Protective cover and power distribution equipment

Abstract

The utility model relates to the technical field of power distribution facilities, and particularly provides a protective cover and power distribution equipment. The protective cover is applied to the power distribution equipment, the power distribution equipment comprises a shell and a device installation area located in the shell, and the shell is provided with a punching area; the protective cover comprises a cover body and a fixing part connected to the cover body, the cover body is configured to be buckled in a shell of the power distribution equipment, and the fixing part is configured to be connected with the shell; the cover body covers the device installation area and isolates the punching area from the device installation area so as to prevent scrap iron from the punching area from entering the device installation area. The protective cover can cover the device mounting area and is connected with the shell through the fixing part, so that the leakproofness of the protective cover is improved, the device mounting area is isolated from the punching area, and the cover body can block scrap iron from the punching area, so that the scrap iron generated by punching is not prone to entering an electronic device in the device mounting area; therefore, problems of device failure such as electronic device short circuit are reduced, and use reliability of power distribution equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of power distribution facilities, and in particular to a protective cover and power distribution equipment. Background Art

[0002] The interface of the electronic device in the distribution box is used to connect with external devices. When connecting, electricians need to punch holes in the outer shell of the distribution box according to the actual wiring requirements. The shell of the distribution box is usually a metal part. The iron filings generated during the punching process can easily enter the inside of the distribution box, which makes it easy for the iron filings to enter the electronic devices in the distribution box, causing short circuits and other device failures. Utility Model Content

[0003] In view of this, the present application provides a protective cover and a power distribution device, which can shield the iron filings generated when drilling holes in the power distribution device, so that the iron filings are not easy to enter the electronic devices inside the power distribution device.

[0004] The embodiment of the present application provides a protective cover, which is applied to a power distribution device, wherein the power distribution device comprises a housing and a device installation area located in the housing, and the housing has a perforated area. The protective cover comprises a cover body and a fixing portion connected to the cover body, wherein the cover body is configured to be buckled in the housing of the power distribution device, and the fixing portion is configured to be connected to the housing; the cover body is arranged in the device installation area, and isolates the perforated area and the device installation area to prevent iron filings from the perforated area from entering the device installation area.

[0005] In the above-mentioned protective cover, the protective cover can be installed in the device installation area and connected to the outer shell through a fixing part to improve the airtightness of the protective cover and isolate the device installation area from the punching area. When punching holes in the punching area of ​​the outer shell, the cover body can block iron filings from the punching area, so that the iron filings generated by the punching are not easy to enter the electronic devices in the device installation area, thereby reducing device failure problems such as short circuit of electronic devices and improving the reliability of the distribution equipment.

[0006] In at least one embodiment, the normal direction of the shell is defined as a first direction, the cover body includes a first cover portion, a second cover portion and a telescopic portion, the telescopic portion is connected between the first cover portion and the second cover portion, the telescopic portion is telescoped along a second direction, and the second direction is perpendicular to the first direction.

[0007] In the above-mentioned embodiment, the relative positions of the first cover portion and the second cover portion can be changed by extending and retracting the telescopic portion, so that the size of the protective cover as a whole in the second direction is reduced, thereby facilitating the installation of the protective cover in the power distribution equipment. When the protective cover is placed in the power distribution box, the cover area of ​​the protective cover can be increased by extending the telescopic portion, thereby improving the protective effect of the protective cover.

[0008] In at least one embodiment, the telescopic portion includes a plurality of telescopic sections sequentially connected along the second direction, and each telescopic section is telescopic along the second direction.

[0009] In the above embodiment, the multiple telescopic joints can be telescoped according to the different sizes of the shell of the power distribution equipment, thereby increasing the scope of application. The telescopic part formed by the telescopic joints has a simple structure, is easy to install and maintain, and is easy to operate and telescope.

[0010] In at least one embodiment, the normal direction of the shell is defined as a first direction, the cover body includes a first cover portion and a second cover portion, the first cover portion has a first sliding fitting portion, the second cover portion has a second sliding fitting portion, the first sliding fitting portion and the second sliding fitting portion slide and fit along a second direction so that the first cover portion and the second cover portion at least partially overlap in the first direction, and the second direction is perpendicular to the first direction.

[0011] In the above embodiment, the overlapping area of ​​the first cover portion and the second cover portion can be changed by relative sliding of the first cover portion and the second cover portion, thereby changing the cover area of ​​the protective cover, so as to adjust the size of the protective cover according to device installation areas of different sizes.

[0012] In at least one embodiment, the cover body is provided with a support column, and one end of the support column facing the device mounting area abuts against the electronic device and / or the housing in the device mounting area to support the protective cover.

[0013] In the above-mentioned embodiment, one end of the support column can support the cover body, and the other end can support the electronic device or the housing in the device installation area, so that the electronic device or the housing can apply a supporting force to the cover body through the support column, so that the cover body is not easy to collapse and deform into the device installation area, thereby making the electronic device in the device installation area not easy to be damaged by pressure.

[0014] In at least one embodiment, the cover body is provided with a limiting protrusion, which protrudes toward the device installation area. The limiting protrusion has a limiting slope at one end facing the device installation area, and the limiting slope is constructed to abut against the edge of the electronic device in the device installation area.

[0015] In the above-mentioned embodiment, when the cover is installed in the housing, the limiting inclined surface can abut against the electronic device, so that the electronic device applies a supporting force to the cover through the limiting convex portion, so that the cover is not easy to collapse and deform into the device installation area, so that the electronic device in the device installation area is not easy to be damaged by pressure. The inclination of the limiting inclined surface can adapt to electronic devices of different sizes, so that the limiting convex portion can always abut against the edge of the electronic device.

[0016] In at least one embodiment, the protective cover further includes a gripping portion, which is disposed on a side of the cover body facing away from the fixing portion.

[0017] In the above-mentioned embodiment, the provision of the gripping portion facilitates the manipulation of the protective cover when installing or removing the protective cover, which is beneficial to improving the efficiency of installing and removing the protective cover.

[0018] In at least one embodiment, the gripping portion is integrally formed with the cover body and protrudes in a direction away from the fixing portion; or, the gripping portion is integrally formed with the cover body, the gripping portion includes at least two groove portions, and the groove portions are recessed in a direction close to the fixing portion.

[0019] In the above-mentioned embodiment, the configuration of the gripping portion and the cover body being integrally formed facilitates the processing and forming of the protective cover. The gripping portion protrudes in a direction away from the fixing portion, which facilitates the operator to manipulate the protective cover by holding the protruding gripping portion. The groove portion is recessed in a direction close to the fixing portion, which helps to reduce the volume occupied by the protective cover in the housing, and is conducive to installing the protective cover in a smaller housing; and it is also conducive to the operator to manipulate the protective cover by tightening at least two groove portions with fingers.

[0020] In at least one embodiment, the fixing portion is provided with an adhesive member, and the adhesive member is used to connect the fixing portion and the inner wall of the shell.

[0021] In the above embodiment, the provision of the adhesive piece facilitates the connection between the fixing portion and the housing, that is, the protective cover can be fixed to the device mounting area by adhering the adhesive piece to the housing, so that when the punching area is punched, the protective cover is not easy to move, thereby improving the protective effect of the protective cover.

[0022] An embodiment of the present application also provides a power distribution device, including a shell, an electronic device and the protective cover in any of the above embodiments, the shell has a device installation area and a punching area, the electronic device is arranged in the device installation area, the protective cover is arranged in the device installation area, and isolates the punching area and the device installation area.

[0023] In the above-mentioned power distribution equipment, the protective cover can be installed in the device installation area and connected to the outer shell through a fixing part to improve the airtightness of the protective cover and isolate the device installation area from the punching area. When punching holes in the punching area of ​​the outer shell, the cover can block iron filings from the punching area, so that the iron filings generated by the punching are not easy to enter the electronic devices in the device installation area, thereby reducing device failure problems such as short circuit of electronic devices and improving the reliability of the use of the power distribution equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of a power distribution device in one embodiment of the present application.

[0025] Figure 2 yes Figure 1 An exploded view of the power distribution equipment in the figure at an angle.

[0026] Figure 3 yes Figure 1 An exploded view of the power distribution equipment at another angle.

[0027] Figure 4It is an exploded view of a power distribution device in another embodiment of the present application.

[0028] Figure 5 yes Figure 4 A three-dimensional image of the protective cover.

[0029] Figure 6 is a cross-sectional view of a power distribution device in another embodiment of the present application.

[0030] Main component symbols

[0031] 1000-power distribution equipment 100-protective cover 10-cover body

[0032] 11-cover opening 12-first cover portion 13-second cover portion

[0033] 14- telescopic part 141- telescopic joint 15- guide part

[0034] 20-fixing part 30-support column 40-limiting convex part

[0035] 41-limiting inclined surface 50-gripping portion 51-protruding portion

[0036] 52-groove part 200-housing 201-device installation area

[0037] 202-punching area 203-installation port 300-electronic device

[0038] L-Normal X-First Direction Y-Second Direction

[0039] Z - direction of gravity

[0040] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0043] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0044] The interface of the electronic device in the distribution box is used to connect with external devices. When connecting, electricians need to punch holes in the outer shell of the distribution box according to the actual wiring requirements. The shell of the distribution box is usually a metal part. The iron filings generated during the punching process can easily enter the inside of the distribution box, which makes it easy for the iron filings to enter the electronic devices in the distribution box, causing short circuits and other device failures.

[0045] The embodiment of the present application provides a protective cover, which is applied to a power distribution device, wherein the power distribution device comprises a housing and a device installation area located in the housing, and the housing has a perforated area. The protective cover comprises a cover body and a fixing portion connected to the cover body, wherein the cover body is configured to be buckled in the housing of the power distribution device, and the fixing portion is configured to be connected to the housing; the cover body is arranged in the device installation area, and isolates the perforated area and the device installation area to prevent iron filings from the perforated area from entering the device installation area.

[0046] In the above-mentioned protective cover, the protective cover can be installed in the device installation area and connected to the outer shell through a fixing part to improve the airtightness of the protective cover and isolate the device installation area from the punching area. When punching holes in the punching area of ​​the outer shell, the cover body can block iron filings from the punching area, so that the iron filings generated by the punching are not easy to enter the electronic devices in the device installation area, thereby reducing device failure problems such as short circuit of electronic devices and improving the reliability of the distribution equipment.

[0047] The embodiments of the present application are further described below in conjunction with the accompanying drawings.

[0048] like Figure 1 and Figure 2 As shown, the embodiment of the present application provides a protective cover 100 and a power distribution device 1000, wherein the power distribution device 1000 comprises a protective cover 100, a housing 200 and an electronic device 300. The housing 200 has a device installation area 201 and a punching area 202, and the electronic device 300 is arranged in the device installation area 201, and the device installation area 201 is located inside the housing 200.

[0049] See also Figures 1 to 3In some embodiments, the housing 200 is a sheet metal material, and the housing 200 has an installation port 203. The device installation area 201 is used to install the electronic device 300, and the protective cover 100 and the electronic device 300 can enter the housing 200 from the installation port 203. The electronic device 300 has an interface, and the connecting wire of the external device is connected through the interface to realize power supply to the external device. When the connecting wire is connected to the interface, it needs to pass through the housing 200, which requires punching in the punching area 202 of the housing 200 for the connecting wire to pass through. It can be understood that the punching area 202 is an area where the electronic device 300 is not installed, and the punching area 202 can be set on the side of the housing 200.

[0050] See also Figures 1 to 3 In some embodiments, the protective cover 100 includes a cover body 10 and a fixing portion 20 connected to the cover body 10, the cover body 10 is configured to be buckled in the housing 200 of the power distribution device 1000, and the fixing portion 20 is configured to be connected to the housing 200. The cover body 10 is disposed in the device installation area 201 and isolates the punching area 202 from the device installation area 201 to prevent iron filings from the punching area 202 from entering the device installation area 201.

[0051] The protective cover 100 can be installed in the device installation area 201 and connected to the outer shell 200 through the fixing part 20 to improve the airtightness of the protective cover 100 and isolate the device installation area 201 from the punching area 202. When the punching area 202 of the outer shell 200 is punched, the cover body 10 can block the iron filings from the punching area 202, so that the iron filings generated by the punching are not easy to enter the electronic device 300 in the device installation area 201, thereby reducing the device failure problems such as short circuit of the electronic device 300 and improving the reliability of the power distribution equipment 1000.

[0052] See also Figures 1 to 3 In some embodiments, the cover body 10 has a cover opening 11, and the electronic device 300 in the device installation area 201 enters the space inside the cover body 10 through the cover opening 11, and the cover opening 11 is blocked by fitting with the inner wall of the shell 200. When the cover body 10 is covered in the device installation area 201, there is a gap between the cover body 10 and the punching area 202 to leave an operating space, so that when drilling with tools such as an electric drill, it is not easy to damage the protective cover 100.

[0053] In some embodiments, the fixing portion 20 and the cover body 10 are integrally formed to facilitate the production of the protective cover 100 .

[0054] In some embodiments, the fixing portion 20 is provided with an adhesive (not shown), and the adhesive is used to connect the fixing portion 20 with the inner wall of the housing 200. For example, the adhesive is adhesive or glue. The provision of the adhesive facilitates the connection between the fixing portion 20 and the housing 200, that is, the protective cover 100 can be fixed to the device mounting area 201 by the adhesive and the housing 200, so that when the punching area 202 is punched, the protective cover 100 is not easy to move, thereby improving the protective effect of the protective cover 100.

[0055] In other embodiments, the fixing portion 20 is detachably fixed to the housing 200 by screws; or, the fixing portion is provided with a magnetic attraction member (not shown) so that the protective cover 100 is fixed to the housing 200 by magnetic attraction.

[0056] See also Figures 1 to 3 In some embodiments, the normal line L direction of the housing 200 is defined as the first direction, the first direction is the direction indicated by X in the diagram, and the second direction is the direction perpendicular to the first direction, that is, the second direction is the direction indicated by Y in the diagram. For the convenience of referring to the diagram, the first direction is hereinafter represented by "first direction X" and the second direction is hereinafter represented by "second direction Y". The cover body 10 includes a first cover portion 12, a second cover portion 13 and a telescopic portion 14. The telescopic portion 14 is connected between the first cover portion 12 and the second cover portion 13. The telescopic portion 14 is telescopic along the second direction Y, and the second direction Y is perpendicular to the first direction X.

[0057] Since the size of the installation opening 203 is fixed, the relative positions of the first cover portion 12 and the second cover portion 13 can be changed by the extension and contraction of the telescopic portion 14, so that the size of the protective cover 100 as a whole in the second direction Y is reduced, thereby facilitating the installation of the protective cover 100 in the housing 200 from the installation opening 203. When the protective cover 100 is placed in the housing 200, the extension of the telescopic portion 14 can also increase the covering area of ​​the protective cover 100, which is conducive to enclosing the electronic device 300 between the protective cover 100 and the housing 200, thereby improving the protective effect of the protective cover 100.

[0058] Exemplarily, the telescopic portion 14 includes a plurality of telescopic joints 141 connected in sequence, and each telescopic joint 141 is telescopic along the second direction Y. The telescopic portion 14 is similar to the structure of an accordion protective cover or the structure of a range hood duct. The plurality of telescopic joints 141 can be telescoped according to the different sizes of the housing 200 of the power distribution equipment 1000, thereby improving the scope of application. The telescopic portion composed of the telescopic joints has a simple structure, is easy to install and maintain, and is simple to operate and easy to telescope. The plurality of telescopic joints 141 can be connected in sequence along the second direction Y to increase the telescopic length, thereby further adapting to different types of power distribution equipment 1000.

[0059] Exemplarily, the telescopic portion 14 is a flexible structure that can be folded and deformed, and can be stretched to achieve a telescopic effect. For example, the telescopic portion 14 is made of canvas material.

[0060] In other embodiments, the direction of the normal L of the shell 200 is defined as the first direction X, the cover body 10 includes a first cover portion 12 and a second cover portion 13, the first cover portion 12 has a first sliding fitting portion (not shown), the second cover portion 13 has a second sliding fitting portion (not shown), the first sliding fitting portion and the second sliding fitting portion are slidingly fitted along the second direction Y, so that the first cover portion 12 and the second cover portion 13 at least partially overlap in the first direction X, and the second direction Y is perpendicular to the first direction X.

[0061] The relative sliding of the first cover portion 12 and the second cover portion 13 can change the overlapping area of ​​the first cover portion 12 and the second cover portion 13, thereby changing the cover area of ​​the protective cover 100, so as to adjust the size of the protective cover 100 according to the device mounting area 201 of different sizes.

[0062] Exemplarily, the first sliding fitting portion is a slide rail, the second sliding fitting portion is a slide groove, the extension direction of the slide rail is consistent with the extension direction of the slide groove, and the slide rail is slidably disposed in the slide groove.

[0063] See also Figures 1 to 3 In some embodiments, the cover body 10 is provided with a support column 30, and one end of the support column 30 facing the device installation area 201 abuts against the electronic device 300 and / or the housing 200 in the device installation area 201 to support the protective cover 100. Exemplarily, one end of the support column 30 facing the device installation area 201 abuts against one of the electronic device 300 and the housing 200, or abuts against both the electronic device 300 and the housing 200.

[0064] One end of the support column 30 can support the cover body 10, and the other end can support the electronic device 300 or the shell 200 in the device installation area 201, so that the electronic device 300 or the shell 200 can apply a supporting force to the cover body 10 through the support column 30, so that the cover body 10 is not easy to collapse and deform into the device installation area 201, thereby making the electronic device 300 in the device installation area 201 not easy to be damaged by pressure.

[0065] In some embodiments, the first cover portion 12 is provided with a support column 30, and the second cover portion 13 is also provided with a support column 30, and the number of support columns 30 provided on the first cover portion 12 and the second cover portion 13 is at least one. The cover body 10 is supported by multiple support portions to improve the structural strength of the cover body 10, so that the cover body 10 is not easily collapsed or deformed.

[0066] See also Figure 4 , Figure 5 and Figure 6 In some embodiments, the cover body 10 is provided with a limiting protrusion 40, which protrudes toward the device installation area 201, and the limiting protrusion 40 has a limiting inclined surface 41 at one end facing the device installation area 201, and the limiting inclined surface 41 is constructed to abut against the edge of the electronic device 300 in the device installation area 201.

[0067] When the cover 10 is installed in the housing 200, the limiting inclined surface 41 can abut against the electronic device 300, so that the electronic device 300 applies a supporting force to the cover 10 through the limiting protrusion 40, so that the cover 10 is not easy to collapse and deform into the device installation area 201, so that the electronic device 300 in the device installation area 201 is not easy to be damaged by pressure. The inclination of the limiting inclined surface 41 can adapt to electronic devices 300 of different sizes, so that the limiting protrusion 40 can always abut against the edge of the electronic device 300.

[0068] Exemplarily, both the first cover portion 12 and the second cover portion 13 are provided with a limiting convex portion 40, the limiting convex portion 40 of the first cover portion 12 is provided on the side of the first cover portion 12 away from the second cover portion 13, the limiting convex portion 40 of the second cover portion 13 is provided on the side of the second cover portion 13 away from the first cover portion 12, and the limiting inclined surface 41 of the first cover portion 12 and the limiting inclined surface 41 of the second cover portion 13 are inclined in opposite directions. On the side away from the fixing portion 20, the distance between the limiting inclined surface 41 of the first cover portion 12 and the limiting inclined surface 41 of the second cover portion 13 is a first distance; on the side close to the fixing portion 20, the distance between the limiting inclined surface 41 of the first cover portion 12 and the limiting inclined surface 41 of the second cover portion 13 is a second distance, and the first distance is smaller than the second distance. The inclination of the limiting slope 41 can adapt to electronic devices 300 with different heights in the first direction X, so that the limiting protrusion 40 can always contact the edge of the electronic device 300 and apply pressure to the electronic device 300, so that the limiting protrusion 40 supports the cover body 10 under the reaction force of the electronic device 300.

[0069] In some embodiments, the electronic device 300 can be installed in a device box, and the device box is placed as a whole in the device installation area 201 of the housing 200. When the protective cover 100 is installed, the limiting protrusion 40 can always contact the edge of the device box to support the protective cover 100.

[0070] See also Figure 2 or Figure 4 In some embodiments, the protective cover 100 further includes a gripping portion 50, which is disposed on a side of the cover body 10 facing away from the fixing portion 20. The provision of the gripping portion 50 facilitates manipulation of the protective cover 100 when installing or removing the protective cover 100, which is beneficial to improving the efficiency of assembly and disassembly of the protective cover 100.

[0071] In some embodiments, the gripping portion 50 is integrally formed with the cover body 10. The configuration of the gripping portion 50 and the cover body 10 being integrally formed facilitates the processing and forming of the protective cover 100.

[0072] See also Figure 2 In some embodiments, the gripping portion 50 protrudes in a direction away from the fixing portion 20. The gripping portion 50 protrudes in a direction away from the fixing portion 20, so that the operator can easily manipulate the protective cover 100 by holding the protruding gripping portion 50.

[0073] Exemplarily, the gripping portion 50 includes two protrusions 51, one of which is disposed on the first cover portion 12, and the other is disposed on the second cover portion 13. The protrusions 51 are disposed to facilitate manipulation of the first cover portion 12 and the second cover portion 13. For example, the telescopic portion 14 is telescoped by manipulating the protrusions 51.

[0074] See also Figure 2 or Figure 4 In other embodiments, the gripping portion 50 includes at least two groove portions 52, and the groove portions 52 are recessed in a direction close to the fixing portion 20. For example, one of the groove portions 52 is provided in the first cover portion 12, and the other groove portion 52 is provided in the second cover portion 13. Such a configuration is conducive to reducing the volume occupied by the protective cover 100 in the housing 200, and is conducive to installing the protective cover 100 in a smaller housing 200; and is also conducive to the operator to manipulate the protective cover 100 by tightening at least two groove portions 52 with fingers. For example, the protective cover 100 can be taken and placed by manipulating the groove portions 52.

[0075] See also Figure 2 In some embodiments, the gripping portion 50 includes a groove portion 52 and a protrusion portion 51 , and the operator can choose to manipulate the cover body 10 by manipulating the groove portion 52 , or can choose to manipulate the protrusion portion 51 to manipulate the cover body 10 .

[0076] See also Figure 4 In some embodiments, the cover body 10 has a guide portion 15 on the side facing away from the fixing portion 20. In actual application, the guide portion 15 is inclined from the horizontal direction to the gravity direction Z, so that iron filings falling on the guide portion 15 can fall to the ground or the bottom of the power distribution equipment 1000 under the guidance of the guide portion 15 and the action of gravity, making it difficult for the iron filings to enter the device installation area 201.

[0077] In some embodiments, the protective cover 100 is installed in the device mounting area 201 only when the housing 200 needs to be punched. After the punching, the protective cover 100 can be removed from the device mounting area 201 so that the protective cover 100 can be reused.

[0078] In some embodiments, the cover body 10 is provided with a detachably connected baffle (not shown), which is configured to be detachable from the cover body 10 to form a knock-out hole (not shown) so that the interface of the electronic device 300 in the device mounting area 201 is exposed from the knock-out hole, thereby facilitating the connection of an external device with the electronic device 300 without removing the protective cover 100.

[0079] In addition, those skilled in the art may also make other changes in the present application. Of course, these changes made based on the present application should be included in the scope disclosed in the present application.

Claims

1. A protective cover, applied to a power distribution device, the power distribution device comprising a housing and a device installation area located in the housing, the housing having a perforated area, characterized in that: The protective cover comprises a cover body and a fixing portion connected to the cover body, the cover body is configured to be buckled in the housing of the power distribution equipment, and the fixing portion is configured to be connected to the housing; The cover body is disposed on the device installation area and isolates the punching area from the device installation area to prevent iron filings from the punching area from entering the device installation area.

2. The protective cover according to claim 1, characterized in that The normal direction of the shell is defined as a first direction, the cover body includes a first cover portion, a second cover portion and a telescopic portion, the telescopic portion is connected between the first cover portion and the second cover portion, the telescopic portion is telescoped along a second direction, and the second direction is perpendicular to the first direction.

3. The protective cover according to claim 2, characterized in that: The telescopic portion includes a plurality of telescopic sections sequentially connected along the second direction, and each of the telescopic sections is telescopic along the second direction.

4. The protective cover according to claim 1, characterized in that: The normal direction of the shell is defined as a first direction, and the cover body includes a first cover portion and a second cover portion, the first cover portion has a first sliding fitting portion, the second cover portion has a second sliding fitting portion, the first sliding fitting portion and the second sliding fitting portion slide and fit along a second direction so that the first cover portion and the second cover portion at least partially overlap in the first direction, and the second direction is perpendicular to the first direction.

5. The protective cover according to claim 1, characterized in that: The cover body is provided with a support column, and one end of the support column facing the device installation area abuts against the electronic device in the device installation area and / or the housing to support the protective cover.

6. The protective cover according to claim 1, characterized in that: The cover body is provided with a limiting protrusion, the limiting protrusion protrudes toward the device installation area, and the limiting protrusion has a limiting inclined surface at one end facing the device installation area, and the limiting inclined surface is configured to abut against the edge of the electronic device in the device installation area.

7. The protective cover according to any one of claims 1 to 6, characterized in that The protective cover further comprises a gripping portion, and the gripping portion is arranged on a side of the cover body facing away from the fixing portion.

8. The protective cover according to claim 7, characterized in that: The gripping portion is integrally formed with the cover body and protrudes in a direction away from the fixing portion; or, The gripping portion is integrally formed with the cover body, and the gripping portion includes at least two groove portions, and the groove portions are recessed in a direction close to the fixing portion.

9. The protective cover according to any one of claims 1 to 6, characterized in that: The fixing portion is provided with an adhesive member, and the adhesive member is used to connect the fixing portion and the inner wall of the shell.

10. A power distribution device, characterized in that: It comprises a shell, an electronic device and a protective cover as described in any one of claims 1 to 9, wherein the shell has a device installation area and a punching area, the electronic device is arranged in the device installation area, and the protective cover is arranged in the device installation area and isolates the punching area and the device installation area.

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