A primary and secondary fusion complete ring network box with heat dissipation function

Abstract

The utility model relates to a power cabinet complete technology field, especially a primary and secondary fusion complete ring net box with heat dissipation function, including box, sliding mechanism and the air guide shell of the inner groove setting of corresponding box, sliding mechanism from the front side box door of box sliding installation to the inner groove back wall of box, the air guide shell has set up equipment placing mouth corresponding front side box door, and electrical equipment is installed in the inner groove of air guide shell through equipment placing mouth, and the air guide shell is embeddedly installed to the front of sliding mechanism along the inner groove of box, and the back of air guide shell and the front of sliding mechanism are pasted, and front side box door and equipment placing mouth coincide, the air guide shell is hollow structure, and the bottom outside wall of air guide shell is equipped with at least one air inlet leading to the outside of box, and the inner groove wall of air guide shell is equipped with a plurality of heat dissipation air inlets, and the top wall of air guide shell is equipped with a plurality of air outlets leading to the outside of box, which solves the heat dissipation problem, effectively prevents the invasion of water vapor and floating dust, and guarantees convenient maintenance.

Description

Technical Field

[0001] This utility model relates to the field of complete sets of power cabinets, and in particular to a primary and secondary integrated ring network box with heat dissipation function. Background Technology

[0002] Current integrated ring main units, which require the integration of numerous related electrical devices on both the primary and secondary sides, typically involve installing multiple partitions inside the unit in layers. Once installed, these electrical devices are fixed together with the unit. For reasons of waterproofing and dustproofing (especially when ventilation openings are provided in the unit, the interior is easily invaded by moisture and dust), the ring main unit is usually enclosed. This results in the heat generated by the numerous electrical devices accumulating inside the enclosed unit, preventing effective heat dissipation.

[0003] In addition, due to the large number of electrical devices inside the box, maintenance is difficult. To facilitate maintenance, a sliding frame is usually added inside the ring network box, and many electrical devices are installed on the sliding frame so that the sliding frame can be pulled out when the electrical devices are being maintained. However, this results in two layers of shells, the outer shell of the box and the side wall of the sliding frame, blocking the heat dissipation of the electrical devices, making heat dissipation even more difficult. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this invention is to propose a primary and secondary integrated ring mesh box with heat dissipation function, which solves the heat dissipation problem, effectively prevents the intrusion of water vapor and floating dust, and ensures convenient maintenance.

[0005] To achieve this objective, the present invention adopts the following technical solution: A primary and secondary integrated ring mesh box with heat dissipation function includes a box body, a sliding mechanism, and an air guide shell corresponding to the inner groove of the box body; the sliding mechanism is slidably installed from the front door of the box body to the rear wall of the inner groove of the box body; The air guide shell has an equipment placement opening corresponding to the front box door, and electrical equipment is installed in the inner groove of the air guide shell through the equipment placement opening; The air guide shell is embedded and installed in front of the sliding mechanism along the inner groove of the box body. The back of the air guide shell is in contact with the front of the sliding mechanism. The front box door and the equipment placement port coincide. The air guide shell is a hollow structure. The bottom outer wall of the air guide shell is provided with at least one air inlet leading to the outside of the box. The inner groove wall of the air guide shell is provided with multiple heat dissipation vents. The top wall of the air guide shell is provided with multiple air outlets leading to the outside of the box.

[0006] Furthermore, at least one sliding guide rail is provided at the upper left, upper right, lower left, and lower right corners of the inner groove of the box, respectively, from the front door of the box to the rear wall of the inner groove of the box. The sliding mechanism includes a back plate and sliding members corresponding to the sliding guide rails; the sliding members are disposed on the side of the back plate, and the sliding members slide along the sliding guide rails from the front door of the box to the inner groove rear wall of the box body, and the back of the back plate is in contact with the inner groove rear wall of the box body.

[0007] Furthermore, the sliding mechanism also includes a drag bar; one end of the drag bar is fixedly connected to the side of the backing plate, and the other end of the drag bar extends along the sliding guide rail to the front door of the box; The other end of the tow bar is provided with a dragging part.

[0008] Furthermore, the upper left, upper right, lower left, and lower right corners of the air guide shell are recessed to avoid the sliding guide rail and the drag bar, respectively; The bottom of the box body is provided with a box body air inlet corresponding to the air inlet, and the air inlet pipe passes through the box body air inlet and is connected to the air inlet; The air outlet is located in the center of the top wall of the air guide shell, and the top wall of the box body has a box body air outlet corresponding to the air outlet. The air outlet and the box body air outlet are fitted together one-to-one.

[0009] Furthermore, the left and right outer walls of the middle part of the air guide shell are respectively provided with at least one auxiliary heat dissipation air outlet, and the side wall of the box body is provided with a box body heat dissipation air outlet corresponding to the auxiliary heat dissipation air outlet. The auxiliary heat dissipation air outlet and the box body heat dissipation air outlet are fitted together in a one-to-one correspondence. The outer side of the enclosure is provided with a downward-facing protective cover corresponding to the heat dissipation vent of the enclosure.

[0010] Furthermore, multiple heat dissipation vents are distributed from top to bottom on the inner groove sidewall of the air guide shell, and the heat dissipation vents are not at the same height as the air inlet and the auxiliary heat dissipation outlet.

[0011] Furthermore, the sliding guide rail is a groove or a roller track; when the sliding guide rail is a groove, the corresponding sliding member is a slider; when the sliding guide rail is a roller track, the corresponding sliding member is a roller. The sliding guide rails are grooves at the upper left and upper right corners of the inner groove of the box body; At the lower left and lower right corners of the inner groove of the box, there must be a sliding guide rail that serves as the roller track, and it is located on the bottom surface of the inner groove of the box.

[0012] Furthermore, the bottom shell of the air guide shell is provided with an inlet cable passage, and the bottom wall of the housing is provided with a housing inlet cable passage corresponding to the inlet cable passage.

[0013] Furthermore, the backing plate is a grid plate.

[0014] Furthermore, the partition plate installed in the inner groove of the air guide shell is a grid plate.

[0015] The technical solution provided by this utility model can include the following beneficial effects: An air guide shell is added inside the enclosure. Utilizing the hollow structure of the air guide shell, an air inlet leading to the outside of the enclosure is provided on the bottom outer wall of the air guide shell. Cooling airflow enters from the air inlet, flows along the hollow shell wall, and is guided to multiple heat dissipation vents opened on the inner groove wall of the air guide shell. The airflow exits from the heat dissipation vents, cooling the electrical equipment installed in the inner groove of the air guide shell. The resulting rising hot airflow exits from the top wall of the air guide shell through multiple air outlets, thus fully cooling and dissipating heat from the electrical equipment installed inside the ring main unit. More importantly, by utilizing the hollow shell for airflow guidance and heat dissipation, when water vapor and dust are introduced through the air inlet, they can be trapped in the hollow shell (equivalent to a filtration effect), preventing them from intruding into the electrical equipment. Furthermore, the rising hot airflow exiting from the air outlet can prevent water vapor and dust from entering the enclosure. Moreover, the electrical equipment is separated from the outside by the double-layered walls of the air guide shell and the enclosure body, making it even more difficult for water vapor and dust to enter through any gaps.

[0016] Based on the addition of an air guide shell and the installation of electrical equipment in the inner groove of the air guide shell, a sliding mechanism is provided between the back of the air guide shell and the rear wall of the inner groove of the box body to facilitate the maintenance of the air guide shell and electrical equipment. The air guide shell can be pushed out of the box body for maintenance by sliding the air guide shell to the front door of the box body using the sliding mechanism. At this time, the air guide shell can be moved at will (after the box body is installed, it is usually fixed to the foundation and cannot be moved), which facilitates the subsequent disassembly and maintenance of electrical equipment. Attached Figure Description

[0017] Figure 1 This is a partial assembly drawing of a primary and secondary integrated ring mesh box with heat dissipation function, according to one embodiment of this utility model.

[0018] Figure 2 Is it like this? Figure 1 An enlarged view of point A shown.

[0019] Figure 3 Is it like this? Figure 1 A magnified view of point B shown.

[0020] The components include: housing 1, sliding mechanism 2, air guide shell 3, front door 11, equipment placement port 31, air inlet 33, heat dissipation vent 32, air outlet 34, sliding guide rail 21, back plate 22, sliding component 23, drag bar 24, housing air inlet 12, housing air outlet 13, auxiliary heat dissipation vent 35, housing heat dissipation vent 14, protective cover 15, slide rail 211, roller track 212, cable entry port 36, and housing cable entry port 16. Detailed Implementation

[0021] 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 are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of embodiments of this utility model, 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0024] The following is combined Figures 1 to 3 This invention describes a primary and secondary integrated ring network box with heat dissipation function according to an embodiment of the present invention.

[0025] A primary and secondary integrated ring mesh box with heat dissipation function includes a box body 1, a sliding mechanism 2, and an air guide shell 3 corresponding to the inner groove of the box body 1; the sliding mechanism 2 is slidably installed from the front box door 11 of the box body 1 to the rear wall of the inner groove of the box body 1. The air guide shell 3 has an equipment placement port 31 corresponding to the front box door 11. Electrical equipment is installed in the inner groove of the air guide shell 3 through the equipment placement port 31. The air guide shell 3 is embedded and installed in front of the sliding mechanism 2 along the inner groove of the box body 1. The back of the air guide shell 3 is in contact with the front of the sliding mechanism 2, and the front box door 11 and the equipment placement port 31 coincide. The air guide shell 3 is a hollow structure. The bottom outer wall of the air guide shell 3 is provided with at least one air inlet 33 leading to the outside of the box 1. The inner groove wall of the air guide shell 3 is provided with multiple heat dissipation vents 32. The top wall of the air guide shell 3 is provided with multiple air outlets 34 leading to the outside of the box 1.

[0026] This utility model proposes a preferred embodiment of a primary and secondary integrated ring network box with heat dissipation function, such as... Figure 1 As shown, an air guide shell 3 is added inside the housing 1. Utilizing the hollow structure of the air guide shell 3 (note that the air guide shell 3 is not absolutely hollow; for example, a high-rigidity material is used for the outer shell, and multiple rigid small pads are arranged inside the shell and fixedly connected to the outer shell to form a hollow structure, while ensuring that the air guide shell 3 will not deform after the electrical equipment is installed), an air inlet 33 is provided on the bottom outer wall of the air guide shell 3, leading to the outside of the housing 1. Cooling airflow enters from the air inlet 33, flows along the hollow shell wall of the air guide shell 3, and is guided to multiple heat dissipation vents 32 opened in the inner groove wall of the air guide shell 3. The airflow flows out from the heat dissipation vents 32, cooling the electrical equipment installed in the inner groove of the air guide shell 3. The resulting rising hot airflow is discharged from the housing 1 through multiple air outlets 34 opened in the top wall of the air guide shell 3, thereby fully cooling and dissipating heat from the electrical equipment installed inside the ring network box. More importantly, by utilizing the hollow shell for airflow and heat dissipation, when air is introduced into the air inlet 33, moisture and dust can be trapped inside the hollow shell (equivalent to a filtration effect), preventing them from entering the electrical equipment. In addition, the air outlet discharges rising hot air, which can prevent moisture and dust from entering the housing 1. Furthermore, the electrical equipment is separated from the outside world by the double-layered walls of the air guide shell 3 and the housing 1, making it even more difficult for moisture and dust to enter from any gaps.

[0027] Based on the addition of the air guide shell 3 and the installation of electrical equipment in the inner groove of the air guide shell 3, in order to facilitate the maintenance of the air guide shell 3 and the electrical equipment, a sliding mechanism 2 is provided between the back of the air guide shell 3 and the rear wall of the inner groove of the box 1, which is slidably installed in the box 1. The air guide shell 3 can be pushed out of the box 1 for maintenance by sliding the sliding mechanism 2 to the front door 11. At this time, the air guide shell 3 can be moved at will (after the box 1 is installed, it is usually fixed to the foundation and cannot be moved), which facilitates the subsequent disassembly and maintenance of the electrical equipment.

[0028] Furthermore, at the upper left, upper right, lower left and lower right corners of the inner groove of the box body 1, at least one sliding guide rail 21 is provided from the front box door 11 to the rear wall of the inner groove of the box body 1. The sliding mechanism 2 includes a back plate 22 and a sliding member 23 corresponding to the sliding guide rail 21. The sliding member 23 is disposed on the side of the back plate 22. The sliding member 23 slides along the sliding guide rail 21 from the front door 11 to the rear wall of the inner groove of the box body 1. The back of the back plate 22 is in contact with the rear wall of the inner groove of the box body 1.

[0029] In this embodiment, as Figure 2 and 3 As shown, in order to reduce the space occupied by the sliding mechanism 2 inside the housing 1, the sliding mechanism 2 pushes the air guide shell 3 by pushing with the back plate 22 (the back plate 22 occupies only a small amount of longitudinal space), and the sliding guide rail 21 is set at the four corners of the housing 1. Then, the sliding member 23 can be used to slide in cooperation with the sliding guide rail 21 to realize the pushing function.

[0030] It should be noted that the driving method of the sliding mechanism 2 is not limited. It can be driven by an electric sliding guide rail 21 and a sliding member 23, or a mechanical structure can be designed to push the back plate 22 to slide.

[0031] Furthermore, the sliding mechanism 2 also includes a drag bar 24; one end of the drag bar 24 is fixedly connected to the side of the back plate 22, and the other end of the drag bar 24 extends along the sliding guide rail 21 to the front door 11 of the box. The other end of the tow bar 24 is provided with a dragging part.

[0032] In this embodiment, one of the driving methods for sliding the back plate 22 can be to drag it with the drag bar 24 to pull the air guide shell 3 out of the front box door 11. The drag bar 24 preferably extends along the sliding guide rail 21 to the front box door 11 and is arranged in parallel with the sliding guide rail 21 at the four corners of the box body 1 to reduce the space occupied inside the box body 1. In order to facilitate dragging, it is preferable to provide a dragging part (such as a vertical bar, ring buckle, etc.) at the other end of the drag bar 24 to facilitate force application.

[0033] Furthermore, the upper left, upper right, lower left and lower right corners of the air guide shell 3 are recessed to avoid the sliding guide rail 21 and the drag bar 24, respectively; An air inlet 12 is provided at the bottom of the housing 1 corresponding to the air inlet 33, and the air inlet pipe passes through the air inlet 12 and connects with the air inlet 33. The air outlet 34 is located in the center of the top wall of the air guide shell 3. The top wall of the box body 1 is provided with the box body air outlet 13 corresponding to the air outlet 34. The air outlet 34 and the box body air outlet 13 are fitted together one by one.

[0034] In this embodiment, when sliding guide rails 21 and drag rods 24 are provided at the four corners of the inner groove of the box 1, the air guide shell 3 should be recessed accordingly to avoid them. Based on this, the air inlet 33 and the shell wall of the box 1 are not in contact at the corners, and the air inlet 33 is usually located on the left and right sides of the box 1. Therefore, the air inlet 22 and the box air inlet 12 are mostly not in contact. Therefore, it is preferable that the air inlet pipe passes through the box air inlet 12 and connects with the air inlet 22. Then, regardless of whether the air inlet 22 and the box air inlet 12 are in contact, the air can be accurately aligned and the water vapor and dust can be effectively prevented from entering the box from the air inlet 22.

[0035] In addition, when the air outlet 34 is located in the center of the top wall of the air guide shell 3, the recessed position at the corner of the air guide shell 3 can be avoided, and the air outlet 34 and the air outlet 13 of the box can be aligned and fitted together, so there is no need to install a duct for air diversion.

[0036] Furthermore, the left and right outer walls of the middle part of the air guide shell 3 are respectively provided with at least one auxiliary heat dissipation air outlet 35, and the side wall of the box body 1 is provided with a box body heat dissipation air outlet 14 corresponding to the auxiliary heat dissipation air outlet 35. The auxiliary heat dissipation air outlet 35 and the box body heat dissipation air outlet 14 are fitted together in a one-to-one correspondence. The outer side of the enclosure 1 is provided with a protective cover 15 with the opening facing downwards, corresponding to the heat dissipation vent 14 of the enclosure.

[0037] In this embodiment, considering that simply discharging the rising hot airflow through the air outlet 34 may result in low heat dissipation efficiency, it is preferable to provide auxiliary heat dissipation air outlets 35 and 14 at the junction of the air guide shell 3 and the side wall of the housing 1, respectively, for auxiliary heat dissipation. More importantly, considering that the hot airflow is discharged from the side, it may not be able to prevent the entry of moisture and dust, it is preferable to provide a downward-facing protective cover 15 on the outside of the housing 1 corresponding to the housing heat dissipation air outlet 14, which can effectively prevent moisture and dust from entering.

[0038] Furthermore, multiple heat dissipation vents 32 are distributed from top to bottom on the inner groove sidewall of the air guide shell 3, and the heat dissipation vents 32 are not at the same height as the air inlet 33 and the auxiliary heat dissipation outlet 35.

[0039] In this embodiment, the air inlet and outlet are basically located on the outer side wall of the air guide shell 3 (only the air outlet 34 penetrates through the inner and outer side walls), while the heat dissipation vents 32 are all located on the inner side wall of the air guide shell 3. This can effectively stagger the airflow, avoid the formation of convection, and directly bring water vapor and dust into the inner groove of the air guide shell 3. For this reason, multiple heat dissipation vents 32 are distributed from top to bottom on the inner groove side wall of the air guide shell 3. This increases the heat dissipation of electrical equipment installed in the inner groove, while setting the heat dissipation vents 32 to be at a different height than the air inlet 33 and the auxiliary heat dissipation outlet 35.

[0040] Furthermore, the sliding guide 21 is either a groove 211 or a roller track 212; when the sliding guide 21 is a groove 211, the corresponding slider 23 is a block; when the sliding guide 21 is a roller track 212, the corresponding slider 23 is a roller. In the upper left and upper right corners of the inner groove of the housing 1, the sliding guide rails 21 are both sliding grooves 211; At the lower left and lower right corners of the inner groove of the box 1, there must be a sliding guide rail 21, which is a roller track 212, and it is set on the bottom surface of the inner groove of the box 1.

[0041] In this embodiment, considering that most of the sliding guide rails 21 provided at the four corners of the housing 1 are for assisting sliding, and more often the sliding groove 211 and the slider are selected to slide together, the sliding guide rail 21 located on the bottom surface of the inner groove of the housing 1 must bear the weight of the entire back plate 22, and its sliding performance must be optimal. It is used as the main sliding structure, so the roller track 212 and the roller are preferred to slide together.

[0042] Furthermore, the bottom shell of the air guide shell 3 is provided with an inlet cable passage 36, and the bottom wall of the housing 1 is provided with a housing inlet cable passage 16 corresponding to the inlet cable passage 36.

[0043] In this embodiment, the ring main unit is usually a bottom-entry box, so an inlet port 36 and a box body inlet port 16 are provided to facilitate the cable passing through into the ring main unit.

[0044] Furthermore, the backing plate 22 is a grid plate.

[0045] In this embodiment, the back plate 22 is set as a grille plate. Firstly, it takes into account the heat dissipation of the air guide shell 3; secondly, it takes into account that the air inlet 33 and the air inlet 12 of the box may be located at the rear. Therefore, the grille plate can facilitate the air inlet pipe to pass through the grille without the need for additional openings.

[0046] Furthermore, the partition plate installed in the inner groove of the air guide shell 3 is a grid plate.

[0047] In this embodiment, when electrical equipment is installed inside the air guide shell 3, it is necessary to install a partition plate for layered installation of electrical equipment. In order to facilitate the rise of hot airflow and discharge from the air outlet 34, it is preferable to use a grid plate for the partition plate, so as to facilitate the flow of cooling airflow from the heat dissipation air outlet 32 ​​between each layer and enhance the heat dissipation between each layer.

[0048] Other components and operations of a primary and secondary integrated ring network box with heat dissipation function according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0049] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A primary and secondary integrated ring network box with heat dissipation function, characterized in that: The device includes a housing, a sliding mechanism, and an air guide shell corresponding to the inner groove of the housing; the sliding mechanism is slidably installed from the front door of the housing to the rear wall of the inner groove of the housing. The air guide shell has an equipment placement opening corresponding to the front box door, and electrical equipment is installed in the inner groove of the air guide shell through the equipment placement opening; The air guide shell is embedded and installed in front of the sliding mechanism along the inner groove of the box body. The back of the air guide shell is in contact with the front of the sliding mechanism. The front box door and the equipment placement port coincide. The air guide shell is a hollow structure. The bottom outer wall of the air guide shell is provided with at least one air inlet leading to the outside of the box. The inner groove wall of the air guide shell is provided with multiple heat dissipation vents. The top wall of the air guide shell is provided with multiple air outlets leading to the outside of the box. At least one sliding guide rail is provided at the upper left, upper right, lower left and lower right corners of the inner groove of the box body, respectively, from the front box door to the rear wall of the inner groove of the box body; The sliding mechanism includes a back plate and sliding members corresponding to the sliding guide rails; the sliding members are disposed on the side of the back plate, and the sliding members slide along the sliding guide rails from the front door of the box to the rear wall of the inner groove of the box body, and the back of the back plate is in contact with the rear wall of the inner groove of the box body; The sliding mechanism also includes a drag bar; one end of the drag bar is fixedly connected to the side of the backing plate, and the other end of the drag bar extends along the sliding guide rail to the front door of the box. The other end of the tow bar is provided with a dragging part; The upper left, upper right, lower left, and lower right corners of the air guide shell are recessed to avoid the sliding guide rail and the drag rod, respectively. The bottom of the box body is provided with a box body air inlet corresponding to the air inlet, and the air inlet pipe passes through the box body air inlet and is connected to the air inlet; The air outlet is located in the center of the top wall of the air guide shell, and the top wall of the box body is opened with a box body air outlet corresponding to the air outlet. The air outlet and the box body air outlet are fitted together one by one. The left and right outer walls of the middle part of the air guide shell are respectively provided with at least one auxiliary heat dissipation air outlet. The side wall of the box body is provided with a box body heat dissipation air outlet corresponding to the auxiliary heat dissipation air outlet. The auxiliary heat dissipation air outlet and the box body heat dissipation air outlet are fitted together in a one-to-one correspondence. The outer side of the enclosure is provided with a downward-facing protective cover corresponding to the heat dissipation vent of the enclosure; Multiple heat dissipation vents are distributed from top to bottom on the inner groove sidewall of the air guide shell, and the heat dissipation vents are not at the same height as the air inlet and the auxiliary heat dissipation outlet; The sliding guide rail is a groove or a roller track; when the sliding guide rail is a groove, the corresponding sliding element is a slider; when the sliding guide rail is a roller track, the corresponding sliding element is a roller. The sliding guide rails are grooves at the upper left and upper right corners of the inner groove of the box body; At the lower left and lower right corners of the inner groove of the box, there must be a sliding guide rail that serves as the roller track, and it is located on the bottom surface of the inner groove of the box. The bottom shell of the air guide shell has an inlet port for cable passage, and the bottom wall of the housing has an inlet port for cable passage corresponding to the inlet port; The backrest is a grid plate; The partition plate installed in the inner groove of the air guide shell is a grid plate.

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