Through-wall terminal

Abstract

The utility model relates to the technical field of electrical equipment, and discloses a through-wall terminal, which comprises a protective shell, a socket, a locking cap and a copper bar, a threading end of the protective shell is detachably connected with the locking cap, the other end of the protective shell is detachably connected with the socket, the copper bar is mounted in a copper bar mounting groove of the socket, one end of the socket is inserted into the protective shell, and the other end of the socket is inserted into the protective shell. The other end of the socket is in bolted connection with the electrical equipment, and a sealing washer is arranged between the socket and the electrical equipment and used for enhancing the sealing performance of the joint of the socket and the electrical equipment. The socket is in bolted connection with the electrical equipment, the connection structure is simple, disassembly and assembly are convenient, disassembly and maintenance of the through-wall terminal are facilitated, the through-wall terminal can be rapidly replaced when damaged, and interchangeability and maintenance performance are good; the sealing washer is arranged between the socket and the electrical equipment, so that the pre-pressing sealing installation of the socket is facilitated, the sealing waterproof performance of the joint of the socket and the electrical equipment is improved, the waterproof grade can reach the IPX6 grade, and the socket is safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, and more specifically to a through-wall terminal. Background Art

[0002] Through-the-wall terminals are widely used in various electrical equipment to achieve electrical connections in different spaces. Existing through-the-wall terminals are designed as one piece with electrical equipment, which is inconvenient for regular maintenance of through-the-wall terminals and internal components of electrical equipment, and the interchangeability of parts is low and the maintenance cost is high.

[0003] In summary, how to achieve rapid maintenance of through-wall terminals and electrical equipment is a problem that currently needs to be solved urgently by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a through-wall terminal, the socket of the through-wall terminal is connected to the electrical equipment by bolts, an independent plug-in board of the socket is realized, the rapid maintenance of the through-wall terminal and the electrical equipment is convenient, and the interchangeability is strong.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A through-wall terminal comprises a protective shell, a socket, a locking cap and a copper busbar, wherein the threading end of the protective shell is detachably connected to the locking cap, the other end of the protective shell is detachably connected to the socket, the copper busbar is installed in a copper busbar installation groove of the socket, one end of the socket is inserted into the protective shell, the other end of the socket is bolted to an electrical device, and a sealing gasket is provided between the socket and the electrical device, the sealing gasket is used to enhance the sealing of the connection between the socket and the electrical device.

[0007] Preferably, a copper bar retaining rib is provided between two adjacent copper bar installation grooves, and the height of the copper bar retaining rib is greater than the height of the copper bar.

[0008] Preferably, the socket is provided with a glue injection port connected to the copper busbar mounting groove, and the glue injection port is used for injecting glue to seal the copper busbar.

[0009] Preferably, the socket is provided with a buckle, and the outer surface of the protective shell is provided with a bayonet for engaging with the buckle.

[0010] Preferably, the outer side surface of the buckle is provided with an anti-slip pattern for increasing friction.

[0011] Preferably, a sealing plug is sleeved in the wire threading hole of the protective shell, a clamping ring is sleeved in the through hole of the sealing plug, and a plurality of through clamping ring wire threading holes are provided in the clamping ring.

[0012] Preferably, the threading holes of the clamping ring are evenly distributed along the circumferential direction of the clamping ring.

[0013] Preferably, the protective shell is an injection-molded part made of highly flame-retardant material.

[0014] The through-wall terminal provided by the utility model is connected with the socket and the electrical equipment by bolts, and the connection structure is simple and easy to disassemble and assemble, which facilitates the disassembly and maintenance of the through-wall terminal, and can be quickly replaced when the through-wall terminal is damaged, and has good interchangeability and maintenance performance;

[0015] A sealing gasket is provided between the socket and the electrical equipment, which is beneficial to the pre-pressed sealing installation of the socket and improves the sealing and waterproof performance of the connection between the socket and the electrical equipment. The waterproof grade can reach IPX6 grade, which is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 An exploded schematic diagram of a specific embodiment of the through-wall terminal provided by the utility model;

[0018] Figure 2 This is a schematic diagram of the assembly of the socket and the copper busbar;

[0019] Figure 3 It is a cross-sectional schematic diagram in the AA direction;

[0020] Figure 4 An exploded schematic diagram of the socket and the sealing gasket;

[0021] Figure 5 is a schematic diagram of the structure of a sealing gasket;

[0022] Figure 6 It is a schematic diagram of the assembly of the protective housing and the socket in the main viewing direction;

[0023] Figure 7 It is a schematic diagram of the assembly of the protective housing and the socket in the side view direction;

[0024] Figure 8 It is a cross-sectional schematic diagram in the BB direction;

[0025] Fig. 9 An exploded view of the threading end of the protective housing.

[0026] Figure 1-Figure 9 middle:

[0027] 1 is a locking cap, 2 is a glue stick, 3 is a clamping ring, 31 is a threading hole for the clamping ring, 4 is a sealing plug, 5 is a protective shell, 51 is a threading hole for the protective shell, 52 is a bayonet, 6 is a socket, 61 is a copper bar retaining rib, 62 is a glue injection port, 63 is a buckle, 7 is a sealing gasket, and 8 is a copper bar. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The core of the utility model is to provide a through-wall terminal, the socket of the through-wall terminal is connected with the electrical equipment by bolts, an independent plug-in board of the socket is realized, rapid maintenance of the through-wall terminal and the electrical equipment is convenient, and interchangeability is strong.

[0030] The through-wall terminal provided by the utility model comprises a protective shell 5, a socket 6, a locking cap 1 and a copper busbar 8. The threading end of the protective shell 5 is detachably connected to the locking cap 1, and the other end of the protective shell 5 is detachably connected to the socket 6. The copper busbar 8 is installed in the copper busbar installation groove of the socket 6. One end of the socket 6 is inserted into the protective shell 5, and the other end of the socket 6 is bolted to the electrical equipment. A sealing gasket 7 is provided between the socket 6 and the electrical equipment. The sealing gasket 7 is used to enhance the sealing of the connection between the socket 6 and the electrical equipment.

[0031] Among them, the threading end of the protective shell 5 is detachably connected to the locking cap 1 so that the locking cap 1 constrains and fixes the radial and circumferential position of the wiring harness; in order to facilitate processing and assembly, the locking cap 1 is usually threadedly connected to the threading end of the protective shell 5, and the through hole of the locking cap 1 is used to cooperate with the protective shell threading hole 51 of the protective shell 5 to limit the wiring harness.

[0032] The socket 6 is inserted into the protective shell 5, and the protective shell 5 is used to provide dustproof and insulation protection for the socket 6 and the copper bus 8; the protective shell 5 can be made of conventional PC board materials, but in order to enhance its corrosion resistance and fire resistance, preferably, the protective shell 5 can be set as an injection molded part of a high flame retardant material, which is corrosion-resistant and has good fire resistance, which is conducive to ensuring the stable transmission of current and improving the safety of the through-wall terminal in extremely bad weather.

[0033] The specific material, structure and size of the protective shell 5 are determined according to actual production needs with reference to the prior art, and will not be described in detail here.

[0034] The socket 6 is provided with a plurality of copper bar installation grooves, in which the copper bar 8 is installed. One side of the copper bar 8 is connected to the external wiring harness by bolts, and the other side of the copper bar 8 is connected to the internal wiring harness of the electrical equipment by bolts, thereby connecting the external wiring harness and the internal wiring harness of the electrical equipment.

[0035] The specific number, structure, shape, size and distribution of the copper busbar installation slots are determined according to actual production needs and with reference to existing technologies, and will not be elaborated here.

[0036] In order to accurately position the copper busbar 8, preferably, a copper busbar retaining rib 61 can be provided between two adjacent copper busbar mounting grooves. The height of the copper busbar retaining rib 61 is greater than the height of the copper busbar 8. The copper busbar retaining rib 61 can effectively limit the copper busbar 8 to prevent the copper busbar 8 from entering the adjacent copper busbar mounting grooves during assembly.

[0037] Preferably, in order to better seal, the socket 6 may be provided with a glue injection port connected to the copper busbar mounting groove, and the glue injection port is used to inject glue to seal the copper busbar 8. The glue injection port can guide the sealant into between the copper busbar and the socket 6, avoiding the presence of a cavity 62 without sealant between the two, and significantly enhancing the sealing and waterproof performance of the connection between the copper busbar 8 and the wiring harness.

[0038] One end of the socket 6 is detachably connected to the protective shell 5, and the other end is bolted to the electrical equipment, so the socket 6 can be removed from the electrical equipment to inspect and replace the socket 6; the connection method between the socket 6 and the protective shell 5 is not limited, and can be specifically set to bolt connection, pin connection, snap connection, etc.

[0039] In order to ensure the sealing of the connection between the socket 6 and the electrical equipment, a sealing gasket 7 is provided between the two. The sealing gasket 7 is designed to follow the mounting surface of the socket 6, so the shape and size of the sealing gasket 7 are the same as the shape and size of the mounting surface of the socket 6, so as to facilitate the installation pre-compression sealing of the socket 6.

[0040] The material and size of the sealing gasket 7 are determined according to the needs in actual production and with reference to the prior art, and is usually set to be a rubber sealing gasket.

[0041] In this embodiment, the socket 6 is connected to the electrical equipment by bolts, and the connection structure is simple and easy to disassemble and assemble, which facilitates the disassembly and maintenance of the through-wall terminal, and can be quickly replaced when the through-wall terminal is damaged, and has good interchangeability and maintenance performance;

[0042] A sealing gasket 7 is provided between the socket 6 and the electrical device, which is beneficial to the pre-pressed sealing installation of the socket 6 and improves the sealing and waterproof performance of the connection between the socket 6 and the electrical device. The waterproof grade can reach IP6X grade, which is safe and reliable.

[0043] Preferably, a buckle 63 may be provided on the socket 6, and a bayonet 52 may be provided on the outer surface of the protective housing 5 for engaging with the buckle 63. Compared with the conventional bolt connection, the socket 6 and the protective housing 5 are plug-in connected, which has a simple structure and a stable connection, and is convenient for disassembly, assembly and maintenance of the socket 6.

[0044] Please refer to Figure 6 , the protective shell 5 is provided with a bayonet 52 at both ends in the length direction, and the bayonet 52 is provided at 1 / 2 of the width of the protective shell 5;

[0045] The outer edge of the socket 6 is provided with a buckle 63 for engaging with the bayonet 52 , and the outer side surface of the buckle 63 is provided with an anti-slip pattern for increasing friction to prevent the buckle 63 from popping out of the bayonet 52 without external force.

[0046] During assembly, align the buckle 63 of the socket 6 and the bayonet 52 of the protective housing 5, and push the two to move toward each other, install the buckle 63 into the bayonet 52, and connect the socket 6 and the protective housing 5 by the snap fit of the buckle 63 and the bayonet 52;

[0047] On the contrary, when disassembly is required, the two are pulled away from each other to make the buckle 63 escape from the bayonet 52, thereby completing the disassembly of the socket 6 and the protective shell 5.

[0048] On the basis of the above embodiment, a sealing plug 4 may be sleeved in the protective shell threading hole 51 of the protective shell 5, a clamping ring 3 may be sleeved in the through hole of the sealing plug 4, and a plurality of through clamping ring threading holes 31 may be provided in the clamping ring 3.

[0049] The specific number, shape, size and distribution of the clamping ring threading holes 31 in the clamping ring 3 are determined according to the number and size of the wiring harnesses in actual production; in order to make the clamping force on each wiring harness relatively balanced, it is preferred that the clamping ring threading holes 31 can be arranged to be evenly distributed along the circumferential direction of the clamping ring 3.

[0050] Please refer to Fig. 9 During assembly, first install the sealing plug 4 into the protective shell threading hole 51 of the protective shell 5; then install the clamping ring 3 in the sealing plug 4, and use the clamping ring 3 to pre-press the sealing plug 4 so that the sealing plug 4 contacts and seals tightly with the inner surface of the protective shell threading hole 51; finally, pass the wiring harness sleeved in the glue stick 2 through the clamping ring threading hole 31 of the clamping ring 3, and screw the locking cap 1 to lock it.

[0051] In this embodiment, the sealing plug 4 and the clamping ring 3 form a two-layer sealing structure of the wire harness, which greatly improves the sealing performance of the wire threading end of the protective housing 5.

[0052] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0053] The above is a detailed introduction to the through-wall terminal provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A through-wall terminal, characterized in that: The invention comprises a protective shell (5), a socket (6), a locking cap (1) and a copper busbar (8); the threading end of the protective shell (5) is detachably connected to the locking cap (1); the other end of the protective shell (5) is detachably connected to the socket (6); the copper busbar (8) is installed in the copper busbar installation groove of the socket (6); one end of the socket (6) is inserted into the protective shell (5); the other end of the socket (6) is bolted to the electrical device; a sealing gasket (7) is provided between the socket (6) and the electrical device; the sealing gasket (7) is used to enhance the sealing performance of the connection between the socket (6) and the electrical device.

2. The through-wall terminal according to claim 1, characterized in that: A copper bar retaining rib (61) is provided between two adjacent copper bar installation grooves, and the height of the copper bar retaining rib (61) is greater than the height of the copper bar (8).

3. The through-wall terminal according to claim 1, characterized in that: The socket (6) is provided with a glue injection port which is in communication with the copper busbar installation groove, and the glue injection port is used for injecting glue to seal the copper busbar (8).

4. The through-wall terminal according to any one of claims 1 to 3, characterized in that: The socket (6) is provided with a buckle (63), and the outer surface of the protective shell (5) is provided with a bayonet (52) for engaging with the buckle (63).

5. The through-wall terminal according to claim 4, characterized in that: The outer side surface of the buckle (63) is provided with an anti-slip pattern for increasing friction.

6. The through-wall terminal according to any one of claims 1 to 3, characterized in that: A sealing plug (4) is sleeved in the protective shell threading hole (51) of the protective shell (5), a clamping ring (3) is sleeved in the through hole of the sealing plug (4), and a plurality of through clamping ring threading holes (31) are provided in the clamping ring (3).

7. The through-wall terminal according to claim 6, characterized in that: The threading holes (31) of the clamping ring are evenly distributed along the circumferential direction of the clamping ring (3).

8. The through-wall terminal according to any one of claims 1 to 3, characterized in that: The protective shell (5) is an injection-molded part made of a highly flame-retardant material.

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