Electric appliance and protective cover for an electric appliance

Abstract

This application relates to an electrical appliance and a protective cover for the appliance. The protective cover includes: a cover body, comprising a main body, an outer edge, and a flange, the outer edge and the flange being spaced apart from each other around the periphery of the main body, the outer edge surrounding the outer side of the flange, and the height of the flange being lower than that of the outer edge; and a sealing member, the sealing member having a first end face facing the cover body, the first end face having a recessed mounting groove, the flange engaging with the mounting groove, and when the flange is inserted into the mounting groove, the outer periphery of the sealing member adhering to the inner wall of the outer edge. This application, by providing a flange protruding from the main body and a mounting groove on the sealing member engaging with the flange, and by ensuring that when the flange is inserted into the mounting groove, i.e., the sealing member is installed in place, the outer periphery of the sealing member adhering to the inner wall of the outer edge, thereby providing two levels of positioning for the sealing member through the flange and the outer edge, making the sealing member securely installed. This allows for the provision of a wider sealing member to improve the sealing performance between the protective cover and the outer casing.

Description

Technical Field

[0001] This application relates to the field of electrical technology, and in particular to electrical appliances and protective covers for electrical appliances. Background Technology

[0002] Home appliances have become deeply integrated into all aspects of modern life, from washing machines and vacuum cleaners that clean the environment, to coffee makers and air purifiers that improve quality of life, and to power tools and outdoor lighting that enhance convenience. Their applications are becoming increasingly widespread and complex. Many appliances, especially those that need to be used in humid environments (such as kitchens and bathrooms) or outdoors, often contain delicate electronic components and motor drive parts. To protect these core components from moisture, dust, oil, and even accidental splashes, and to ensure long-term stable operation and user safety, effective structural waterproofing has become a key consideration in product design. To enable functions such as protection, maintenance, or battery replacement, many appliances employ removable protective casings.

[0003] The appliance casing is also equipped with a removable protective cover. In related technologies, the protective cover and the appliance casing need to be sealed with a sealing ring. However, conventional protective cover sealing rings are relatively narrow, resulting in poor sealing performance. Furthermore, there is no designated location on the protective cover for installing the sealing ring, making it extremely inconvenient to install wider sealing rings. Utility Model Content

[0004] Therefore, it is necessary to provide an electrical appliance and a protective cover for the electrical appliance that combine sealing and ease of installation to address the aforementioned technical problems.

[0005] A protective cover for an electrical appliance, the protective cover comprising:

[0006] A cover body includes a main body, an outer edge, and a flange, wherein the outer edge and the flange are spaced apart from each other around the periphery of the main body, the outer edge surrounds the outer side of the flange, and the height of the flange is lower than that of the outer edge; and,

[0007] A sealing element has a first end face facing the cover body, and the first end face is recessed with a mounting groove. The flange is inserted into the mounting groove. When the flange is inserted into the mounting groove, the outer periphery of the sealing element fits against the inner wall of the outer edge.

[0008] The protective cover for electrical appliances described above has the following advantages compared to the prior art:

[0009] The aforementioned protective cover has a flange protruding on the main body and a mounting groove on the sealing element that engages with the flange. When the flange is inserted into the mounting groove, i.e., when the sealing element is installed in place, the outer periphery of the sealing element fits against the inner wall of the outer edge. Thus, the flange and the outer edge form two positioning mechanisms for the sealing element, making the sealing element securely installed. Based on this, a wider sealing element can be designed to improve the sealing performance between the protective cover and the outer shell.

[0010] In one embodiment, the seal has a second end face facing away from the cover, the second end face having a plurality of protruding abutment protrusions or recessed abutment grooves.

[0011] In one embodiment, the second end face is provided with at least three protruding abutment protrusions, at least one of the abutment protrusions located in the middle having a higher height than the abutment protrusion located at the edge of the seal.

[0012] In one embodiment, the cover further includes a support edge disposed between the outer edge and the flange, the support edge being lower than the flange, and the seal abutting against the support edge.

[0013] In one embodiment, the protective cover further includes a first connector located within the cover body and disposed on the main body portion, the first connector being used to detachably connect the main body portion to the outer casing of the appliance.

[0014] In one embodiment, the first connector includes at least two first latches, each of which is spaced apart from each other on the side of the main body away from the second connector.

[0015] In one embodiment, the first connector includes at least one second snap fastener disposed between the first snap fastener and the second connector, and the second snap fastener passes through the housing.

[0016] In one embodiment, the main body and the outer edge are arranged at an angle.

[0017] An electrical appliance, comprising:

[0018] The outer shell; and,

[0019] A protective cover, as described above, is detachably provided on the outer casing.

[0020] In one embodiment, the electrical appliance further includes a second connector, the protective cover has a mounting hole, the second connector is disposed in the mounting hole, and the second connector is used to connect the protective cover to the outer casing.

[0021] The protective cover for electrical appliances described above has the following advantages compared to the prior art:

[0022] The aforementioned electrical appliance features a flange protruding from its main body and a mounting groove on its seal that engages with the flange. When the flange is inserted into the mounting groove, i.e., when the seal is installed in place, the outer periphery of the seal fits against the inner wall of the outer edge. Thus, the flange and the outer edge provide two levels of positioning for the seal, ensuring a stable installation. This allows for the design of a wider seal to improve the sealing between the protective cover and the outer casing, thereby enhancing the appliance's waterproofness. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a protective cover installed on an electrical appliance casing according to an embodiment of this application.

[0024] Figure 2 This is a schematic diagram of the structure of the cover according to an embodiment of this application.

[0025] Figure 3 This is a schematic diagram of the structure of a protective cover according to an embodiment of this application.

[0026] Figure 4 for Figure 3 A cross-sectional view of the AA plane.

[0027] Figure 5 This is a schematic diagram of the structure of a sealing element according to an embodiment of this application.

[0028] Explanation of icon numbers:

[0029] 10. Outer shell; 11. Inspection port; 12. Support plate; 100. Protective cover; 101. Cover body; 110. Fixing part; 111. Bottom wall; 111a. Mounting hole; 112. Outer edge; 113. Flange; 114. Supporting edge; 120. Main body; 130. First connector; 131. First buckle; 132. Second buckle; 133. Hook groove; 200. Sealing element; 210. First end face; 211. Mounting groove; 220. Second end face; 221. Abutment protrusion; 222. Abutment groove. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0036] See Figure 1 , Figure 1 A schematic diagram of a protective cover 100 for an electrical appliance according to an embodiment of this application is shown. The protective cover 100 provided in one embodiment of this application includes a cover body 101 and a sealing element 200. The cover body 101 includes a main body 120, an outer edge 112, and a flange 113. The outer edge 112 and the flange 113 are disposed at intervals around the periphery of the main body 120, and the outer edge 112 surrounds the outer side of the flange 113. The sealing element 200 is located inside the cover 100. The sealing element 200 has a first end face 210 facing the cover 101. The first end face 210 is recessed with a mounting groove 211. The flange 113 is inserted into the mounting groove 211. When the flange 113 is inserted into the mounting groove 211, the outer periphery of the sealing element 200 fits against the inner wall of the outer edge 112, so that when the protective cover 100 is placed behind the electrical appliance, the sealing element 200 can abut between the flange 113 and the outer shell 10.

[0037] One embodiment of this application also provides an electrical appliance, including a housing 10 and a protective cover 100, the protective cover 100 being as described above and detachably disposed on the housing 10. The electrical appliance can be a kitchen, bathroom, or outdoor appliance, for example, a water heater, a range hood, etc. The housing 10 can be the housing of the appliance itself or the housing of the appliance's display.

[0038] The aforementioned protective cover 100 and electrical appliance are provided with a flange 113 protruding from the main body 120 and a mounting groove 211 on the sealing element 200 that engages with the flange 113. When the flange 113 is inserted into the mounting groove 211, i.e., when the sealing element 200 is installed in place, the outer periphery of the sealing element 200 fits against the inner wall of the outer edge 112. Thus, the flange 113 and the outer edge 112 provide two levels of positioning for the sealing element 200, making the sealing element 200 securely installed. This allows for a wider sealing element 200 to improve the sealing between the protective cover 100 and the outer casing 10, thereby improving the waterproofness of the electrical appliance. In one embodiment, the cover 100 also includes a fixing part 110, which is arranged around the periphery of the main body 120 and is integrally formed with the main body 120. The fixing part 110 has the outer edge 112 and the flange 113 protruding from it.

[0039] Specifically, the fixing part 110 is arranged in a ring shape (circular or non-circular) around the main body part 120, and the sealing element 200 is arranged in a ring shape (circular or non-circular) within the fixing part 110. The sealing element 200 can be directly molded onto the fixing part 110. The sealing element 200 can be silicone rubber, EPDM rubber, NBR rubber, and thermoplastic elastomer (TPE / TPV), etc.

[0040] Specifically, the outer edge 112 forms the outer contour of the cover 101. The outer edge 112 and the flange 113 can be integrally formed. The flange 113 serves as a reinforcing rib or as a rib that facilitates mold construction during molding. The flange 113 can also provide a position for the seal 200 to be installed. The outer edge 112 and the flange 113 can be arranged parallel to each other or at an angle. In this example, the angle between the outer edge 112 and the flange 113 is 5-15°. The outer edge 112 is continuously arranged, while the flange 113 can be arranged in segments to avoid the first connector 130 or the second connector inside the cover 101.

[0041] In one embodiment, the height of the flange 113 is lower than that of the outer edge 112. The seal 200 has a second end face 220 facing the housing 10, the second end face 220 and the first end face 210 being disposed opposite each other, the flange 113 being disposed in the mounting groove 211, and the second end face 220 having at least one protruding abutment protrusion 221 or a recessed abutment groove 222.

[0042] Specifically, the annular seal 200 has two annular, oppositely arranged first end faces 210 and second end faces 220. The first end faces 210 have an outer peripheral surface and an inner peripheral surface. The first end face 210 faces the outer shell 10 of the cover 101, the second end face 220 abuts against the flange 113, the outer peripheral surface fits against the inner wall of the outer edge 112, and the inner peripheral surface faces the interior of the cover 101. During installation, the seal 200 has a large contact area with the shell, forming a three-sided contact, which ensures that the seal 200 will not come off during the sliding locking process of the protective cover 100.

[0043] The first end face 210 is recessed with a mounting groove 211, and the flange 113 is disposed in the mounting groove 211. The seal 200 can be directly formed on the flange 113 and partially wrap around the flange 113 to form the mounting groove 211. The depth of the mounting groove 211 is 5-20mm to ensure that the seal 200 has a sufficiently deep installation depth to cover the flange 113.

[0044] The second end face 220 is a non-flat surface. The non-flat surface formed by at least one protruding abutment protrusion 221 or a recessed abutment groove 222 can create a labyrinth structure, improving the sealing effect. Specifically, the abutment protrusion 221 or the abutment groove 222 is arranged in a ring shape parallel to the outer peripheral surface. The abutment protrusions 221 can be of the same height, or the abutment grooves 222 can be of the same depth. At least one protruding abutment protrusion 221 or a recessed abutment groove 222 causes the first end face 210 to form a racetrack-shaped sealing ring, resulting in a good sealing effect.

[0045] Preferably, at least three abutment protrusions 221 may be provided, or two abutment grooves 222 may be provided (to form three groove walls, equivalent to abutment protrusions 221). When there are three or more abutment protrusions 221, at least one abutment protrusion 221 located in the middle is higher than the abutment protrusions 221 located on both sides. The height of the abutment protrusion 221 or the depth of the abutment groove 222 is 2-10mm, and the height difference between the abutment protrusion 221 located in the middle and the abutment protrusions 221 located on both sides is 0.1-5mm.

[0046] In one embodiment, the fixing part 110 further includes a support edge 114 disposed between the outer edge 112 and the flange 113, the height of the support edge 114 being lower than that of the flange 113, and a portion of the seal 200 abutting against the support edge 114.

[0047] Specifically, the support edge 114 can be arranged intersecting both the outer edge 112 and the flange 113, or it can be spaced apart from at least one of the outer edge 112 and the flange 113. In this embodiment, the support edge 114 is arranged perpendicularly to both the outer edge 112 and the flange 113. After the seal 200 is formed, the first end face 210 abuts against the support edge 114 and is spaced apart from the inner surface of the cover 101. The height difference between the support edge 114 and the flange 113 is 2-10 mm to ensure that the seal 200 has a sufficiently deep installation depth.

[0048] It was found that the common method of joining protective shells and outer shells is to use screws for fastening. Screw connections provide uniform, quantifiable, and durable locking force, which is crucial for compressing the sealing material at the joint surface and forming a continuous and reliable sealing barrier. To achieve the desired structural waterproofing effect, the design often uses front-mounted screws, meaning the screw heads are visible on the outer surface of the shell, in conjunction with a pre-installed silicone sealing ring. However, achieving this reliable seal inevitably requires the screws used for fastening to be exposed on the front or main outer surface of the product. While these exposed screw heads are functionally indispensable, they objectively affect the overall integrity, simplicity, and premium feel of the product's appearance.

[0049] In one embodiment, the fixing part 110 has a mounting hole 111a, which faces the main body part 120. A first connector 130 is located inside the cover 101 and disposed in the main body part 120, and the first connector 130 is used to detachably connect the main body part 120 to the outer shell 10.

[0050] In one embodiment, the electrical appliance further includes a second connector, the protective cover 100 is provided with a mounting hole 111a, the second connector is disposed in the mounting hole 111a, and the second connector is used to connect the protective cover 100 to the outer casing 10.

[0051] By setting a first connector 130 located inside the housing, the protective cover 100 is connected to the appliance housing 10. The first connector 130 is connected to the housing 10 at the same time as the protective cover 100 is set. After the connection, the first connector 130 is not exposed outside the protective cover 100. The second connector is located in the mounting hole 111a facing the main body 120. The second connector is not easily noticed by the user when using the appliance, thus achieving the requirement that the front of the protective cover 100 has no protruding appearance. The second connector cooperates with the first connector 130 to connect with the housing 10 at different positions of the cover 101, ensuring the tightness of the installation of the protective cover 100, improving the appearance of the appliance and the user experience, while also meeting the waterproof requirements.

[0052] Specifically, the cover 101 can be flat, curved, or semi-box-shaped. When the cover 101 is flat or curved, after it is connected to the outer shell 10, the cover 101 and the outer shell 10 can be continuously arranged, so that there is no protrusion on the surface of the appliance. In this embodiment, the cover 101 can also protrude from the outer shell 10, so that the fixing part 110 is mated with the outer shell 10. The fixing part 110 is located between the main body part 120 and the outer shell 10, and the main body part 120 and the outer shell 10 are spaced apart.

[0053] The outer casing 10 has an access port 11, and the cover 101 is disposed at the access port 11. The shape of the main body 120 is substantially the same as or similar to the shape of the access port 11. For example, in this embodiment, the main body 120 is square, and the four corners of the main body 120 are chamfered. One side of the fixing part 110 is disposed around the main body 120, and the other side of the fixing part 110 is disposed around the edge of the access port 11.

[0054] In one embodiment, the main body 120 and the fixing part 110 are arranged at an angle. Specifically, the angle between the main body 120 and the fixing part 110 is 30-150°, for example, the angle between the main body 120 and the fixing part 110 is 80°, 90°, 110°, 120°, etc. The angled arrangement of the main body 120 and the fixing part 110 makes it easier for the user to grip the protective case when removing it. When the main body 120 is in a certain orientation, it has four outer edges and four chamfered edges. The angle between the fixing part 110 and each of the four outer edges can be equal or unequal. In particular, the angle between the outer edges of two opposing sets of main body parts 120 and the corresponding fixing parts 110 is equal, and the angle between the fixing part 110 and the four chamfered edges is equal. In one embodiment, the first connector 130 includes at least two first latches 131, each of the first latches 131 being spaced apart from each other on the side of the main body 120 away from the second connector, or each of the first latches 131 being spaced apart from each other above the main body 120.

[0055] The "above" in the main body 120 is defined as the upward direction when the user is facing the appliance, such as... Figure 1 As shown, the area above the main body 120 refers to the area slightly above the center of the main body 120 after the protective cover 100 is installed on the electrical appliance.

[0056] The first connector 130 can be integrally formed with the main body 120. Multiple first buckles 131 are provided, each first buckle 131 including multiple clips, which are combined and connected to form a single first buckle 131. One end of each clip extends from the main body 120, and the other end forms a groove 133 for connecting to the outer casing 10. Each first buckle 131 or each clip is connected to each other by reinforcing ribs protruding from the main body 120, and multiple clips are connected by independent reinforcing ribs.

[0057] In one embodiment, the first connector 130 includes at least one second buckle 132, which is disposed in the middle of the main body 120 and passes through the outer shell 10.

[0058] Specifically, the second latch 132 is located between the first latch 131 and the bottom wall 111, and the second latch 132 is approximately equidistant from the first latch 131 and the bottom wall 111. The second latch 132 is located on the left and right sides of the middle of the main body 120, with left and right defined as the left and right directions when the user faces the appliance, to avoid obstructing components inside the appliance corresponding to the middle of the main body 120. The structure of the second latch 132 is similar to that of the first latch 131 or the latch itself. One end of the second latch 132 extends from the main body 120, and the other end forms a groove 133 for connecting to the outer casing 10. The groove 133 of the second latch 132 and the groove 133 of the first latch 131 are both oriented upwards. The first latch 131 is connected to the edge of the access port 11 on the outer casing 10, that is, the edge of the access port 11 is embedded in the groove 133 to achieve connection, and the second latch 132 is connected to the through hole on the outer casing 10.

[0059] The first buckle 131 and the second buckle 132 are connected by a reinforcing rib protruding from the main body 120. The reinforcing rib is arranged along the path of the fixing part 110, that is, the reinforcing rib protrudes from the main body 120 parallel to the fixing part 110. In one embodiment, the second connector includes a fastening bolt (not shown), which is used to connect with an external support piece 12. The support piece 12 abuts between the fixing part 110 and the outer shell 10. The fastening bolt passes through the mounting hole 111a of the fixing part 110 and the support piece 12 in a direction parallel to the outer shell 10 to connect the fixing part 110 and the outer shell 10.

[0060] In one embodiment, the second connector is located on the portion of the fixing part 110 below the main body 120. The portion of the fixing part 110 below the main body 120 refers to the part of the fixing part 110 connected to the lower edge of the main body 120, and this portion of the fixing part 110 is defined as the bottom wall 111. The bottom wall 111 and the first connector 130 are respectively disposed away from each other. The first connector 130 is close to the upper edge of the main body 120, and the bottom wall 111 is located at the lower edge of the main body 120, so that the cover 101 and the outer shell 10 are tightly connected. The mounting hole 111a is located on the bottom wall 111, and the bottom wall 111 is set at an angle to the outer shell 10, so that a shielding area is formed between the bottom wall 111 and the outer shell 10. A portion of the structure of the second connector (fixing bolt) outside the cover 100 is located within the shielding area, so that the second connector is not exposed from the front.

[0061] The second connector is located on the bottom wall 111 to avoid being exposed on the front, thus achieving the requirement that the protective cover 100 has no protruding appearance on the front. Specifically, the support piece 12 includes a first side and a second side. The first side is parallel to the outer shell 10, and the second side is parallel to the outer wall of the fixing part 110. In this embodiment, the first side and the second side are arranged at an angle, so that the support piece 12 forms a folded edge structure. After the first side is connected to the outer shell 10, the second side forms a protruding support platform. The bottom wall 111 and the second side of the fixing part 110 are both provided with through holes. The fastening bolt passes through the through holes on the bottom wall 111 and the second side of the fixing part 110 to connect the fixing part 110 to the support piece 12. In particular, the fastening bolt is a combination structure of a screw and a nut.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A protective cover for electrical appliances, characterized in that, The protective cover (100) includes: A cover (101) includes a main body (120), an outer edge (112), and a flange (113), wherein the outer edge (112) and the flange (113) are spaced apart from each other around the periphery of the main body (120), and the outer edge (112) surrounds the outer side of the flange (113); and, A sealing element (200) has a first end face (210) facing the cover (101), and the first end face (210) is recessed with a mounting groove (211). The flange (113) is inserted into the mounting groove (211). When the flange (113) is inserted into the mounting groove (211), the outer periphery of the sealing element (200) fits against the inner wall of the outer edge (112).

2. The protective cover for electrical appliances according to claim 1, characterized in that, The sealing element (200) has a second end face (220) facing away from the cover (101), and the second end face (220) is provided with a plurality of protruding abutment protrusions (221) or recessed abutment grooves (222).

3. The protective cover for electrical appliances according to claim 2, characterized in that, The second end face (220) is provided with at least three protruding abutment protrusions (221), at least one of the abutment protrusions (221) located in the middle having a higher height than the abutment protrusions (221) located at the edge of the seal (200).

4. The protective cover for electrical appliances according to claim 2, characterized in that, The cover (101) also includes a support edge (114) disposed between the outer edge (112) and the flange (113), the height of the support edge (114) being lower than that of the flange (113), and the seal (200) abutting against the support edge (114).

5. The protective cover for electrical appliances according to claim 1, characterized in that, The protective cover (100) further includes a first connector (130), which is located inside the cover body (101) and disposed in the main body (120). The first connector (130) is used to detachably connect the main body (120) to the outer casing (10) of the appliance.

6. The protective cover for electrical appliances according to claim 5, characterized in that, The first connector (130) includes at least two first latches (131), each of the first latches (131) being disposed at intervals on the side of the main body (120) away from the second connector.

7. The protective cover for electrical appliances according to claim 6, characterized in that, The first connector (130) includes at least one second buckle (132), which is disposed between the first buckle (131) and the second connector, and passes through the outer shell (10).

8. The protective cover for electrical appliances according to claim 5, characterized in that, The main body (120) and the outer edge (112) are arranged at an angle.

9. An electrical appliance, characterized in that, include: Outer shell (10); as well as, A protective cover (100), as described in any one of claims 1-8, and detachably disposed on the outer casing (10).

10. The electrical appliance according to claim 9, characterized in that, The electrical appliance also includes a second connector. The protective cover (100) is provided with a mounting hole (111a). The second connector is disposed in the mounting hole (111a) and is used to connect the protective cover (100) to the outer casing (10).

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