Plug box for power distribution system
By setting a spiral spring and plug rod structure in the plug of the plug box, the mechanical damage caused by repeated insertion and removal of the plug contacts and copper grooves is solved, and a stable electrical connection is achieved.
Patent Information
- Application Number
- CN202421661365.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-07-15
AI Technical Summary
In the prior art, the plug contacts and copper grooves are prone to gaps or slight wear after repeated insertion and removal, affecting the stability of the connection.
Two spiral springs are arranged in the plug of the plug box. The spiral springs have a gap in the horizontal direction. Through the fitting of the insertion rod and the abutment plate, the driving contacts move to abut with the copper grooves to avoid mechanical damage.
It effectively prevents mechanical damage caused by repeated insertion and removal between the contacts and the copper grooves, and improves the stability and service life of the connection.
Smart Images
Figure CN223124555U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of distribution systems, and more specifically, to a plug-in box for a distribution system. Background Art
[0002] The busbar trunking plug-in system is a common feeder method for a distribution system. Contacts are provided on the surface of the plug, and grooves for cooperating with the plug are provided on the copper busbar. Generally, the plug-in box and the copper busbar of the busbar trunking are designed with a direct plug-in structure, that is, the plug of the plug-in box is inserted into the groove of the copper busbar, and the plug is attached to the copper busbar through the contacts to achieve the purpose of power taking.
[0003] However, in actual use, gaps and slight wear will occur between the contacts of the plug after repeated plugging and unplugging and the groove wall of the copper busbar groove. In severe cases, pit points will appear on the groove wall of the copper busbar groove, thus affecting the use. Utility Model Content
[0004] In view of this, the embodiments of the present application provide a plug-in box for a distribution system to solve the technical problem that gaps or slight wear occur between the contacts of the plug after repeated plugging and unplugging and the groove wall of the copper busbar groove, thereby affecting the connection between the two in the related art.
[0005] In order to achieve the above object, the embodiments of the present application provide the following technical solutions:
[0006] A plug-in box for a distribution system, comprising:
[0007] A sleeve, an inner cavity is provided inside the sleeve;
[0008] A plug-in box body, at least one group of plugs is provided on the outer wall of the plug-in box body, a chamber is provided inside the plug, and a hole is provided on the bottom wall of the plug;
[0009] Two helical springs, the two helical springs are located inside the chamber, the first ends of the two helical springs are connected to the top wall of the chamber, and there is a gap between the two helical springs;
[0010] A contact, the contact is located inside the chamber, a connecting plate is provided at the top end of the contact, the top wall of the connecting plate is connected to the second ends of the two helical springs; a contact plate is provided at a position of the connecting plate close to the end of the plug, and an obtuse angle is formed between the bottom wall of the contact plate and the bottom wall of the connecting plate; the contact is adapted to the hole and is located directly above the hole;
[0011] The plug rod is slidably arranged at the end of the plug and extends into the chamber. The outer diameter of the plug rod is greater than the distance between the connecting plate and the top wall of the chamber, and the outer diameter of the plug rod is less than the distance between the two spiral springs. The plug rod is located beside the abutting plate.
[0012] In some possible implementation manners, the end face of the plug rod in contact with the abutting plate is provided with an arc surface.
[0013] In some possible implementation manners, the contact head is spherical, and the outer diameter of the contact head is less than the outer diameter of the hole.
[0014] In some possible implementation manners, the connecting plate, the abutting plate and the contact head are integrally formed.
[0015] In some possible implementation manners, the plug rod includes a bulging part and a plugging part;
[0016] The bulging part is located outside the chamber, and a thread is provided at a position of the plugging part close to the bulging part;
[0017] The plug rod is connected to the end of the plug through the thread.
[0018] In some possible implementation manners, a frustum is provided on a part of the plug rod located in the chamber, and the outer diameter of the end of the frustum close to the abutting plate is smaller than the outer diameter of the other end.
[0019] The plugging box for a power distribution system provided by the embodiment of the present application at least has the following beneficial effects:
[0020] In the plugging box for a power distribution system provided by the embodiment of the present application, two spiral springs are arranged in the plug of the plugging box body, and there is a gap between the two spiral springs in the horizontal direction. The two ends of the two spiral springs are respectively connected to the top wall of the chamber and the connecting plate, and the connecting plate is fixedly connected to the contact head. At the same time, an abutting plate is also connected to one end of the connecting plate, and the included angle formed between the two is an obtuse angle. In addition, a plug rod is slidably arranged at the end of the plug, and the plug rod contacts the abutting plate through the gap between the two spiral springs. When the plug rod contacts the abutting plate, as the plug rod gradually penetrates, the abutting plate and the connecting plate will continuously stretch the spiral spring and move the contact towards the direction of the hole of the plug until it moves to a position where it abuts against the copper row groove to achieve the purpose of taking electricity. By adopting the above structural design, the movement of the contact can be driven through the structure of the plug rod and the spiral spring, so as to prevent the mechanical damage problem caused by repeated plugging and unplugging between the contact and the copper row groove. Description of the Drawings
[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0022] Figure 1 Structural schematic diagram of the plug-in box for the power distribution system provided by the embodiment of the present application;
[0023] Figure 2 Bottom view structural schematic diagram of the plug of the plug-in box for the power distribution system provided by the embodiment of the present application;
[0024] Figure 3 Side cross-sectional view of the plug of the plug-in box for the power distribution system provided by the embodiment of the present application;
[0025] Figure 4 Distribution structure schematic diagram of the spiral spring of the plug of the plug-in box for the power distribution system provided by the embodiment of the present application.
[0026] In the figure:
[0027] 100, plug-in box body; 200, plug; 210, chamber; 220, hole; 300, spiral spring; 400, contact; 500, connection plate; 600, abutting plate; 700, plug rod; 710, arc surface; 720, enlarged part; 730, plug-in part. Specific embodiments
[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
[0029] As Figures 1-4 shown, the plug-in box for the power distribution system provided by the embodiment of the present application includes a plug-in box body 100, two spiral springs 300, a contact 400, and a plug rod 700. Among them, multiple groups of plugs 200 are provided on the outer wall of the plug-in box body 100, and the plug-in box body 100 is connected to the copper bar groove of the bus duct through multiple groups of plugs 200. Specifically, a metal contact 400 is provided on each group of plugs 200, and the plug 200 contacts the copper bar groove of the bus duct through the metal contact 400, thereby realizing the power-taking function.
[0030] In this embodiment, a chamber 210 is provided inside the plug 200. A hole 220 is formed in the bottom wall of the plug 200, i.e., the bottom wall of the chamber 210, in the thickness direction. The hole 220 is adapted to the metal contact 400.
[0031] Two spiral springs 300 are located inside the chamber 210. Specifically, the two spiral springs 300 are arranged side by side inside the chamber 210 of the plug 200, and there is a certain gap between the two spiral springs 300 in the horizontal direction. In addition, the first ends of the two spiral springs 300 are respectively fixedly connected to the wall surface at the top end of the chamber 210.
[0032] The contact 400 made of a metal material is located inside the chamber 210 of the plug 200, and the bottom end of the contact 400 is located at a position above the hole 220. The contact 400 can be spherical, and the outer diameter of the contact 400 is smaller than the outer diameter of the hole 220. A connection plate 500 is fixedly provided at the top end of the contact 400, and the contact 400 is fixedly connected to the second ends of the two spiral springs 300 through the connection plate 500. A contact plate 600 is also fixedly connected to the connection plate 500 near the end of the contact 400. Among them, an angle is formed between the bottom surface of the contact plate 600 and the bottom surface of the connection plate 500, and this angle is an obtuse angle.
[0033] Preferably, the contact 400, the connection plate 500 and the contact plate 600 can be integrally formed, which can improve the overall structural strength and thus extend the service life of the components.
[0034] In this embodiment, the plug rod 700 is inserted into the end of the plug 200 and extends into the chamber 210 of the plug 200. Among them, the outer diameter of the end of the plug rod 700 located inside the chamber 210 is smaller than the gap between the two spiral springs 300, and the outer diameter of the plug rod 700 located inside the chamber 210 is not greater than the distance between the connection plate 500 and the top wall of the chamber 210. This enables the plug rod 700 to force the two spiral springs 300 to elongate when it extends to the position between the connection plate 500 and the top wall of the chamber 210, thereby driving the contact to move towards the direction of the hole 220.
[0035] In the plug-in box for a power distribution system provided in the embodiments of the present application, two spiral springs 300 are arranged inside the plug 200 of the plug-in box body 100, and there is a gap between the two spiral springs 300 in the horizontal direction. Both ends of the two spiral springs 300 are connected to the top wall of the chamber 210 and the connection plate 500 respectively, and the connection plate 500 is fixedly connected to the contact 400. At the same time, one end of the connection plate 500 is also connected with an abutting plate 600, and the included angle formed between the two is an obtuse angle. In addition, a plug rod 700 is slidably arranged at the end of the plug 200, and the plug rod 700 is in contact with the abutting plate 600 through the gap between the two spiral springs 300. When the plug rod 700 is in contact with the abutting plate 600, as the plug rod 700 gradually penetrates, the abutting plate 600 and the connection plate 500 will continuously stretch the spiral spring 300 and move the contact towards the direction of the hole 220 of the plug 200 until it moves to a position where it abuts against the copper row groove to achieve the purpose of power taking. With the above structural design, the movement of the contact can be driven through the structure of the plug rod 700 and the spiral spring 300 to prevent mechanical damage problems caused by repeated plugging and unplugging between the contact and the copper row groove.
[0036] In some embodiments, the plug rod 700 is located beside the abutting plate 600, and an arc surface 710 is provided at the end of the plug rod 700 in contact with the abutting plate 600. By providing the arc surface 710, the smoothness of the sliding between the plug rod 700 and the abutting plate 600 can be improved, thereby facilitating the subsequent operations of the staff.
[0037] In some embodiments, the plug rod 700 includes a bulging part 720 and a plugging part 730. The bulging part 720 is located outside the chamber 210 of the plug 200 to prevent the plug rod 700 from being completely inserted into the plug 200. A part of the plugging part 730 is provided with threads, and the plugging part 730 and the plug 200 can be in a threaded connection structure, so as to prevent the plugging part 730 from moving randomly between the chambers 210 of the plug 200.
[0038] In some embodiments, the part of the plug rod 700 located inside the chamber 210 of the plug 200 can be a frustum 800, and the outer diameter of the frustum 800 at the end close to the abutting plate 600 is smaller than the outer diameter of its other end. In this way, when the plug rod 700 continuously extends between the connection plate 500 and the top wall of the chamber 210, the spiral spring 300 can be continuously stretched to ensure that the contact can fully contact the copper row groove, thereby ensuring the normal progress of the power taking process.
[0039] In this specification, the embodiments or implementation manners are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
[0040] It should be noted that the phrases such as "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining specific features, structures or characteristics with an embodiment, implementing such features, structures or characteristics in other embodiments, whether explicitly or implicitly described, is within the knowledge scope of those skilled in the art.
[0041] Generally speaking, terms should be understood at least in part by their use in the context. For example, at least in part according to the context, the term "one or more" used in the text can be used to describe any feature, structure or characteristic in the sense of singularity, or can be used to describe a combination of features, structures or characteristics in the sense of plurality. Similarly, at least in part according to the context, terms such as "a" or "the" can also be understood to convey singular usage or plural usage.
[0042] It should be easily understood that the terms "on", "above" and "over" in the present disclosure should be interpreted in the broadest manner, so that "on" not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over something", but may also include the meaning of "above" or "over something" without intermediate features or layers therebetween (i.e., directly on something).
[0043] In addition, for the convenience of description, spatial relative terms such as "below", "beneath", "under", "above", "over" etc. may be used in the text to describe the relationship of one element or feature relative to other elements or features as shown in the figure. Spatial relative terms are intended to include different orientations of the device in use or operation other than the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive words used in the text can be correspondingly interpreted as well.
[0044] The term "substrate" used in the text refers to the material on which subsequent material layers are added. The substrate itself can be patterned. The material added on top of the substrate can be patterned or can remain unpatterned. In addition, the substrate can include a wide range of materials, such as silicon, germanium, gallium arsenide, indium phosphide, etc. Alternatively, the substrate can be made of non-conductive materials (such as glass, plastic or sapphire wafers, etc.).
[0045] As used herein, the term "layer" may refer to a portion of a material that includes a region having a certain thickness. The layer may extend over the entire underlying or overlying structure, or may have a smaller extent than the underlying or overlying structure. Additionally, the layer may be a region of a homogeneous or heterogeneous continuous structure, the thickness of which is less than the thickness of the continuous structure. For example, the layer may be located between the top and bottom surfaces of the continuous structure or between any pair of lateral planes at the top and bottom surfaces. The layer may extend laterally, vertically, and / or along a tapered surface. A substrate may be a layer, may include one or more layers therein, and / or may have one or more layers located thereon, above it, and / or below it. A layer may include multiple layers. For example, an interconnect layer may include one or more conductors and contact layers (in which contacts, interconnect lines, and / or vias are formed) and one or more dielectric layers.
[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A plug-in box for a power distribution system, characterized in that, Comprising: A plug-in box body (100), at least one set of plugs (200) is provided on the outer wall of the plug-in box body (100), a chamber (210) is provided inside the plug (200), and a hole (220) is provided on the bottom wall of the plug (200); Two helical springs (300), the two helical springs (300) are located inside the chamber (210), the first ends of the two helical springs (300) are connected to the top wall of the chamber (210), and there is a gap between the two helical springs (300) in the horizontal direction; A contact (400), the contact (400) is located inside the chamber (210), a connecting plate (500) is provided at the top end of the contact (400), and the top wall of the connecting plate (500) is connected to the second ends of the two helical springs (300); A contact plate (600) is provided at a position of the connecting plate (500) close to the end of the plug (200), and an obtuse angle is formed between the bottom wall of the contact plate (600) and the bottom wall of the connecting plate (500); The contact (400) is adapted to the hole (220) and is located directly above the hole (220); A plug rod (700), the plug rod (700) is slidably arranged at the end of the plug (200) and extends into the chamber (210), the outer diameter of the plug rod (700) is greater than the distance between the connecting plate (500) and the top wall of the chamber (210), the outer diameter of the plug rod (700) is less than the distance between the two helical springs (300), and the plug rod (700) is located beside the contact plate (600).
2. The plug-in box for a power distribution system according to claim 1, wherein: An arc surface (710) is provided on the end face of the plug rod (700) in contact with the contact plate (600).
3. The plug-in box for a power distribution system according to claim 1, characterized in that: The contact (400) is spherical, and the outer diameter of the contact (400) is less than the outer diameter of the hole (220).
4. The plug-in box for a power distribution system according to claim 1, wherein: The connecting plate (500), the contact plate (600) and the contact (400) are integrally formed.
5. The plug-in box for a power distribution system according to claim 1, characterized in that: The plug rod (700) includes a bulging part (720) and a plugging part (730); The bulging part (720) is located outside the chamber (210), and a thread is provided at a position where the plugging part (730) is close to the bulging part (720); The plug rod (700) is connected to the end of the plug (200) through the thread.
6. The plug-in box for a power distribution system according to claim 1, characterized in that: A frustum is provided on the part of the plug rod (700) located inside the chamber (210), and the outer diameter of the end of the frustum close to the contact plate (600) is smaller than the outer diameter of the other end.