Transformer cabinet and electronic equipment
By integrating the transformer and buffer resistor into the same cabinet, the space utilization and wiring structure are optimized, solving the problem of large space occupation by transformer cabinets, achieving a compact design and simplified wiring, and improving the efficiency and reliability of the electrical system.
Patent Information
- Application Number
- CN202423134341.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-18
AI Technical Summary
When traditional transformer cabinets and buffer cabinets are used together, they occupy a large space, which limits the flexibility of equipment layout, increases cable costs and assembly complexity, and affects the reliability of electrical systems.
The transformer and buffer resistor are integrated into the same cabinet. The transformer is located in the first installation space and the buffer resistor is located in the second installation space. They are supported by the resistor support beam and the current transformer support beam on the side panel of the cabinet. Combined with the vacuum contactor and cooling fan, the space utilization and wiring structure are optimized.
It improves space utilization, reduces floor space, shortens cable length, reduces material costs, simplifies wiring complexity, and enhances installation convenience and power system stability.
Smart Images

Figure CN223941645U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of electrical equipment technology, and more specifically, relates to a transformer cabinet and electronic equipment. Background Technology
[0002] The parallel use of buffer cabinets and transformer cabinets is a common configuration. Traditionally, this requires reserving considerable space to accommodate their side-by-side placement. This not only increases the site requirements for the entire power facility but also limits the flexibility of equipment layout, especially in space-constrained locations such as substations or distribution rooms in urban centers. Furthermore, transformers and other electrical components are typically distributed between the two cabinets, necessitating the use of numerous cables to navigate within a limited space. This increases cabling costs, complicates the assembly process, and negatively impacts overall assembly efficiency and the reliability of the electrical system. Utility Model Content
[0003] The purpose of this application is to provide a transformer cabinet and electronic equipment to solve the technical problem that transformer cabinets occupy a large amount of space when used in conjunction with buffer cabinets in the prior art.
[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:
[0005] A transformer cabinet is provided, comprising:
[0006] The cabinet has a first installation space and a second installation space inside;
[0007] The transformer is located in the first installation space and supported on the bottom plate of the cabinet; the second installation space is located on one side of the transformer.
[0008] A buffer resistor is provided in the second mounting space and supported on the side panel of the cabinet.
[0009] As a further improvement to the above technical solution:
[0010] Optionally, a vacuum contactor is also included, disposed in the second installation space and supported on the bottom plate of the cabinet, wherein the buffer resistor is electrically connected to the vacuum contactor and the vacuum contactor is electrically connected to the transformer.
[0011] Optionally, the input terminal of the vacuum contactor is electrically connected to the incoming copper busbar, and the output terminal of the vacuum contactor is electrically connected to the transformer.
[0012] Optionally, the cabinet includes a resistor support beam, one side edge of which is supported on the side panel, and at least one buffer resistor is mounted on the resistor support beam.
[0013] Optionally, the resistor support beams are arranged in pairs and spaced apart from each other along the height direction of the cabinet. One end of the buffer resistor is connected to one of the paired resistor support beams, and the other end of the buffer resistor is connected to the other of the paired resistor support beams.
[0014] Optionally, a current transformer is included, which is disposed in the second mounting space and supported on the side panel of the cabinet. The current transformer is located above the vacuum contactor and is used to measure the current parameters between the vacuum contactor and the incoming copper busbar.
[0015] Optionally, the cabinet includes a current transformer support beam, which is supported on the side panel of the cabinet and extends along the width of the cabinet, and the current transformer is mounted on the current transformer support beam.
[0016] Optionally, the buffer resistor is located above the current transformer.
[0017] Optionally, a cooling fan may also be included, which is installed on the cabinet.
[0018] This application also provides an electronic device, which includes the above-described transformer cabinet.
[0019] The beneficial effects of the transformer cabinet and electronic equipment provided in this application are as follows:
[0020] The transformer cabinet provided in this application includes a cabinet body, a transformer, and a buffer resistor. The cabinet body has a first installation space and a second installation space. The transformer is located in the first installation space and supported on the base plate of the cabinet body. The base plate has mounting holes corresponding to the transformer. The second installation space is located on one side of the transformer. The buffer resistor is located in the second installation space and is specifically supported on the side plate of the cabinet body. This transformer cabinet integrates the transformer and buffer resistor into the same cabinet body, making the structure more compact, improving space utilization, effectively reducing the floor space, and shortening the length of connecting cables between functional components. This not only reduces material costs but also simplifies wiring complexity and further improves the convenience of installation and commissioning.
[0021] The electronic equipment provided in this application includes the aforementioned transformer cabinet, and therefore also has the advantages of the aforementioned transformer cabinet. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the main structure of the transformer cabinet provided in this application;
[0024] Figure 2 This is a three-dimensional structural diagram of the transformer cabinet provided in this application.
[0025] The following are the labeling elements in the figure:
[0026] 1. Cabinet body; 11. Base plate;
[0027] 12. Side plate section; 13. Resistance support beam;
[0028] 14. Instrument transformer support beam; 2. Transformer;
[0029] 3. Buffer resistor; 4. Vacuum contactor;
[0030] 5. Current transformer; 6. Cooling fan. Detailed Implementation
[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0036] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of this utility model.
[0037] In the following description, suffixes such as "circuit," "component," "assembly," or "unit" are used only for the purpose of describing this utility model and have no specific meaning in themselves. Therefore, they can be used in combination.
[0038] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0039] like Figure 1 and Figure 2 As shown, this application provides a transformer cabinet, including a cabinet body 1, a transformer 2, and a buffer resistor 3.
[0040] The cabinet 1 mainly consists of a square frame and panels or doors on each end face of the frame. Maintenance personnel open and close the doors to perform necessary inspections, maintenance, and replacements of the equipment inside the cabinet 1. The panels or doors are also equipped with necessary locks and protective devices to prevent unauthorized personnel from entering or operating the equipment inside the cabinet 1, thus ensuring the safe and stable operation of the power system. The cabinet 1 has a first installation space and a second installation space. The transformer 2 is located in the first installation space and supported on the base plate 11 of the cabinet 1. The base plate 11 has mounting holes corresponding to the transformer 2. The second installation space is located on one side of the transformer 2. Except for the height of the transformer 2, its length is generally greater than its width / thickness. Considering the utilization of the internal space of the cabinet 1, the second installation space is preferably located on one side along the length of the transformer 2.
[0041] The buffer resistor 3, as a key component protecting the circuit from transient overvoltage surges, is located in the second mounting space and is specifically supported on the side panel 12 of the cabinet 1. The side panel 12 specifically refers to a structural component located on the lateral end face of the cabinet 1, which can be a frame column or a side panel located on the lateral end face.
[0042] The transformer cabinet of this application integrates the transformer 2 and the buffer resistor 3 into the same cabinet 1, making the structure of the transformer cabinet more compact, improving its space utilization, effectively reducing the floor area, and shortening the length of the connecting cables between various functional components. This not only reduces material costs but also simplifies wiring complexity and further improves the convenience of installation and commissioning.
[0043] like Figure 1 and Figure 2 As shown, in one specific embodiment of this application, the transformer cabinet further includes a vacuum contactor 4, which is disposed in the second mounting space and supported on the bottom plate 11 of the cabinet 1. A buffer resistor 3 is electrically connected to the vacuum contactor 4, and the vacuum contactor 4 is electrically connected to the transformer 2. The vacuum contactor 4 is a contactor that uses its vacuum interrupter to extinguish arcs, and is commonly used to connect and disconnect normal operating current. The vacuum contactor 4 is specifically disposed within the second mounting space. Due to its large weight, it is supported on the bottom plate 11 of the cabinet 1. The buffer resistor 3 is electrically connected to the vacuum contactor 4, and the vacuum contactor 4 is electrically connected to the transformer 2.
[0044] In one specific embodiment of this application, the input terminal of the vacuum contactor 4 is electrically connected to the incoming copper busbar, and the output terminal of the vacuum contactor 4 is electrically connected to the transformer 2.
[0045] like Figure 1 and Figure 2As shown in a specific embodiment of this application, the cabinet 1 includes a resistor support beam 13, one side edge of which is supported on the side plate 12. At least one buffer resistor 3 is installed on the resistor support beam 13. Based on meeting safety standards, the buffer resistor 3 is positioned as close as possible to the transformer 2 while ensuring full compliance with power industry safety regulations. This shortens the physical distance between functional components, thereby reducing cable usage and energy transmission losses, and improving the efficiency and stability of the entire power system. When there are multiple buffer resistors 3, the requirements of the transformer 2 for buffering performance can be met. The buffer resistors 3 are arranged sequentially along the extension direction of the resistor support beam 13, maintaining sufficient safety distance between them to prevent safety hazards caused by abnormal conditions such as resistor overheating or short circuits, and also reserving necessary operating space for subsequent maintenance and repair work.
[0046] like Figure 1 and Figure 2 As shown in one specific embodiment of this application, the resistor support beams 13 are arranged in pairs and spaced apart from each other along the height direction of the cabinet 1. One end of the buffer resistor 3 is connected to one of the paired resistor support beams 13, and the other end of the buffer resistor 3 is connected to the other of the paired resistor support beams 13. This connection method not only ensures that the buffer resistor 3 can be stably fixed in the predetermined position, but more importantly, it allows the buffer resistor 3 to be displayed in a vertical arrangement inside the cabinet 1. The vertical arrangement of the buffer resistor 3 can reduce the risk of deformation caused by the weight of the resistor itself or external factors, and also improves heat dissipation efficiency, because the vertical posture is more conducive to the natural convection and dissipation of heat. In addition, this layout method also provides convenience for subsequent maintenance and replacement work. Technicians can more easily access and operate the buffer resistor 3, thereby reducing maintenance costs and extending the service life of the equipment.
[0047] like Figure 1 and Figure 2 As shown, in one specific embodiment of this application, the transformer cabinet includes a current transformer 5. The current transformer 5 is a measuring instrument that converts a large primary current into a small secondary current based on the principle of electromagnetic induction. The current transformer 5 is also located within the second mounting space and is supported on the side plate 12 of the cabinet body 1. The current transformer 5 is positioned above the vacuum contactor 4 to measure the current parameters between the vacuum contactor 4 and the incoming copper busbar, thereby monitoring the real-time operation of the transformer cabinet.
[0048] like Figure 1 and Figure 2As shown, in one specific embodiment of this application, the cabinet 1 includes a current transformer support beam 14. The current transformer support beam 14 is supported on the side plate portion 12 of the cabinet 1 and extends along the width direction of the cabinet 1, facilitating the installation of multiple current transformers 5 on it, thus enabling multi-circuit monitoring of the power system. The current transformer support beam 14 avoids electrical connection difficulties or measurement errors caused by improper installation positions of the current transformers 5.
[0049] like Figure 1 and Figure 2 As shown, in one specific embodiment of this application, the buffer resistor 3 is disposed above the current transformer 5. The installation height of the buffer resistor 3 should be as close as possible to the height of the top terminal of the transformer 2, which not only facilitates the electrical connection between the buffer resistor 3 and the vacuum contactor 4, and between the vacuum contactor 4 and the transformer 2, but also reduces line losses during the electrical connection process and improves the transmission efficiency of the power system.
[0050] like Figure 1 and Figure 2 As shown in one specific embodiment of this application, the transformer cabinet further includes a cooling fan 6. The cooling fan 6 is mounted on the cabinet 1, and its air inlet is located above the transformer 2, ensuring that the cooling fan 6 can directly absorb the heat generated by the transformer 2, thereby improving heat dissipation efficiency. To improve the overall heat dissipation capacity of the transformer cabinet, the number of cooling fans 6 can be multiple. By increasing the number of cooling fans 6, rapid heat dissipation from inside the transformer cabinet can be achieved, thereby ensuring that key equipment such as the transformer 2 can operate stably in a suitable temperature environment.
[0051] This application also provides an electronic device that includes the transformer cabinet in the above embodiments, and therefore also has the advantages of the transformer cabinet in the above embodiments.
[0052] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A transformer cabinet, characterized in that, include: The cabinet (1) has a first installation space and a second installation space inside; The transformer (2) is located in the first installation space and supported on the bottom plate (11) of the cabinet (1). The second installation space is located on one side of the transformer (2). A buffer resistor (3) is provided in the second installation space and supported on the side panel (12) of the cabinet (1); The cabinet (1) includes a resistor support beam (13), one side edge of which is supported on the side panel (12). At least one buffer resistor (3) is installed on the resistor support beam (13). The resistor support beams (13) are arranged in pairs and spaced apart from each other along the height direction of the cabinet (1). One end of the buffer resistor (3) is connected to one of the paired resistor support beams (13), and the other end of the buffer resistor (3) is connected to the other of the paired resistor support beams (13).
2. The transformer cabinet as described in claim 1, characterized in that, It also includes a vacuum contactor (4), which is located in the second installation space and supported on the bottom plate (11) of the cabinet (1). The buffer resistor (3) is electrically connected to the vacuum contactor (4), and the vacuum contactor (4) is electrically connected to the transformer (2).
3. The transformer cabinet as described in claim 2, characterized in that, The input terminal of the vacuum contactor (4) is electrically connected to the incoming copper busbar, and the output terminal of the vacuum contactor (4) is electrically connected to the transformer (2).
4. The transformer cabinet as described in claim 2, characterized in that, Includes a current transformer (5), which is located in the second installation space and supported on the side plate (12) of the cabinet (1). The current transformer (5) is located above the vacuum contactor (4) and is used to measure the current parameters between the vacuum contactor (4) and the incoming copper busbar.
5. The transformer cabinet as described in claim 4, characterized in that, The cabinet (1) includes a current transformer support beam (14), which is supported on the side plate (12) of the cabinet (1) and extends along the width direction of the cabinet (1). The current transformer (5) is installed on the current transformer support beam (14).
6. The transformer cabinet as described in claim 4, characterized in that, The buffer resistor (3) is located above the current transformer (5).
7. The transformer cabinet as described in any one of claims 1 to 3, characterized in that, It also includes a cooling fan (6), which is installed on the cabinet (1).
8. An electronic device, characterized in that, The electronic device includes a transformer cabinet as described in any one of claims 1-7.