A combined mutual inductor

Abstract

The present invention discloses a combined mutual inductor, and the present invention relates to the technical field of combined mutual inductors. The combined mutual inductor, through the setting of a protective component, can install the wire body connected to the terminal head into the inside of the arc-shaped protective frame, and through the cooperation of multiple arc-shaped support frames and inner protective plates, when the wire body is affected by factors such as wind, it can move inside the arc-shaped protective frame to buffer the force received. On the one hand, it can ensure the connection stability between the wire body and the terminal head, improve the protective effect and service life of the wire body, and at the same time, it can be applicable to limit operations on wires of different sizes, thereby improving the scope of application of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of combined mutual inductors, in particular to a combined mutual inductor. Background Art

[0002] The mutual inductor, also known as instrument transformer, is a general term for current transformer and voltage transformer. It can convert high voltage into low voltage and large current into small current, and is used for measuring or protecting the system. Referring to the Chinese patent, the announcement number is "CN116798759A" "A primary combined mutual inductor", which points out that the existing sensors are in outdoor use environment for a long time, and there is no good protective structure on the outside of the mutual inductor, which makes it easy to age and affects the service life. In addition, due to the combined structure, the volume and weight are large, which is not convenient to lift for detection, repair and maintenance. However, the combined mutual inductor still lacks protection for the conductive wiring and has poor heat dissipation performance. In this regard, we propose a combined mutual inductor to solve the above problems. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention provides a combined mutual inductor to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a combined transformer, comprising a transformer body, a mounting substrate fixedly mounted at the bottom of the transformer body, a protective shell mounted on the top surface of the mounting substrate, a top sealing plate mounted on the top of the protective shell, and the transformer body is located inside the protective shell;

[0005] The protective housing is provided with a plurality of protective components, the transformer body is provided with a plurality of wiring terminals, and the wiring terminals are connected with the wire bodies, and the protective components are used to store and protect the wire bodies connected to the wiring terminals;

[0006] The protection component includes a right-angle positioning frame, which is fixed to the inner side of the protection shell, and an arc-shaped protection frame is slidably connected inside the right-angle positioning frame. A plurality of supporting springs are connected between the end of the arc-shaped protection frame and the inner side of the right-angle positioning frame, and the end of the wire body penetrates into the arc-shaped protection frame. A positioning screw is provided at the end of the arc-shaped protection frame for locking the contact position between the wire body and the end of the arc-shaped protection frame;

[0007] The arc-shaped protective frame is slidably connected to a plurality of limit slide bars on one side close to the transformer body, an arc-shaped support frame is fixedly installed on one end of the limit slide bar close to the conductor body, and a plurality of limit shafts are rotatably connected inside the arc-shaped support frame, the arc-shaped support frame is used to support the conductor body, and a spring body is sleeved on the outer side of the limit slide bar.

[0008] Preferably, a locking plate frame is fixedly installed at the end of the arc-shaped protective frame, and the positioning screw is threadedly connected to the inside of the locking plate frame. A positioning pressure plate is rotatably installed at one end of the positioning screw close to the wire body, and the positioning pressure plate is used to move downward with the positioning screw until it contacts the wire body to fix the wire body.

[0009] Preferably, an inner protective plate is fixedly installed on the side of the arc-shaped protective frame away from the arc-shaped supporting frame, and a plurality of limiting rollers are rotatably connected inside the inner protective plate. The limiting rollers are used to contact the outer surface of the conductor body to reduce the friction suffered by the conductor body when moving inside the arc-shaped protective frame.

[0010] Preferably, a plurality of limiting sliding grooves are provided inside the right-angle positioning frame, and the arc-shaped protective frame is slidably connected to the right-angle positioning frame via the limiting sliding grooves.

[0011] Preferably, the assembly base plate and the top sealing plate are fixedly mounted with plug-in boards on one side close to the protective shell, and the upper and lower sides of the protective shell are provided with plug-in slots matching the plug-in boards. The assembly base plate and the top sealing plate are plugged into the protective shell through the cooperation of the plug-in boards and the plug-in slots, and locking bolts are provided between the assembly base plate and the protective shell, as well as between the top sealing plate and the protective shell.

[0012] Preferably, mounting plates are fixedly mounted on both sides of the bottom of the mounting substrate.

[0013] Preferably, heat sink frames are fixedly installed on both sides of the interior of the protective shell, the heat sink frames on both sides are symmetrical to each other, and multiple ventilation slots are obliquely opened inside the heat sink frames to accelerate air exchange inside the protective shell.

[0014] Preferably, filter fiber strips are fixedly installed inside the plurality of ventilation slots to filter dust in the air.

[0015] Preferably, a bottom heat sink is fixedly installed inside the assembly substrate, a plurality of heat dissipation pipes are fixedly installed on the top surface of the bottom heat sink, and a plurality of heat dissipation fins are fixedly installed below the bottom heat sink.

[0016] Preferably, the plurality of heat dissipation pipes are symmetrically distributed on both sides of the transformer body.

[0017] The present invention provides a combined mutual inductor. Compared with the prior art, it has the following beneficial effects:

[0018] (1) The combined transformer, through the setting of the protective component, can install the wire body connected to the terminal head into the inside of the arc-shaped protective frame, and through the cooperation of multiple arc-shaped support frames and inner protective plates, when the wire body is affected by factors such as wind, it can move inside the arc-shaped protective frame to buffer the force received. On the one hand, it can ensure the connection stability between the wire body and the terminal head, improve the protective effect and service life of the wire body, and at the same time, it can be used for limiting operations on wires of different sizes, thereby improving the scope of application of the equipment.

[0019] (2) This combined transformer, through the cooperation of the heat sink frame and the bottom heat sink frame, can prevent external debris and water stains from contacting the transformer body after the protective shell is assembled, thereby improving the protection effect of the transformer body. At the same time, through the heat sink frame and the bottom heat sink frame, the heat inside the protective shell can be conducted, and the external air can enter the protective shell, further ensuring the heat dissipation performance during the operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the protective housing of the present invention;

[0022] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 It is a side view of the transformer body of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the transformer body of the present invention;

[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of the assembly substrate of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the right-angle positioning frame and the arc-shaped protection frame of the present invention;

[0027] Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle;

[0028] Fig. 9 For the present invention Figure 7 Top view;

[0029] Fig.10 For the present invention Fig. 9 Enlarged structural diagram at point C in the middle.

[0030] In the figure: 1. protective shell; 2. transformer body; 201. wiring terminal; 3. assembly base plate; 301. assembly plate; 4. heat sink frame; 401. ventilation slot; 402. filter fiber strip; 5. top sealing plate; 6. bottom heat sink; 601. heat dissipation pipe; 602. heat dissipation fin; 7. plug-in board; 8. right-angle positioning frame; 801. limiting slide; 802. support spring; 9. arc-shaped protective frame; 10. conductor body; 11. inner protective plate; 1101. limiting roller; 12. locking plate frame; 13. positioning screw; 1301. positioning pressure plate; 14. limiting slide; 1401. arc-shaped support frame; 1402. limiting shaft; 1403. spring body. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 10 The present invention provides two technical solutions, which specifically include the following embodiments: Example

[0033] In an embodiment of the present invention, a combined mutual inductor includes a mutual inductor body 2, a mounting substrate 3 is fixedly mounted on the bottom of the mutual inductor body 2, a protective housing 1 is mounted on the top surface of the mounting substrate 3, a top sealing plate 5 is mounted on the top of the protective housing 1, and the mutual inductor body 2 is located inside the protective housing 1;

[0034] Specifically, the transformer body 2 is an existing device, which is cast and filled with insulating resin material, and will not be described in detail here;

[0035] Specifically, by setting the assembly substrate 3, it is convenient to assemble the transformer body 2 to a preset position through existing devices such as a tripod. During installation, the transformer body 2 and the assembly substrate 3 are first fixedly connected by bolts, and then the protective housing 1 and the assembly substrate 3 are assembled. By setting the protective housing 1, the protection effect of the transformer body 2 can be effectively improved;

[0036] Specifically, a plurality of protective components are provided inside the protective housing 1, a plurality of wiring terminals 201 are provided inside the transformer body 2, and a wire body 10 is connected to the wiring terminals 201, and the protective components are used to store and protect the wire body 10 connected to the wiring terminals 201;

[0037] Specifically, during the wiring process, the wire body 10 connected to the wiring terminal 201 can be inserted into the protective component, and then passed through the protective housing 1. Through the setting of the protective component, when the wire body 10 is affected by factors such as wind, it can run inside the protective component, which ensures the connection stability between the wire body 10 and the wiring terminal 201, and at the same time can improve the protection effect and service life of the wire body 10;

[0038] Specifically, a plurality of elastic ring frames are installed inside the protective housing 1, and are used for the wire body 10 to pass through the protective housing 1 through the elastic ring frames, so as to ensure sealing and prevent external debris from entering the protective housing 1. The elastic ring frames are not shown in the figure;

[0039] Specifically, the protection component includes a right-angle positioning frame 8, which is fixed on the inner side of the protection shell 1, and an arc-shaped protection frame 9 is slidably connected inside the right-angle positioning frame 8, and a plurality of support springs 802 are connected between the end of the arc-shaped protection frame 9 and the inner side of the right-angle positioning frame 8, and the end of the wire body 10 penetrates into the arc-shaped protection frame 9, and a positioning screw 13 is provided at the end of the arc-shaped protection frame 9, which is used to lock the contact position between the wire body 10 and the end of the arc-shaped protection frame 9;

[0040] Specifically, the arc-shaped protective frame 9 is of the top open type. When the wire body 10 is connected to the terminal 201, the wire body 10 is pressed into the inside through the top of the arc-shaped protective frame 9. When the wire body 10 is locked by the positioning screw 13, the wire body 10 should be prevented from being tensioned. A portion of the length of the wire body should be reserved between the terminal 201 and the end of the arc-shaped protective frame 9. Then, the positioning screw 13 is screwed to lock the wire body 10, and then the end of the wire body 10 away from the terminal 201 is passed through the elastic ring frame to pass through the protective housing 1.

[0041] Specifically, a plurality of limit slide bars 14 are slidably connected to one side of the arc-shaped protection frame 9 close to the transformer body 2, an arc-shaped support frame 1401 is fixedly installed on one end of the limit slide bar 14 close to the conductor body 10, and a plurality of limit shafts 1402 are rotatably connected inside the arc-shaped support frame 1401, the arc-shaped support frame 1401 is used to support the conductor body 10, and a spring body 1403 is sleeved on the outer side of the limit slide bar 14;

[0042] By setting the limiting slide bar 14 and the arc-shaped support frame 1401, when the conductor body 10 is pressed into the arc-shaped protective frame 9, the conductor body 10 can be supported by the cooperation of multiple arc-shaped support frames 1401, the limiting shaft 1402 and the spring body 1403, so that the conductor body 10 can be forced to fit with the side of the arc-shaped protective frame 9 away from the arc-shaped support frame 1401. When the conductor body 10 is affected by wind, the arc-shaped support frame 1401 can be forced to drive the limiting shaft 1402 to slide, and squeeze the spring body 1403 to achieve force buffering of the conductor body 10, further improve the protection effect of the conductor body 10, and at the same time can be applicable to the limiting operation of conductor bodies 10 of different sizes to ensure the application range of the equipment;

[0043] Specifically, a locking plate frame 12 is fixedly installed at the end of the arc-shaped protective frame 9, and a positioning screw 13 is threadedly connected inside the locking plate frame 12. A positioning pressure plate 1301 is rotatably installed at one end of the positioning screw 13 close to the wire body 10. The positioning pressure plate 1301 is used to move downward with the positioning screw 13 until it contacts the wire body 10, thereby fixing the wire body 10;

[0044] Specifically, a plurality of limiting slide grooves 801 are provided inside the right-angle positioning frame 8, and the arc-shaped protection frame 9 is slidably connected to the right-angle positioning frame 8 through the limiting slide grooves 801;

[0045] Specifically, the assembly substrate 3 and the top sealing plate 5 are fixedly mounted with a plug-in board 7 on one side close to the protective shell 1, and the upper and lower sides of the protective shell 1 are provided with plug-in slots adapted to the plug-in board 7. The assembly substrate 3 and the top sealing plate 5 are plugged into the protective shell 1 through the cooperation of the plug-in board 7 and the plug-in slots, and locking bolts are provided between the assembly substrate 3 and the protective shell 1 and between the top sealing plate 5 and the protective shell 1;

[0046] Specifically, the plug-in board 7 is provided to ensure the sealing between the assembly substrate 3 and the top sealing board 5 and the protective housing 1. After the assembly substrate 3 and the top sealing board 5 and the protective housing 1 are plugged in through the plug-in board 7 and the plug-in slot, further locking is completed through the locking bolt.

[0047] Specifically, mounting plates 301 are fixedly mounted on both sides of the bottom of the mounting substrate 3 . The mounting plates 301 are conveniently connected to an existing tripod or other mounting frames to complete the assembly operation of the mounting substrate 3 .

[0048] Embodiment 2: Based on embodiment 1, a combined mutual inductor comprises a mutual inductor body 2, a mounting substrate 3 is fixedly mounted on the bottom of the mutual inductor body 2, a protective housing 1 is mounted on the top surface of the mounting substrate 3, a top sealing plate 5 is mounted on the top of the protective housing 1, and the mutual inductor body 2 is located inside the protective housing 1;

[0049] Specifically, the transformer body 2 is an existing device, which is cast and filled with insulating resin material, and will not be described in detail here;

[0050] Specifically, by setting the assembly substrate 3, it is convenient to assemble the transformer body 2 to a preset position through existing devices such as a tripod. During installation, the transformer body 2 and the assembly substrate 3 are first fixedly connected by bolts, and then the protective housing 1 and the assembly substrate 3 are assembled. By setting the protective housing 1, the protection effect of the transformer body 2 can be effectively improved;

[0051] Specifically, a plurality of protective components are provided inside the protective housing 1, a plurality of wiring terminals 201 are provided inside the transformer body 2, and a wire body 10 is connected to the wiring terminals 201, and the protective components are used to store and protect the wire body 10 connected to the wiring terminals 201;

[0052] Specifically, during the wiring process, the wire body 10 connected to the wiring terminal 201 can be inserted into the protective component, and then passed through the protective housing 1. Through the setting of the protective component, when the wire body 10 is affected by factors such as wind, it can run inside the protective component, which ensures the connection stability between the wire body 10 and the wiring terminal 201, and at the same time can improve the protection effect and service life of the wire body 10;

[0053] Specifically, a plurality of elastic ring frames are installed inside the protective housing 1, and are used for the wire body 10 to pass through the protective housing 1 through the elastic ring frames, so as to ensure sealing and prevent external debris from entering the protective housing 1. The elastic ring frames are not shown in the figure;

[0054] Specifically, the protection component includes a right-angle positioning frame 8, which is fixed on the inner side of the protection shell 1, and an arc-shaped protection frame 9 is slidably connected inside the right-angle positioning frame 8, and a plurality of support springs 802 are connected between the end of the arc-shaped protection frame 9 and the inner side of the right-angle positioning frame 8, and the end of the wire body 10 penetrates into the arc-shaped protection frame 9, and a positioning screw 13 is provided at the end of the arc-shaped protection frame 9, which is used to lock the contact position between the wire body 10 and the end of the arc-shaped protection frame 9;

[0055] Specifically, the arc-shaped protective frame 9 is of the top open type. When the wire body 10 is connected to the terminal 201, the wire body 10 is pressed into the inside through the top of the arc-shaped protective frame 9. When the wire body 10 is locked by the positioning screw 13, the wire body 10 should be prevented from being tensioned. A portion of the length of the wire body should be reserved between the terminal 201 and the end of the arc-shaped protective frame 9. Then, the positioning screw 13 is screwed to lock the wire body 10, and then the end of the wire body 10 away from the terminal 201 is passed through the elastic ring frame to pass through the protective housing 1.

[0056] Specifically, a plurality of limit slide bars 14 are slidably connected to one side of the arc-shaped protection frame 9 close to the transformer body 2, an arc-shaped support frame 1401 is fixedly installed on one end of the limit slide bar 14 close to the conductor body 10, and a plurality of limit shafts 1402 are rotatably connected inside the arc-shaped support frame 1401, the arc-shaped support frame 1401 is used to support the conductor body 10, and a spring body 1403 is sleeved on the outer side of the limit slide bar 14;

[0057] By setting the limiting slide bar 14 and the arc-shaped support frame 1401, when the conductor body 10 is pressed into the arc-shaped protective frame 9, the conductor body 10 can be supported by the cooperation of multiple arc-shaped support frames 1401, the limiting shaft 1402 and the spring body 1403, so that the conductor body 10 can be forced to fit with the side of the arc-shaped protective frame 9 away from the arc-shaped support frame 1401. When the conductor body 10 is affected by wind, the arc-shaped support frame 1401 can be forced to drive the limiting shaft 1402 to slide, and squeeze the spring body 1403 to achieve force buffering of the conductor body 10, further improve the protection effect of the conductor body 10, and at the same time can be applicable to the limiting operation of conductor bodies 10 of different sizes to ensure the application range of the equipment;

[0058] Specifically, a locking plate frame 12 is fixedly installed at the end of the arc-shaped protective frame 9, and a positioning screw 13 is threadedly connected inside the locking plate frame 12. A positioning pressure plate 1301 is rotatably installed at one end of the positioning screw 13 close to the wire body 10. The positioning pressure plate 1301 is used to move downward with the positioning screw 13 until it contacts the wire body 10, thereby fixing the wire body 10;

[0059] Furthermore, an inner protective plate 11 is fixedly installed on one side of the arc-shaped protective frame 9 away from the arc-shaped support frame 1401, and a plurality of limiting rollers 1101 are rotatably connected inside the inner protective plate 11. The limiting rollers 1101 are used to contact the outer surface of the wire body 10 to reduce the friction of the wire body 10 when it moves inside the arc-shaped protective frame 9.

[0060] Specifically, by setting the inner protective plate 11, when the wire body 10 is pushed by the arc-shaped support frame 1401, it can contact the inner protective plate 11, and at the same time, through the cooperation of multiple limiting rollers 1101, the limiting rollers 1101 can be driven to rotate when the wire body 10 is subjected to force, thereby reducing the friction force on the wire body 10;

[0061] Specifically, a plurality of limiting slide grooves 801 are provided inside the right-angle positioning frame 8, and the arc-shaped protection frame 9 is slidably connected to the right-angle positioning frame 8 through the limiting slide grooves 801;

[0062] Specifically, the assembly substrate 3 and the top sealing plate 5 are fixedly mounted with a plug-in board 7 on one side close to the protective shell 1, and the upper and lower sides of the protective shell 1 are provided with plug-in slots adapted to the plug-in board 7. The assembly substrate 3 and the top sealing plate 5 are plugged into the protective shell 1 through the cooperation of the plug-in board 7 and the plug-in slots, and locking bolts are provided between the assembly substrate 3 and the protective shell 1 and between the top sealing plate 5 and the protective shell 1;

[0063] Specifically, the plug-in board 7 is provided to ensure the sealing between the assembly substrate 3 and the top sealing board 5 and the protective housing 1. After the assembly substrate 3 and the top sealing board 5 and the protective housing 1 are plugged in through the plug-in board 7 and the plug-in slot, further locking is completed through the locking bolt.

[0064] Specifically, both sides of the bottom of the assembly substrate 3 are fixedly mounted with assembly plates 301, and the assembly plates 301 are conveniently connected to an existing tripod or other mounting frame to complete the assembly operation of the assembly substrate 3;

[0065] Furthermore, heat sink frames 4 are fixedly installed on both sides of the interior of the protective housing 1, and the heat sink frames 4 on both sides are symmetrical to each other, and multiple ventilation slots 401 are obliquely opened inside the heat sink frames 4 to accelerate the air exchange inside the protective housing 1. Through the opening of the ventilation slots 401, the external air ventilation slots 401 can enter the interior of the protective housing 1, avoiding high temperature when the equipment is running, and ensuring the normal operation of the equipment;

[0066] Furthermore, filter fiber strips 402 are fixedly installed inside the plurality of ventilation slots 401 to filter dust in the air;

[0067] Furthermore, a bottom heat sink 6 is fixedly installed inside the assembly substrate 3, a plurality of heat sink pipes 601 are fixedly installed on the top surface of the bottom heat sink 6, a plurality of heat sink fins 602 are fixedly installed below the bottom heat sink 6, and the plurality of heat sink pipes 601 are symmetrically distributed on both sides of the transformer body 2. The bottom heat sink 6, the heat sink pipes 601 and the heat sink fins 602 are all made of heat-conducting materials, which can enable the high-temperature heat inside the protective shell 1 to be conducted along the heat sink pipes 601 to the bottom heat sink 6 and the heat sink fins 602, thereby further improving the heat dissipation effect of the protective shell 1.

[0068] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0069] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A combined mutual inductor, comprising a mutual inductor body (2), characterized in that: An assembly substrate (3) is fixedly mounted on the bottom of the transformer body (2); a protective housing (1) is mounted on the top surface of the assembly substrate (3); a top sealing plate (5) is mounted on the top of the protective housing (1); and the transformer body (2) is located inside the protective housing (1); The protective housing (1) is provided with a plurality of protective components, the transformer body (2) is provided with a plurality of wiring terminals (201), and the wiring terminals (201) are connected to the wire bodies (10), and the protective components are used to store and protect the wire bodies (10) connected to the wiring terminals (201); The protection component comprises a right-angle positioning frame (8), the right-angle positioning frame (8) is fixed on the inner side of the protection shell (1), an arc-shaped protection frame (9) is slidably connected inside the right-angle positioning frame (8), a plurality of support springs (802) are connected between the end of the arc-shaped protection frame (9) and the inner side of the right-angle positioning frame (8), the end of the wire body (10) penetrates into the arc-shaped protection frame (9), and a positioning screw (13) is provided at the end of the arc-shaped protection frame (9) for locking the contact position between the wire body (10) and the end of the arc-shaped protection frame (9); The arc-shaped protective frame (9) is slidably connected to a plurality of limit slide bars (14) on one side close to the transformer body (2); an arc-shaped support frame (1401) is fixedly installed on one end of the limit slide bar (14) close to the conductor body (10); and a plurality of limit shafts (1402) are rotatably connected inside the arc-shaped support frame (1401); the arc-shaped support frame (1401) is used to support the conductor body (10); and a spring body (1403) is sleeved on the outer side of the limit slide bar (14).

2. A combined mutual inductor according to claim 1, characterized in that: A locking plate frame (12) is fixedly mounted on the end of the arc-shaped protective frame (9); the positioning screw (13) is threadedly connected to the inside of the locking plate frame (12); a positioning pressure plate (1301) is rotatably mounted on one end of the positioning screw (13) close to the wire body (10); the positioning pressure plate (1301) is used to move downward with the positioning screw (13) until it contacts the wire body (10) to fix the wire body (10).

3. A combined mutual inductor according to claim 1, characterized in that: An inner protective plate (11) is fixedly mounted on a side of the arc-shaped protective frame (9) away from the arc-shaped support frame (1401), and a plurality of limiting rollers (1101) are rotatably connected inside the inner protective plate (11). The limiting rollers (1101) are used to contact the outer surface of the conductor body (10) to reduce the friction experienced by the conductor body (10) when moving inside the arc-shaped protective frame (9).

4. A combined mutual inductor according to claim 1, characterized in that: A plurality of limiting sliding grooves (801) are provided inside the right-angle positioning frame (8), and the arc-shaped protection frame (9) is slidably connected to the right-angle positioning frame (8) via the limiting sliding grooves (801).

5. A combined mutual inductor according to claim 1, characterized in that: A plug-in board (7) is fixedly mounted on one side of the assembly substrate (3) and the top cover plate (5) close to the protective shell (1); plug-in slots matching the plug-in board (7) are provided on both the upper and lower sides of the protective shell (1); the assembly substrate (3) and the top cover plate (5) are plugged into the protective shell (1) through the cooperation of the plug-in board (7) and the plug-in slots; locking bolts are provided between the assembly substrate (3) and the protective shell (1) and between the top cover plate (5) and the protective shell (1).

6. A combined mutual inductor according to claim 5, characterized in that: Assembly plates (301) are fixedly mounted on both sides of the bottom of the assembly substrate (3).

7. A combined mutual inductor according to claim 1, characterized in that: Heat sink frames (4) are fixedly mounted on both sides of the protective shell (1); the heat sink frames (4) on both sides are symmetrical to each other, and a plurality of ventilation slots (401) are obliquely opened inside the heat sink frames (4) to accelerate air exchange inside the protective shell (1).

8. A combined mutual inductor according to claim 7, characterized in that: Filter fiber strips (402) are fixedly installed inside the plurality of ventilation slots (401) for filtering dust in the air.

9. A combined mutual inductor according to claim 1, characterized in that: A bottom heat dissipation frame (6) is fixedly mounted inside the assembly substrate (3), a plurality of heat dissipation pipes (601) are fixedly mounted on the top surface of the bottom heat dissipation frame (6), and a plurality of heat dissipation fins (602) are fixedly mounted below the bottom heat dissipation frame (6).

10. A combined mutual inductor according to claim 9, characterized in that: The plurality of heat dissipation pipes (601) are symmetrically distributed on both sides of the transformer body (2).

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