An electrical box connection structure, an electrical box, and an electrical device including the same

Abstract

The present invention provides an electrical box connection structure, an electrical box, and an electrical device including the same. The electrical box connection structure includes: a first claw, a first card hole, and a limiting groove provided on the electrical box body, and a second claw, a second card hole, and a limiting foot provided on the cover body. The first claw is clamped with the second card hole, the first card hole is clamped with the second claw. The limiting foot includes a limiting main body and a limiting portion formed on the limiting main body. The limiting main body extends into the limiting groove, and the limiting main body cooperates with the inner wall of the limiting groove to form a primary limit. The limiting groove includes a limiting edge, and the limiting portion abuts against the limiting edge, and the limiting portion and the limiting edge form a secondary limit. The present invention makes the connection between the electrical box body and the cover body more convenient and fast, and also makes the assembly accuracy of the two higher.

Description

Technical Field

[0001] The present invention relates to the technical field of connection structures, and particularly to an electrical box connection structure, an electrical box, and an electrical device including the same. Background Art

[0002] Currently, in order to protect some electrical components on electrical devices, electrical boxes are provided for installing electrical components. The electrical box is a relatively enclosed structure, including a box body and a cover body. The box body and the cover body are often fixedly connected by screws to prevent the cover body from falling off, so that it can effectively protect the electrical components.

[0003] For example, for an oil-filled electric radiator or other heaters, in order to protect the housing containing electrical components, when installing the cover body of the electrical box, it is assembled by screws to achieve a stable fixation purpose, realizing anti-dropping and thus playing a safety protection role. However, adding screw installation is equivalent to adding screw parts and the installation process, which undoubtedly increases the product cost and does not conform to the pursuit concept of modern consumers for electric heaters with the same performance and low cost; moreover, adding a screw installation structure usually places the large head of the screw outside, damaging the overall appearance of the box body structure, which does not conform to the pursuit concept of modern consumers for beauty and refinement.

[0004] To solve the above problems, some electrical boxes adopt a snap structure for installation. However, a simple snap structure has poor connection reliability and cannot effectively fix; secondly, the installation positioning is not accurate enough to meet the positioning requirements in some usage scenarios that require precise positioning. Summary of the Invention

[0005] In view of this, the present invention provides an electrical box connection structure, an electrical box, and an electrical device including the same, at least for solving the technical problem of inconvenient assembly of the electrical box in the prior art. Specifically:

[0006] In a first aspect, the present invention provides an electrical box connection structure, including: a first claw, a first hole, and a limit groove provided on the electrical box body, and a second claw, a second hole, and a limit foot provided on the cover body.

[0007] The first claw is clamped with the second hole, and the first hole is clamped with the second claw to complete the connection of the electrical box body and the cover body.

[0008] The limit foot includes a limit main body and a limit portion formed on the limit main body. The limit main body extends into the limit groove, and the limit main body cooperates with the inner wall of the limit groove to form a first-level limit.

[0009] The limit groove includes a limit edge, and the limit portion abuts against the limit edge, and the limit portion and the limit edge form a second-level limit.

[0010] Further optionally, it further includes a positioning post provided on the cover body and a positioning hole provided on the electrical box body, and the positioning post cooperates with the positioning hole to position the cover body.

[0011] Further optionally, the limiting portion is formed at the end of the limiting main body, and the limiting portion includes an inclined edge.

[0012] The limiting groove is formed on the side wall of the electrical box body. The limiting groove is configured as a groove-shaped structure recessed in the side wall of the electrical box body, and the limiting edge is formed on one side of the limiting groove.

[0013] Further optionally, the limiting main body is configured as a square hollow structure, including two limiting plates arranged in parallel with each other, and the two limiting plates abut against the inner wall of the limiting groove.

[0014] The inclined edge is formed at the edges of the two limiting plates, and the inclined directions and inclined angles of the inclined edges on the two limiting plates are the same.

[0015] Further optionally, a notch may be provided on the inclined edge, and the notch is clamped with the limiting edge.

[0016] Further optionally, the limiting groove and the limiting feet are provided in pairs, and multiple pairs of the limiting grooves and limiting feet are provided and symmetrically arranged.

[0017] Further optionally, the first claw and the second card hole are clamped to form a first clamping structure, and multiple first clamping structures are provided.

[0018] The second claw and the first clamping hole are clamped to form a second clamping structure, and multiple second clamping structures are provided.

[0019] The clamping directions of the multiple first clamping structures and / or the second clamping structures are different.

[0020] In a second aspect, there is provided an electrical box, including an electrical box body and a cover body. The electrical box body and the cover body are provided with the above-mentioned electrical box connection structure, and the electrical box body and the box cover are connected through the electrical box connection structure.

[0021] Further optionally, an assembly hole is provided on the box cover, and electrical components provided in the electrical box body can extend out through the assembly hole.

[0022] The electrical box further includes an operating member, and the operating member is connected to the electrical component extending out through the assembly hole for operating the electrical component.

[0023] Further optionally, the assembly hole is configured as a counterbore, and a part of the operating member can be embedded into the assembly hole.

[0024] In a third aspect, there is provided an electrical device including the above-mentioned electrical box, and some electrical components in the electrical device are installed in the electrical box.

[0025] In the present invention, the electrical box body and the cover body are connected together by providing a clamping structure and a limiting structure, so that the connection is more convenient and the appearance is more beautiful. The setting of the limiting structure makes the assembly accuracy of the two higher, avoiding the influence on the internal electrical components caused by assembly misalignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By referring to the accompanying drawings and describing its exemplary embodiments in detail, the above and other objects, features, and advantages of the present disclosure will become more apparent. The following described drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 Showing a schematic structural diagram of the cover body of the present invention;

[0028] Figure 2 Showing a schematic structural diagram of the electrical box body;

[0029] Figure 3 Showing a schematic diagram of the closed state of the cover body and the electrical box body;

[0030] Figure 4 Showing a partial cross-sectional schematic diagram of the closed state of the cover body and the electrical box body;

[0031] Figure 5 Showing a schematic diagram of the cooperation state of the limiting structure.

[0032] In the figure:

[0033] 10 - electrical box body; 11 - first clamping claw; 12 - first clamping hole; 13 - limiting groove; 131 - limiting edge; 14 - positioning hole; 20 - cover body; 21 - second clamping claw; 22 - second clamping hole; 23 - limiting foot; 231 - limiting main body; 2311 - limiting plate; 2312 - connecting plate; 232 - limiting part; 24 - positioning post; 25 - assembly hole; 30 - operating member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. "Plural" generally includes at least two, but does not exclude the case of including at least one.

[0036] It should be understood that the term " / and" used herein is only a relational expression describing associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0037] It should also be noted that the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such commodity or system. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the said element.

[0038] The present invention realizes the connection between the lid and the electrical appliance box body by providing a clamping structure on the electrical appliance box body and the lid, improves the reliability of the clamping structure by providing different types of clamping structures, endows it with anti-disassembly ability, and simplifies the installation procedure. In addition, by providing a limiting foot and a limiting groove, the lid and the electrical appliance box body are limited, so that the lid and the electrical appliance box body can be accurately matched and cannot move relative to each other, ensuring the installation accuracy.

[0039] As Figure 1 、 Figure 2 shown, the electrical appliance box connection structure provided by the present invention includes a first claw 11, a first clamping hole 12 and a limiting groove 13 provided on the electrical appliance box body 10, and a second claw 21, a second clamping hole 22 and a limiting foot 23 provided on the lid 20.

[0040] The first claw 11 is snap-fitted with the second card hole 22 to form a first snap-fitting structure, and the first card hole 12 is snap-fitted with the second claw 21 to form a second snap-fitting structure. The first snap-fitting structure and the second snap-fitting structure respectively complete the snap-fitting to connect the electrical box body 10 and the cover body 20.

[0041] Preferably, the snap-fitting directions of multiple first snap-fitting structures and / or multiple second snap-fitting structures are different, so that the snap-fitting between the electrical box body 10 and the cover body 20 is more reliable and has anti-disassembly performance. The snap-fitting direction is the direction in which the claw deforms during the snap-fitting process, which will be described in detail below.

[0042] Specifically,

[0043] As Figure 1 、 Figure 2 、 Figure 3 shown, the first claw 11 is formed on the side wall of the electrical box body 10, and the second card hole 22 is formed on the side wall of the cover body 20 and is correspondingly arranged with the first claw 11. Preferably, multiple first claws 11 are provided, and each first claw 11 corresponds to a second card hole 22. In a specific embodiment, the snap-fitting portions of the multiple first claws 11 face the same direction. When snap-fitting, the multiple first claws 11 elastically deform in the same direction to complete the snap-fitting. Alternatively, in other embodiments, the multiple first claws 11 face different directions, and during the snap-fitting process, the multiple first claws 11 can elastically deform in different directions to complete the snap-fitting.

[0044] As Figure 2 shown, in this embodiment, two first claws 11 are provided, and the snap-fitting directions of the two first claws 11 are the same. And in this embodiment, the second card hole 22 is configured as a notch, or can also be set as a closed hole-like structure. Further, in other embodiments, the second card hole 22 can also be set as a convex card block structure.

[0045] As Figure 1 shown, the second claw 21 is arranged on the cover body 20, the first card hole 12 is arranged on the cover body 20, and the second claw 21 is correspondingly arranged with the first card hole 12. Preferably, multiple second claws 21 and first card holes 12 are provided, and each second claw 21 corresponds to a first hole. In a specific embodiment, the first card hole 12 is arranged on the bottom wall of the electrical box body 10. When the cover body 20 is covered on the electrical box body 10, the second claw extends into the first card hole 12 and performs snap-fitting.

[0046] In this embodiment, two second claws 21 are provided. The clamping directions of the two second claws 21 are opposite and they are arranged oppositely, so that the anti-disassembly and anti-loosening effects are better. When the two second claws 21 complete the clamping, the two second claws 21 simultaneously abut against the inner sides of the respective first clamping holes 12 with forces in opposite directions, so that they can restrict each other and prevent loosening.

[0047] Furthermore, as Figure 4 shown, a hook is formed at the end of the second claw 21. When clamping, the hook is clamped with the first clamping hole 12. The hooks of the two second claws 21 face in opposite directions, that is, the direction of the hook is opposite to the clamping direction. Preferably, on the second claw 21, a ridge is formed on the side opposite to the side where the hook is formed. The ridge is connected to the second claw 21 and the cover body 20. Preferably, the ridge is configured as a plate-like structure, and the width gradually decreases from the connection of the second claw 21 and the cover body 20 towards the hook direction. Thus, the strength of the second claw 21 is increased, preventing it from breaking during the clamping process. Moreover, after the clamping is completed, it can effectively abut against the inner side of the first clamping hole 12, improving the reliability of the clamping. At the same time, the ridge enables the hook on the second claw 21 to undergo a certain deformation in the clamping direction, facilitating the installation and disassembly of the second claw 21.

[0048] Preferably, a convex structure is provided at the position on the first clamping hole 12 where the hook of the second claw 21 is clamped. The hook of the second claw 21 is clamped onto the convex structure. The contact surface between the convex structure and the claw is preferably configured as a cylindrical surface or a spherical surface, reducing the contact surface between the hook and it during clamping, thereby reducing the frictional force and facilitating installation. In addition, the setting of the convex structure increases the thickness of the clamping position of the first clamping hole 12, making the hook more firmly clamped after being clamped with it.

[0049] Similarly, the first claw 11 also includes a hook with a similar structure, and in order to increase the strength of the first claw 11, a ridge structure can also be provided.

[0050] Preferably, in this embodiment, the distance between the first clamping structure and the second clamping structure is relatively large, and the clamping directions of the claws of the first clamping structure and the claws of the second clamping structure are different. After the clamping is completed, they will all abut against the inner sides of their respective corresponding clamping holes, restricting each other and preventing loosening, so as to achieve the effects of anti-disassembly and anti-loosening.

[0051] As Figure 5 shown, the limiting feet 23 are inserted into the limiting grooves 13 to limit the cover body 20 and the electrical box body 10. Moreover, a limiting portion is provided on the limiting feet 23, and the limiting portion can be engaged with the edge of the limiting groove 13 to limit the cover body 20 through the limiting feet 23 and the limiting portion.

[0052] Preferably, the limiting feet 23 are formed on the inner side wall of the cover body 20 and include a limiting main body 231 and a limiting portion 232 formed at the end of the limiting main body 231. The limiting portion 232 includes an inclined edge. The limiting main body 231 extends into the limiting groove 13 and forms a primary limit with the inner wall of the limiting groove 13. The limiting portion 232 abuts against the limiting edge 131 of the limiting groove 13 to form a secondary limit. The primary limit and the secondary limit perform limiting in different directions, improving the limiting reliability. The primary limit and the secondary limit do not have a sequential order here but only perform limiting in different directions. Preferably, the limiting feet 23 and the second card holes 22 are located on different side walls of the cover body 20.

[0053] The limiting main body 231 is configured as a square hollow structure and includes two limiting plates 2311 arranged in parallel with each other. The two limiting plates 2311 abut against the inner wall of the card slot. The inclined edge is formed at the edge of the two limiting plates 2311, and the inclined directions and inclined angles of the inclined edges on the two limiting plates 2311 are the same.

[0054] Preferably, the limiting main body 231 may only include two limiting plates 2311. Or, in order to increase the strength, a ridge portion connected to the side wall of the cover body 20 may also be provided on each limiting plate 2311. In this embodiment, the limiting main body 231 further includes a connecting plate 2312 connected to the two limiting plates 2311. The two side edges of the connecting plate 2312 are connected to the two limiting plates 2311, and the connecting plate 2312 is also connected to the cover body 20 at the same time, thereby improving the strength of the limiting main body.

[0055] The limiting groove 13 is formed on the side wall of the electrical box body 10. The limiting groove 13 is configured as a groove-shaped structure recessed on the side wall of the electrical box body 10. A limiting edge 131 is formed on the part located outside the side wall of the electrical box body 10. The limiting main body 231 is embedded in the limiting groove 13, and the limiting portion 232 is clamped onto the limiting edge 131. And when the cover body 20 is covered on the electrical box body 10, the outer wall of the cover body 20 completely blocks the limiting groove 13, ensuring the integrity of the appearance of the electrical box and making it more beautiful.

[0056] Preferably, the height of the edge of the part of the limiting groove 13 located inside the electrical box body 10 is flush with the outer wall of the electrical box, so as to play a role in guiding and positioning the installation of the limiting feet 23. The limiting edge 131 is located outside the outer wall of the electrical box body 10 and is recessed downward. The height of the limiting edge 131 is lower than the height of the outer wall of the electrical box body 10. During the process of installing the limiting feet 23 into the limiting groove 13, the inclined edge contacts the limiting edge 131 in the later stage of installation. Due to its inclined setting, the cross-sectional dimension of the limiting feet 23 at the contact part with the limiting edge 131 increases, so that the pressure between the inclined edge and the limiting edge 131 gradually increases, so that the limiting feet 23 can be pressed tightly in the limiting groove 13, and the limiting is performed through the inclined edge and the limiting edge 131.

[0057] The inner wall of the limiting groove 13 limits the two limiting plates 2311, so that the limiting plates 2311 cooperate with the inclined edges to achieve the effect of limiting in different directions.

[0058] Preferably, a notch can also be provided on the inclined edge, and the notch is clamped with the limiting edge 131 for limiting.

[0059] The limiting grooves 13 and the limiting feet 23 are arranged in pairs, and multiple pairs of limiting grooves 13 and limiting feet 23 are provided, and multiple pairs of limiting grooves 13 and limiting feet 23 are symmetrically arranged.

[0060] Preferably, it further includes a positioning post 24 provided on the cover body 20 and a positioning hole 14 provided on the electrical box body 10. The positioning post 24 cooperates with the positioning hole 14 to position the cover body 20. The positioning post 24 can be inserted into the positioning hole 14. During the installation process, the positioning post 24 is inserted into the positioning hole 14, which can position the installation of the cover body 20. And after the installation is completed, the positioning post 24 and the positioning hole 14 also play a certain limiting role, so as to realize the double limiting of the positioning post 24 and the limiting foot 23 and ensure the precise installation of the cover body 20.

[0061] The present invention also provides an electrical box, which includes the above-mentioned electrical box body 10 and cover body 20. The electrical box body 10 and the cover body 20 are provided with the above-mentioned connection structure, and the cover body 20 is connected to the electrical box body 10 through the above-mentioned connection structure, realizing the precise positioning and reliable connection of the connection between the cover body 20 and the electrical box body 10.

[0062] Preferably, an assembly hole 25 is provided on the box cover, and the electrical components provided in the electrical box body 10 can extend out through the assembly hole 25. The electrical box further includes an operating member 30, and the operating member 30 is connected to the electrical component extending out through the assembly hole 25 for operating the electrical component. Preferably, the operating member 30 can be a knob, a button, etc., a component capable of operating the electrical component, and needs to be placed outside the electrical box for convenient operation. In this embodiment, the operating member 30 is a knob.

[0063] Preferably, the assembly hole 25 is configured as a counterbore, and a part of the operating member 30 can be embedded in the assembly hole 25, so that the operating member 30 can be used to block the assembly hole 25, improving the overall aesthetics after the installation of the operating member 30. And the diameter of the upper circular surface of the assembly hole 25 is larger than the diameter of the lower circular surface, which is very convenient for the knob to be assembled and can ensure that it cannot be easily removed when taken down.

[0064] The present invention also provides an electrical device, which includes the above-mentioned electrical box. Electrical components are installed in the electrical box, and the electrical box is used to protect the electrical components. The electrical device includes household appliances such as oil-filled radiators, air conditioners, electric fans, humidifiers, or other electrical devices that require the installation of an electrical box.

[0065] In summary, the present invention realizes the assembly of the electrical box without screws through the clamping structure, the limiting structure, and the positioning structure, making its assembly more convenient and fast, reducing the use of screws, and thus reducing production costs. Moreover, the screwless installation makes the overall structure of the electrical box more beautiful and can be directly used as a part of the outer panel of the electrical appliance.

[0066] The exemplary embodiments of the present disclosure have been specifically illustrated and described above. It should be understood that the present disclosure is not limited to the detailed structures, settings, or implementation methods described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent settings included within the spirit and scope of the appended claims.

Claims

1. An electrical box connection structure, characterized in that, it includes: a first claw, a first card hole and a limit groove provided on the electrical box body, and a second claw, a second card hole and a limit foot provided on the cover body, the first claw is clamped with the second card hole, and the first card hole is clamped with the second claw, the limit foot includes a limit main body and a limit portion formed on the limit main body, the limit main body extends into the limit groove, the limit main body and the inner wall of the limit groove cooperate to form a primary limit, the limit portion is formed at the end of the limit main body, and the limit portion includes an inclined edge; the limit groove is formed on the side wall of the electrical box body, the limit groove is configured as a groove-shaped structure recessed in the side wall of the electrical box body, a limit edge is formed on one side of the limit groove, the limit groove includes the limit edge, the limit portion abuts against the limit edge, and the limit portion and the limit edge form a secondary limit, wherein the primary limit and the secondary limit perform limiting in different directions.

2. The electrical box connection structure according to claim 1, characterized in that, it further includes a positioning post provided on the cover body and a positioning hole provided on the electrical box body, and the positioning post and the positioning hole cooperate to position the cover body.

3. The electrical box connection structure according to claim 1, characterized in that, the limit main body is configured as a square hollow structure, including two limit plates arranged in parallel, and the two limit plates abut against the inner wall of the limit groove, the inclined edge is formed at the edge of the two limit plates, and the inclined directions and inclined angles of the inclined edges on the two limit plates are the same.

4. The electrical box connection structure according to claim 3, characterized in that, a notch is further provided on the inclined edge, and the notch is clamped with the limit edge.

5. The electrical box connection structure according to claim 3, characterized in that, the limit groove and the limit foot are provided in pairs, and multiple pairs of the limit groove and the limit foot are provided, and multiple pairs of the limit groove and the limit foot are symmetrically arranged.

6. The electrical box connection structure according to any one of claims 1-5, characterized in that, the first claw and the second card hole are clamped to form a first clamping structure, and multiple first clamping structures are provided, the second claw and the first card hole are clamped to form a second clamping structure, and multiple second clamping structures are provided, the clamping directions of the multiple first clamping structures and / or the second clamping structures are different.

7. An electrical box, characterized in that, it includes an electrical box body and a cover body, and the electrical box body and the cover body are provided with the electrical box connection structure according to any one of claims 1-6, and the electrical box body and the box cover are connected through the electrical box connection structure.

8. The electrical box according to claim 7, characterized in that, assembly holes are provided on the box cover, and electrical components provided in the electrical box body can extend out through the assembly holes, the electrical box further includes an operating member, and the operating member is connected to the electrical component extending out through the assembly hole for operating the electrical component.

9. The electrical box according to claim 8, characterized in that, The assembly hole is configured as a counterbore, and a part of the operating member can be embedded into the assembly hole.

10. An electrical device, characterized in that, it includes the electrical box according to any one of claims 7-9, and some of the electrical components in the electrical device are installed in the electrical box.

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