A vertical axis wind power generation device that is easy to install

Abstract

The present invention relates to the technical field of wind power generation, and discloses a vertical axis wind power generation device that is easy to install, comprising a mounting frame, a stator disk, a rotor disk, and fan blades, wherein the mounting frame comprises a plurality of fixed brackets, the fixed brackets are detachably fixed to the mounted member, and split bearings are arranged at both axial ends of the mounting frame; the stator disk comprises a plurality of stator brackets, and the stator brackets are connected to the mounting frame, wherein the stator brackets are provided with winding coils that can generate induced current; the rotor disk comprises a plurality of rotor sub-disks, and the rotor sub-disks are connected to the split bearings; wherein the stator disk is installed in the rotor disk, and a magnetic component that provides a magnetic field for the winding coils is arranged in the rotor sub-disk; the fan blades are connected to the rotor disk, and are used to provide rotational power for the rotor disk, and the advantage is that the device can be flexibly installed at any position of a pole tower of any specification.

Description

Technical Field

[0001] The invention relates to the technical field of wind power generation, and in particular to a vertical axis wind power generation device which is easy to install. Background Art

[0002] As a type of wind power generation, the vertical axis wind turbine has a simple structural design, can be started by a breeze, and does not need to be adjusted to the wind when the wind direction changes. The noise generated is relatively small. Therefore, it can be used in urban public lighting, residential areas and other fields where horizontal axis wind turbines are difficult to use.

[0003] The Chinese patent application with patent number CN118137936B: A wind-solar energy storage device and a pole tower, which discloses a wind-solar energy storage device, including a loading and unloading part, a wind turbine installation part, and a photovoltaic installation part; the loading and unloading part includes a locking part and a rotating part, the locking part is fixed to the outside world, and the rotating part has detachable wind power generation equipment and photovoltaic power generation equipment on both sides, which can be rotated around the pole tower along the locking part, and the photovoltaic components of the photovoltaic power generation equipment are caused by the wind to cause the rotating parts to rotate, always parallel to the wind direction, reducing the impact of wind on the photovoltaic components, and at the same time, the wind turbine components of the wind power generation equipment always face the wind to maintain high-efficiency wind utilization. It also provides a pole tower with the wind-solar energy storage device, which can realize an independent microgrid system for self-production and self-use, greatly reducing the cost of circuit laying.

[0004] In the technical solution recorded in the above patent document, a loading and unloading part is provided outside the main body of the wind turbine generator to install the wind turbine generator at any position on a pole tower such as a street lamp, and then a tail wing is provided to balance the weight of the wind turbine generator placed on one side of the pole tower. Although this facilitates the installation of the horizontal axis generator, it also increases the structure of the horizontal axis generator and relatively increases the volume of the power generation system. It is not suitable for vertical axis generators. If a connecting rod is extended from the vertical axis generator to set the loading and unloading part, due to the different structure of the vertical axis generator using wind force, it rotates around its own axis and has a larger volume. The torque generated will be more complicated than that of the horizontal axis generator, and the strength requirements of the connection structure are high. If the loading and unloading part is installed, the balancing difficulty of the tail wing on the other side used for balancing will increase, and the entire system will be more bloated.

[0005] Therefore, in the prior art, vertical axis wind turbines are usually installed directly on the pole body to solve the above problems, but they need to be produced in a factory. Otherwise, they can only be installed on the top of existing poles such as street lights and billboards through flanges, which is extremely inconvenient to install. When installed on the top, the center of gravity of the pole tower will be increased. The higher the pole tower is, the greater the burden on the pole body is. In addition, for pole towers such as electric poles that cannot be installed on the top, they cannot be effectively utilized.

[0006] In summary, there is an urgent need for a vertical axis wind power generation device that can be flexibly installed at any position on a tower of any specifications. Summary of the invention

[0007] In view of the installation problems of the vertical axis wind turbine generator and the existing tower in the prior art, a vertical axis wind turbine generator device which is easy to install is proposed.

[0008] In order to solve the above problems, the technical solution of the present invention is:

[0009] A vertical axis wind power generation device that is easy to install includes a mounting frame, a stator disk, a rotor disk, and fan blades. The mounting frame includes a plurality of fixed brackets, and the fixed brackets are detachably fixed to the mounted parts. Split bearings are provided at both axial ends of the mounting frame; the stator disk includes a plurality of stator brackets, and the stator brackets are connected to the mounting frame, wherein the stator brackets are provided with winding coils that can generate induced current; the rotor disk includes a plurality of rotor sub-disks, and the rotor sub-disks are connected to the split bearings; wherein a magnetic component that provides a magnetic field for the winding coils is provided in the rotor sub-disks, and the stator disk is sandwiched between the rotor sub-disks; the fan blades are connected to the rotor disk to provide rotational power for the rotor disk.

[0010] As a preferred technical solution, the magnetic component is a permanent magnet block.

[0011] As a preferred technical solution, a magnetic attraction plate is provided in the rotor sub-disk, and the magnetic attraction plate is used to absorb the permanent magnet block.

[0012] As a preferred technical solution, a limit block is provided between each of the permanent magnetic blocks on the magnetic attraction plate.

[0013] As a preferred technical solution, the fixed bracket is detachably connected to a plurality of the stator brackets.

[0014] As a preferred technical solution, the fan blades are detachably connected to the rotor disk.

[0015] As a preferred technical solution, the mounting frame is detachably connected with an adjustable fixing block, and the adjustable fixing block is connected to the mounted component.

[0016] As a preferred technical solution, there is a gap between the mounting frame and the mounted component.

[0017] Beneficial effects of the present invention:

[0018] The vertical axis wind power generation device that is easy to install described in the present invention can use the existing pole tower as the axis to rotate and generate electricity. Compared with the existing vertical axis wind power generation device, the structure is optimized and the production cost of the rotating shaft is reduced. It includes a mounting frame for supporting the vertical axis wind power generator set, and the mounting frame is composed of a number of fixed brackets that are detachably installed, so that when it is installed with the installed part such as the pole tower, it does not need to be installed from the top of the pole tower, and can be directly buckled on any position of the pole tower, realizing the installation without affecting the normal operation of the equipment installed on the tower pole and without changing the pole tower structure, greatly reducing the installation cost of the wind power generation device. And during installation, a reasonable installation position can be set according to the strength of the installed part to avoid the change of the center of gravity and reduce the stability of the installed part. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional schematic diagram of a vertical axis wind power generation device that is easy to install according to the present invention;

[0020] Figure 2 This is an exploded schematic diagram of a vertical axis wind power generation device that is easy to install according to the present invention;

[0021] Figure 3 This is a schematic diagram of the mounting frame of the present invention;

[0022] Figure 4 This is a schematic diagram of the cooperation between the split bearing and the rotor disk of the present invention;

[0023] Figure 5 This is a schematic diagram of the stator disc of the present invention;

[0024] Figure 6 This is a schematic diagram of the rotor discs of the present invention;

[0025] Figure 7 This is a schematic diagram of the connection between the rotor sub-disc, the magnetic attraction plate and the permanent magnet block according to the present invention;

[0026] Figure 8 This is a schematic diagram of the cooperation between the vertical axis wind power generation device and the installed parts that are easy to install according to the present invention;

[0027] Fig. 9 This is a schematic diagram of the staggered connection between the magnetic attraction plates and the rotor sub-disks of the present invention;

[0028] Fig.10 It is a schematic diagram of the cooperation between the fixing bracket and the adjustable fixing block of the present invention.

[0029] The reference numerals and components involved in the drawings are as follows:

[0030] 1. Mounting frame; 11. Fixing bracket; 111. Inner arc wall; 112. Outer arc wall;

[0031] 2. stator plate; 21. stator bracket; 211. connecting part; 212. winding frame;

[0032] 3. rotor disk; 31. rotor sub-disk; 311. permanent magnet block; 312. magnetic plate; 313. limit block;

[0033] 4. fan blade; 41. blade; 42. connecting rod;

[0034] 5. Split bearings;

[0035] 6. Adjustable fixed block;

[0036] 7. Clearance;

[0037] 8. Parts to be installed. DETAILED DESCRIPTION

[0038] 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.

[0039] In order to better understand the easy-to-install vertical axis wind power generation device provided by the present embodiment, the following first briefly introduces the existing vertical axis wind power generation device. In the existing scheme, on some special towers, the fan blades of the vertical axis wind turbine are connected to the shaft rod, and the fan blades drive the shaft rod to rotate, and then the shaft rod drives the generator at one end to rotate to generate electricity. The fan is installed by sleeve connection at the top of the tower. Similarly, for the brushless motor, it is also fixed to the top of the tower through a flange. Especially when the vertical axis wind turbine is installed on the existing pole towers such as street lamps, billboard poles, electric poles, signal towers, etc., it is limited by the objects such as the street lamp arms, cross arms, and transmitting devices extending therefrom, resulting in the inability to achieve the method of sleeve connection from the top. It is necessary to redesign and install the pole tower, or modify the pole tower structure. In particular, if the pole tower is modified on site, the pole tower must be cut, or returned to the factory for modification. During the modification period, the installation project is large, the cycle is long, the total project cost increases, and the facility cannot be operated; therefore, it is difficult to flexibly install the vertical axis wind turbine on the existing pole tower.

[0040] Example 1, see attached Figure 1 , Attachment Figure 2 , Figure 1 This is a three-dimensional schematic diagram of a vertical axis wind power generation device that is easy to install according to the present invention. Figure 2 The exploded schematic diagram of a vertical axis wind power generation device that is easy to install according to the present invention; the vertical axis wind power generation device that is easy to install comprises a mounting frame 1, a stator disk 2, a rotor disk 3, and fan blades 4.

[0041] Please see attached Figure 3 , Figure 3 Schematic diagram of the mounting frame of the present invention; the mounting frame 1 is composed of two semicircular fixing brackets 11 as a whole. Preferably, the fixing bracket 11 includes an inner arc wall 111, an outer arc wall 112 and a plurality of reinforcing plates connecting the inner arc wall 111 and the outer arc wall 112, which not only ensures the structural strength but also realizes the lightweight structure. The inner arc wall 111 is adapted to the outer wall of the tower, and the outer arc wall 112 is used to install the stator disk 2; please refer to the attached Figure 4 , Figure 4 It is a schematic diagram of the cooperation between the split bearing and the rotor disk of the present invention; split bearings 5 ​​are provided at both ends of the axis of the mounting frame 1, and the split bearings 5 ​​are axially split annular bearings at the upper and lower ends of the mounting frame 1. In some preferred embodiments, the number of the fixed brackets 11 constituting the mounting frame 1 can also be 3 or more. The mounting frame 1 is used to support a vertical axis wind turbine generator set. When it is installed with a mounted part 8 such as a pole tower, it does not need to be installed from the top of the pole tower. It can be directly buckled on any position of the pole tower, and is particularly suitable for installation on a pole tower with obstacles such as street lights on the top of the roadside, thereby greatly reducing the installation cost of the wind turbine. It should be noted that the split bearing 5 refers to a split bearing that is at least axially divided into two halves, which is used to install the rotor disk 3 and can reduce the resistance of the rotor disk 3 when rotating relative to the mounting frame 1 and other structures. It should be understood that when the split bearing 5 is a circular guide rail composed of two semi-circular annular guide rails, the rotor disk 3 is provided with a connecting piece that matches the guide rail groove on the circular guide rail, and the two can also achieve relative movement in a sliding or rolling manner. And the active connection of one component on another component is a prior art, which will not be described in detail here.

[0042] Please see attached Figure 5 , Figure 5 Schematic diagram of the stator disk of the present invention; the stator disk 2 is composed of a plurality of stator brackets 21 mounted around the mounting frame 1. Specifically, the stator bracket 21 includes a connecting portion 211 and a winding frame 212. The connecting portion 211 can be connected to the outer arc wall 112 of the mounting frame 1 by bolts, and the winding frame 212 is wound with a coil winding for induction power generation. It should be noted that in this embodiment, each stator bracket 21 is detachably connected to the outer arc wall 112. When a stator bracket 21 fails, the corresponding stator bracket 21 can be replaced accordingly, reducing the maintenance cost. In some embodiments, the stator bracket 21 and the fixed bracket 11 are an integrated structure, and the integrated structure simplifies the installation steps.

[0043] Please see attached Figure 6 , Figure 6Schematic diagram of the rotor sub-disc of the present invention; the rotor disk 3 is composed of a plurality of rotor sub-discs 31. Specifically, the rotor disk 3 is a circular hollow disk-shaped structure, which is axially symmetrically divided and then radially symmetrically divided to obtain four groups of rotor sub-discs 31, that is, the rotor sub-disc 31 is a quarter of the rotor disk 3; correspondingly, each rotor sub-disc 31 is provided with a magnetic component, specifically, the magnetic component is a permanent magnet block 311, see the attached Figure 7 , Figure 7 The figure is a schematic diagram of the connection between the rotor sub-disk, the magnetic plate and the permanent magnet block of the present invention. A semi-circular magnetic plate 312 is provided in the rotor sub-disk 31, and permanent magnet blocks 311 for providing a magnetic field are equidistantly adsorbed on the magnetic plate 312. A limit block 313 fixed on the magnetic plate 312 is provided between each permanent magnet block 311 to limit the displacement of the permanent magnet block 311 relative to the magnetic plate 312; the rotor sub-disk 31 is connected to the split bearing 5 at a position close to the axis. The magnetic plate 312 is a magnetic material, which refers to a material that can be used to absorb the permanent magnet block 311, such as iron, silicon steel sheet and other magnetic materials. Since the magnetic plate 312 is provided, the body of the rotor disk 3 can be made of non-magnetic materials with high structural strength and light weight, which reduces the supporting pressure of the mounting frame 1; in some embodiments, the body of the rotor sub-disk 31 is made of magnetic material and provides a platform for installing the permanent magnet block 311, and the permanent magnet block 311 is directly adsorbed on the rotor sub-disk 31 as an integrated design; preferably, the permanent magnet block 311 can also be connected in the non-magnetic material using a snap-on structure, without relying on magnetic adsorption connection. In some embodiments, the rotor disk 3 can also be two groups of rotor sub-disks 31 divided axially symmetrically, and the detachable connection between each rotor sub-disk 31 and the split bearing 5 also facilitates the maintenance of the device. It should be noted that the magnetic component can also be a coil that provides a magnetic field, and its application in the generator is a prior art.

[0044] Please refer again to the attached Figure 1The fan blades 4 are provided with five groups and are arranged around the central axis of the rotor disk 3. Specifically, the fan blades 4 include blades 41 and connecting rods 42. The blades 41 can rotate around the axis of the rotor disk 3 under the action of wind, and the connecting rods 42 are used to connect with the rotor disk 3. The use of the present invention is as follows: two fixed brackets 11 are sleeved on the outer wall of the mounted part 8, i.e., the pole tower. In this embodiment, the pole tower is a cylindrical pole tower. The two fixed brackets 11 are fastened by bolts, and their inner ring walls are combined to form a complete circular ring clamped on the pole tower, which is used to provide support for components such as the rotor disk 3 and the stator disk 2. When the pole tower is a conical shape with a small bottom and a large top, the inner ring wall is surrounded by a truncated cone shape and is adapted and fixed to the pole tower; similarly, the connecting portion 211 of each stator bracket 21 is fixed to the outer arc wall 112 of the mounting frame 1 by bolts, and each stator bracket 21 surrounds the outer arc wall 112 of the mounting frame 1 to form a disc-shaped stator disk 2; a semi-circular magnetic attraction plate 312 is fixed to the rotor sub-disk 31 by bolts, and the magnetic attraction plate 312 uses magnetic attraction to absorb the permanent magnet block 311 for providing a magnetic field, and the permanent magnet blocks 311 are spaced apart by limit blocks 313 The rotor sub-disc 31 is isolated and covered on the stator disk 2, wherein the permanent magnet block 311 in the rotor sub-disc 31 is opposite to the winding frame 212 on the stator bracket 21 with the coil wound thereon, and the permanent magnet block 311 in the lower rotor sub-disc 31 is opposite to the permanent magnet block 311 in the upper rotor sub-disc 31 through the winding frame 212, and one side of the rotor sub-disc 31 is connected to the split bearing 5, such as providing a slot on the outer ring of the bearing, and providing a snap-fitting piece that is adapted to the slot on the rotor sub-disc 31. In some embodiments, the rotor sub-disc 31 can also be fixedly connected to the outer ring of the bearing by bolts. At the same time, the four groups of rotor sub-discs 31 are connected to each other by bolts to form a rotor disk 3 that wraps the entire stator disk 2. The rotor disk 3 rotates around the pole tower through the split bearing 5, and generates relative motion with the stator disk 2 to generate an induced current.

[0045] Please see attached Figure 8 , Figure 8Schematic diagram of the cooperation between the easy-to-install vertical axis wind power generation device and the installed part of the present invention; the method of using the easy-to-install vertical axis wind power generation device of this embodiment is as follows: first, a fixing bracket 11 adapted to the pole tower is engaged at a suitable installation position on the pole tower, and two fixing brackets 11 are fastened with bolts to form the mounting frame 1, and preferably, the mounting frame 1 can also be welded and fixed to the pole tower; then, the split bearing 5 is sleeved on both ends of the mounting frame 1, such as fixing the inner ring of the bearing on the mounting frame 1, and the stator bracket 21 with the winding coil is installed on the outer arc wall 11 of the mounting frame 1 2; each rotor sub-disc 31 is installed on the split bearing 5, and the permanent magnet block 311 therein covers the top of the winding frame 212 wound with the coil wire group. Preferably, the permanent magnet blocks 311 are installed on the upper and lower sides of the winding frame 212; the fan blades 4 of the vertical axis wind power generation device are installed on the rotor disk 3. Under the push of the wind on the fan blades 4, the fan blades 4 drive the rotor disk 3 to rotate relative to the stator disk 2, so as to generate wind power. It should be understood that its power generation principle and the power generation system for collecting electricity, the various components and the electrical connections between the components, etc. are existing technologies and will not be described in detail here.

[0046] During installation, since the corresponding components are split components, there will be a seam between the two components after docking. The preferred installation method is to install across the seams on the adjacent components when covering the installation on the adjacent components. For example, when installing the split bearing 5, one section of the inner ring of one of the half shafts of the split bearing 5 is fixed to one of the fixed brackets 11, and the other section is fixed to the other fixed bracket 11, so as to achieve staggered installation, further strengthen the overall fixing strength, and ensure the stability of operation; similarly, this installation method can also be adopted when installing the rotor sub-disk 31 and the outer ring of the split bearing 5, as shown in the attached figure. Fig. 9 A schematic diagram showing the staggered connection between the magnetic attraction plates and the rotor sub-disks of the present invention.

[0047] It should be noted that the easy-to-install vertical axis wind power generation device described in the present invention realizes the use of the existing mounted part as the axis for rotating power generation, and can be directly installed at any position of the mounted part 8 without changing the structure of the original mounted part 8. For example, it can be directly installed in the middle and lower part of the street light pole without paying attention to obstacles such as the street lights on the top of the street light pole, thereby avoiding excessive changes in the center of gravity of the street light pole and reducing the strength requirements of the street light pole. That is, it is flexible to use and can also be applied to mounted parts 8 such as billboard poles, electric poles, and signal towers. It has a wide range of applications and does not require a special mounting pole to be provided for the easy-to-install vertical axis wind power generation device described in the present invention, thereby reducing the installation cost.

[0048] In the above embodiment, the cooperation between the permanent magnet block 311 and the winding coil on the winding frame 212 is radial cooperation. In some embodiments, the cooperation between the magnetic block and the winding coil on the winding frame 212 can also be axial cooperation. For example, the coil on the winding frame 212 is wound around the diameter direction perpendicular to the rotation axis. Correspondingly, the magnetic attraction plate 312 is an annular plate installed facing the rotating axis. When installed, one end of it is fixed on the upper rotor sub-disk 31, and the other end is fixed on the lower rotor sub-disk 31 by bolts. It should be understood that axial winding power generation, radial winding power generation and other deformations are all within the protection scope of the present invention.

[0049] In Example 2, although the specifications of public facilities such as poles and towers such as street lights in the same area are consistent, it is possible to adaptively produce mounting frames 1 that are compatible with the corresponding poles and towers for installation; however, when installing on poles and towers with a small number and different specifications, it is necessary to produce specific mounting frames 1 accordingly, resulting in a lack of versatility.

[0050] Please see attached Fig.10 , Fig.10 Schematic diagram of the cooperation between the fixing bracket and the adjustable fixing block of the present invention; therefore, in order to solve the above-mentioned problem, in this embodiment, the mounting member is fixed to the mounted member 8 by a plurality of adjustable fixing blocks 6, the adjustable fixing blocks 6 are T-shaped plates, and a plurality of the adjustable fixing blocks 6 surround the mounted member 8 for fixing. When the diameter of the mounting position is small, the number of the adjustable fixing blocks 6 used is small, and when the diameter of the mounting position is large, the number of the adjustable fixing blocks 6 used is relatively large. At the same time, a plurality of bolt holes are provided on one end of the L-shaped plate for connecting the mounting frame 1, and the mounting frame 1 is provided with a structure adapted to be connected thereto, and the mounting frame 1 is connected to the adjusting member 8. The installation position of the adjustable fixing block 6 depends on the difference between the inner circle diameter of the mounting frame 1 and the diameter of the mounted part 8, that is, the larger the inner circle diameter of the mounting frame 1 is than that of the mounted part 8, the larger the gap 7 between the mounting frame 1 and the outer wall of the mounted part 8 after installation, and the gap 7 can be passed through by the wiring harness, providing a wiring channel for the wiring harness, further increasing the convenience of installation. It should be noted that the adjustable fixing block 6 and the mounted part 8 can be connected and fixed by welding, bolting or the like; the adjustable fixing block 6 is used as a support member to provide an installation margin, so that the generator of the present invention of the same specification can be installed on the mounted parts 8 of different diameters.

[0051] Preferably, in some embodiments, the structure of the mounting frame 1 may be different from the structure of the mounting frame 1 in the above-mentioned embodiment, such as the mounting frame 1 may be a plate-like structure with two groups of semicircular rings and bolt holes, and the corresponding stator bracket 21 and the split bearing 5 may also be connected to the mounting frame 1 by bolts. It should be noted that, similarly, the stator bracket 21 is composed of a winding coil and a structure for fixing the winding coil. In different embodiments, the structure and method for connecting and fixing the winding coil may also be different, which will not be described in detail here, and all are within the protection scope of the present invention.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the principle of the present invention. These improvements and supplements should also be regarded as the scope of protection of the present invention.

Claims

1. A vertical axis wind power generation device that is easy to install, comprising a mounting frame, a stator disk, a rotor disk, and a fan blade, characterized in that: The mounting frame includes a plurality of fixing brackets, the fixing brackets are detachably fixed to the mounted member, and split bearings are provided at both axial ends of the mounting frame; The stator disc comprises a plurality of stator brackets, and the stator brackets are connected to the mounting frame, wherein the stator brackets are provided with winding coils capable of generating induced current; The rotor disk comprises a plurality of rotor sub-disks, and the rotor sub-disks are connected to the split bearing; wherein a magnetic assembly for providing a magnetic field for the winding coil is arranged in the rotor sub-disks, and the stator disk is sandwiched between the rotor sub-disks; The fan blades are connected to the rotor disk and are used to provide rotational power for the rotor disk.

2. The easy-to-install vertical axis wind power generation device according to claim 1, characterized in that: The magnetic component is a permanent magnet block.

3. The easy-to-install vertical axis wind power generation device according to claim 2, characterized in that: A magnetic attraction plate is provided in the rotor sub-disk, and the magnetic attraction plate is used to absorb the permanent magnet block.

4. The easy-to-install vertical axis wind power generation device according to claim 3, characterized in that: Limiting blocks are arranged between the permanent magnetic blocks on the magnetic attraction plate.

5. The easy-to-install vertical axis wind power generation device according to claim 1, characterized in that: The fixing bracket is detachably connected to a plurality of the stator brackets.

6. The easy-to-install vertical axis wind power generation device according to claim 1, characterized in that: The fan blades are detachably connected to the rotor disk.

7. The easy-to-install vertical axis wind power generation device according to claim 1, characterized in that: The mounting frame is detachably connected with an adjustable fixing block, and the adjustable fixing block is connected to the mounted component.

8. The easy-to-install vertical axis wind power generation device according to claim 7, characterized in that: There is a gap between the mounting frame and the mounted component, and the gap is used for cables to pass through.

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