Short-time deep efficient current-limiting reactance device
By introducing a heat dissipation system consisting of a fan-driven heat exchange plate, vertical heat absorption pipes, and horizontal heat dissipation pipes into the dry-type air-core reactor, the overheating problem of the dry-type air-core reactor when arranged longitudinally is solved, achieving efficient temperature management and improving the efficiency and stability of the device.
Patent Information
- Application Number
- CN202520215844.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Existing dry-type air-core reactors are prone to overheating when arranged longitudinally, which reduces the efficiency of the device and fails to meet the requirements of high efficiency and continuity.
The heat exchange plate structure driven by a fan, through a heat exchange assembly consisting of vertical heat absorption pipes and horizontal heat dissipation pipes, combined with heat-conducting rods and connecting rods, achieves effective heat exchange and heat dissipation, and maintains coil temperature balance.
It effectively reduces the temperature difference between adjacent coils, improves the efficiency and stability of the current-limiting reactor, and avoids the reduction in device efficiency due to overheating.
Smart Images

Figure CN223712542U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reactor technology, specifically a short-time deep high-efficiency current-limiting reactor device. Background Technology
[0002] Dry-type air-core reactors are inductive high-voltage electrical appliances used in power systems for limiting short-circuit current, reactive power compensation, and phase shifting. They employ a cylindrical structure with multiple windings connected in parallel. The windings are tightly encapsulated by epoxy resin-impregnated glass fiber, which is then cured at high temperatures. Ventilation channels are formed between the encapsulations, resulting in good heat dissipation and low hot-spot temperatures. In existing technologies, air-core reactors are typically arranged in a vertical straight line, a triangular formation, or a horizontal straight line when used in series or parallel connections. When air-core reactors are arranged vertically, the upper and lower reactors need to be fixed together.
[0003] According to the authorization announcement number CN 2192260 U, a dry-type hollow current-limiting reactor device is disclosed, including a reactor body. Several reactor bodies are arranged longitudinally. Each reactor body includes a base, a top seat, and a coil. A pad is fixed to the upper surface of the base by screws, and a partition is provided between the base and the top seat. This invention, by setting a longitudinal splicing structure for the reactors, allows for quick connection between the star-shaped base of the upper reactor body and the star-shaped top seat of the lower reactor body when the dry-type hollow reactors are assembled longitudinally. This connection method is structurally stable. Furthermore, by setting an auxiliary positioning structure for the reactors, the upper and lower reactors are aligned and plugged in. This method improves the alignment speed of the connectors and connecting slots, enhancing the speed and stability of the assembly.
[0004] The above-mentioned patents show that the adjacent structures may overheat during use, which reduces the efficiency of the device and fails to meet the requirements of high efficiency and continuous use. Therefore, there is a need for a short-time, deep, high-efficiency current-limiting reactor device. Utility Model Content
[0005] The purpose of this invention is to provide a short-time, high-efficiency current-limiting reactor device that uses a fan to exchange heat inside the heat exchange plate, thereby improving the temperature between two adjacent sets of structures and solving the technical problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a short-time deep high-efficiency current-limiting reactor device, comprising several groups of coils, the top ends of each group of coils being connected and installed via a connecting locking seat, and the bottom ends of the coils being positioned and connected via a positioning base;
[0007] A heat exchange plate is provided between two adjacent sets of coils. A set of positioning blocks is connected to both ends of each set of heat exchange plates. A set of fans is provided inside each set of positioning blocks. A set of heat-conducting plates is installed through each set of heat exchange plates corresponding to the coil positions on both sides. A heat exchange component is provided inside each set of heat exchange plates.
[0008] The heat exchange assembly includes a vertical heat absorption pipe and a horizontal heat dissipation pipe, as well as a connecting rod and a heat-conducting rod installed inside the vertical heat absorption pipe and the horizontal heat dissipation pipe.
[0009] Preferably, each group of coils is provided with a set of connectors at its upper and lower ends, and each group of coils is provided with a set of connecting guide plates installed on one side.
[0010] Preferably, the connecting locking seat and the positioning base have several sets of positioning windows in the middle corresponding to the positions of each set of heat exchange plates. The connecting locking seat and the positioning base are separated from the middle and connected by bolts. A set of auxiliary positioning plates are installed on both sides of the connecting locking seat.
[0011] Preferably, a set of positioning rods are symmetrically installed on both sides of the positioning block, and several sets of through holes are sequentially opened on the front and rear sides of the heat exchange plate from top to bottom.
[0012] Preferably, each set of positioning blocks has a set of mounting plates located on the fan output side inside, and a limit frame is fixedly installed on the outer arc surface of each set of mounting plates, and the limit frame is installed on the inner wall of the positioning block.
[0013] Preferably, the vertical heat absorption pipe is connected to a set of mounting plates at both ends, and several sets of horizontal heat dissipation pipes are provided. The vertical heat absorption pipe and the horizontal heat dissipation pipe have heat dissipation cavities inside, and the end of the horizontal heat dissipation pipe extends out from the through hole.
[0014] Preferably, the heat-conducting rods are installed and fixedly connected to the connecting rods from top to bottom, and the heat-conducting rods extend from inside the transverse heat dissipation pipe.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. The heat-conducting plates installed on both sides of the heat exchange plate can conduct the temperature between the two adjacent coils, and the operation of the fan can quickly send the external cold air into the heat exchange plate. The heat inside the heat exchange plate is exchanged through the through holes, so that the temperature between the two adjacent coils can be kept at a relatively balanced level, avoiding the continuous rise in temperature from affecting the overall efficiency of the current limiting reactor.
[0017] 2. The vertical heat absorption pipe and the horizontal heat dissipation pipe are located inside the heat exchange plate to absorb the internal temperature of the heat exchange plate, and the temperature is sent to the outside of the heat exchange plate through the heat dissipation cavity opened inside the vertical heat absorption pipe and the horizontal heat dissipation pipe. At the same time, the heat dissipation cavity is also equipped with connecting rods and heat conduction rods, and the heat conduction rods extend from the inside of the heat dissipation cavity to the outside of the heat exchange plate, which can better conduct the temperature, thereby ensuring the overall temperature stability of the heat exchange plate, and thus better changing the overall temperature of the current limiting reactor device. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram showing the overall structure of this utility model disassembled;
[0020] Figure 3 This is a schematic diagram of the overall structure of the heat exchange plate of this utility model;
[0021] Figure 4 This is a disassembled schematic diagram of the heat-conducting plate installation structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the installation structure of the heat-conducting rod of this utility model;
[0023] Figure 6 This is a disassembled schematic diagram of the heat-conducting rod installation structure of this utility model.
[0024] In the diagram: 1. Coil; 2. Connector; 3. Connecting guide plate; 4. Connecting locking seat; 5. Positioning window; 6. Auxiliary positioning plate; 7. Positioning base; 8. Heat exchange plate; 9. Positioning block; 10. Positioning rod; 11. Fan; 12. Heat conduction plate; 13. Through hole; 14. Mounting plate; 15. Limiting bracket; 16. Vertical heat absorption pipe; 17. Horizontal heat dissipation pipe; 18. Heat dissipation cavity; 19. Connecting rod; 20. Heat conduction rod. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] This utility model provides: a short-time, high-efficiency current-limiting reactor device, such as... Figures 1-6As shown, it includes several sets of coils 1. The top of each set of coils 1 is connected and installed through a connecting locking seat 4, and the bottom of the coils 1 is positioned and connected through a positioning base 7. A set of heat exchange plates 8 is provided between two adjacent sets of coils 1. A set of positioning blocks 9 are connected and installed at both ends of each set of heat exchange plates 8. A set of fans 11 is provided inside each set of positioning blocks 9. A set of heat conduction plates 12 is installed through each set of heat exchange plates 8 corresponding to the positions of the coils 1 on both sides. A heat exchange component is provided inside each set of heat exchange plates 8. The heat exchange component includes a vertical heat absorption pipe 16 and a horizontal heat dissipation pipe 17, as well as a connecting rod 19 and a heat conduction rod 20 installed inside the vertical heat absorption pipe 16 and the horizontal heat dissipation pipe 17.
[0027] Preferably, each coil 1 is provided with a set of connectors 2 at its upper and lower ends, and a set of connecting guide plates 3 are installed on one side of each coil 1. The connectors 2 installed at both ends of the coil 1 cooperate with the connecting locking seat 4 and the positioning base 7 to ensure that each group of coils 1 can be connected. The connecting guide plates 3 can ensure that each group of coils 1 can be connected alternately, and ensure that the coil 1 can be connected to the external structure.
[0028] Furthermore, several sets of positioning windows 5 are respectively opened in the middle of the connecting locking seat 4 and the positioning base 7 corresponding to the positions of each set of heat exchange plates 8. The connecting locking seat 4 and the positioning base 7 are respectively separated from the middle and connected by bolts. A set of auxiliary positioning plates 6 are installed on both sides of the connecting locking seat 4. The connecting locking seat 4 and the positioning base 7 are separated from the middle and locked by bolts, which can better limit the positioning block 9. At the same time, the continuous tightening of the bolts can better lock and position the connecting head 2 at the upper and lower ends of the coil 1, further improving the stability of the device.
[0029] Furthermore, a set of positioning rods 10 are symmetrically installed on both sides of the positioning block 9, and several sets of through holes 13 are opened from top to bottom on the front and rear sides of the heat exchange plate 8. The positioning rods 10 installed on both sides of the positioning block 9 can better position the positioning block 9 during the locking process of connecting the locking seat 4 and the positioning base 7. The heat-conducting plates 12 installed on both sides of the heat exchange plate 8 of the connector 2 can introduce the heat between the two adjacent sets of coils 1 into the interior of the heat exchange plate 8, and send the hot air out from the interior of the through holes 13 through the operation of the fan 11 to complete the cooling of the heat exchange plate 8, thereby better cooling the two adjacent sets of coils 1.
[0030] In addition, each set of positioning blocks 9 has a set of mounting plates 14 located on the output side of the fan 11. Each set of mounting plates 14 has a limit frame 15 fixedly installed on its outer arc surface. The limit frame 15 is installed on the inner wall of the positioning block 9. The mounting plate 14 limits the vertical heat absorption pipe 16, and the limit frame 15 limits the mounting plate 14. The air generated by the fan 11 can enter the heat exchange plate 8 through the limit frame 15 and also enter the vertical heat absorption pipe 16 through the mounting plate 14, thereby sending out the hot air inside the heat dissipation cavity 18.
[0031] It is worth noting that the two ends of the vertical heat absorption pipe 16 are respectively connected to a set of mounting plates 14. Several sets of horizontal heat dissipation pipes 17 are provided. The vertical heat absorption pipe 16 and the horizontal heat dissipation pipe 17 have heat dissipation cavities 18 inside. The end of the horizontal heat dissipation pipe 17 extends out from the through hole 13. The heat conduction rod 20 is installed and fixedly connected to the connecting rod 19 from top to bottom. The heat conduction rod 20 extends out from the inside of the horizontal heat dissipation pipe 17. The vertical heat absorption pipe 16 and the horizontal heat dissipation pipe 17 absorb the internal temperature of the heat exchange plate 8. At the same time, the connecting rod 19 and the heat conduction rod 20 conduct the high temperature inside the heat dissipation cavity 18, further balancing the internal temperature of the heat exchange plate 8, so as to ensure that the heat exchange plate 8 can perform heat exchange treatment on the two adjacent sets of coils 1.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A short-time, high-efficiency current-limiting reactor device, characterized in that: It includes several groups of coils (1), the top of each group of coils (1) is connected and installed through a connecting locking seat (4), and the bottom of the coils (1) is positioned and connected through a positioning base (7); A heat exchange plate (8) is provided between two adjacent sets of coils (1). A set of positioning blocks (9) is connected to each end of each set of heat exchange plates (8). A set of fans (11) is provided inside each set of positioning blocks (9). A set of heat-conducting plates (12) is installed through each set of heat exchange plates (8) corresponding to the positions of the coils (1) on both sides. A heat exchange component is provided inside each set of heat exchange plates (8). The heat exchange assembly includes a vertical heat absorption pipe (16) and a horizontal heat dissipation pipe (17), as well as a connecting rod (19) and a heat-conducting rod (20) installed inside the vertical heat absorption pipe (16) and the horizontal heat dissipation pipe (17).
2. The short-time deep high-efficiency current-limiting reactor device according to claim 1, characterized in that: Each coil (1) is provided with a set of connectors (2) at its upper and lower ends, and each coil (1) is provided with a set of connecting guide plates (3) installed on one side.
3. The short-time deep high-efficiency current-limiting reactor device according to claim 2, characterized in that: The connecting locking seat (4) and the positioning base (7) are provided with several sets of positioning windows (5) respectively corresponding to the positions of each set of heat exchange plates (8). The connecting locking seat (4) and the positioning base (7) are separated from the middle and connected by bolts. A set of auxiliary positioning plates (6) are installed on both sides of the connecting locking seat (4).
4. The short-time deep high-efficiency current-limiting reactor device according to claim 3, characterized in that: A set of positioning rods (10) are symmetrically installed on both sides of the positioning block (9), and several sets of through holes (13) are opened from top to bottom on the front and rear sides of the heat exchange plate (8).
5. The short-time deep high-efficiency current-limiting reactor device according to claim 4, characterized in that: Each set of positioning blocks (9) has a set of mounting plates (14) located inside the fan (11) output side. Each set of mounting plates (14) has a limit frame (15) fixedly installed on the outer arc surface. The limit frame (15) is installed on the inner wall of the positioning block (9).
6. The short-time deep high-efficiency current-limiting reactor device according to claim 5, characterized in that: The vertical heat absorption pipe (16) is connected to a set of mounting plates (14) at both ends. Several sets of horizontal heat dissipation pipes (17) are provided. The vertical heat absorption pipe (16) and the horizontal heat dissipation pipe (17) are provided with heat dissipation cavities (18). The end of the horizontal heat dissipation pipe (17) extends out from the through hole (13).
7. The short-time deep high-efficiency current-limiting reactor device according to claim 6, characterized in that: The heat-conducting rods (20) are installed and fixedly connected to the connecting rods (19) from top to bottom, and the heat-conducting rods (20) extend from inside the horizontal heat dissipation pipes (17).