A wall-penetrating terminal

Abstract

The utility model discloses a kind of wall-penetrating terminals, comprising: protective shell and copper bar, protective shell is provided with pass-through protective shell, copper bar is installed along first direction and penetrates passage;Wherein, first limiting structure of mutual cooperation is equipped between passage and copper bar, and for limiting copper bar displacement along first direction, second limiting structure of mutual cooperation is also equipped between passage and copper bar, and for limiting copper bar displacement along second direction;First direction and second direction are opposite.In the present scheme, after copper bar penetrates and is installed in the passage of protective shell, it is used for limiting copper bar displacement along installation direction by first limiting structure, play the effect of supporting limit, simultaneously also by second limiting structure for limiting copper bar displacement along installation reverse direction, play the effect of reverse limit, so as to realize the support and reverse limit of copper bar, which not only can avoid copper bar stress produces strain, but also facilitate on-site copper bar wiring assembly, reduce assembly personnel working strength.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a through-wall terminal. Background Technology

[0002] Through-wall terminals are widely used between various electrical devices and are an accessory product for achieving electrical connections, mainly serving a sealing and dustproof function. Existing through-wall terminals use a metal channel rigid connection method. This method requires an additional insulation layer to meet insulation performance requirements. However, during copper busbar installation, the existing through-wall terminal channel cannot support or reverse-limit the copper busbar, which may cause the copper busbar to be continuously stressed and strained. Furthermore, it is inconvenient for on-site copper busbar wiring and assembly, increasing the workload of assembly personnel. Utility Model Content

[0003] In view of this, the present invention provides a through-wall terminal that can realize the support and reverse limiting of copper busbars.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A through-wall terminal includes: a protective housing and a copper busbar, wherein a channel is provided in the protective housing to penetrate the protective housing, and the copper busbar is installed along a first direction and penetrates the channel; wherein a first limiting structure is provided between the channel and the copper busbar to restrict the displacement of the copper busbar along the first direction, and a second limiting structure is also provided between the channel and the copper busbar to restrict the displacement of the copper busbar along a second direction; the first direction is opposite to the second direction.

[0006] Preferably, the first limiting structure is distributed on both sides of the copper busbar and between the channel;

[0007] The second limiting structure is distributed on both sides of the copper busbar and between the channel.

[0008] Preferably, both the first limiting structure and the second limiting structure are groove limiting structures.

[0009] Preferably, the second limiting structure includes:

[0010] Two limiting grooves are respectively opened on the left and right walls of the copper busbar;

[0011] Two second limiting protrusions are respectively provided on the left and right walls of the channel, and are used to cooperate with the two limiting grooves of the copper busbar.

[0012] Preferably, the limiting groove is a trapezoidal limiting groove;

[0013] The second limiting protrusion is a rectangular limiting protrusion and is used to cooperate with the trapezoidal limiting groove.

[0014] Preferably, the second limiting protrusion and the limiting groove are in an interference fit.

[0015] Preferably, the left and right walls of the copper busbar are respectively provided with guide slopes that become narrower along the first direction;

[0016] The two guide ramps of the copper busbar are located on one side of the two limiting grooves of the copper busbar along the first direction.

[0017] Preferably, the first limiting structure includes:

[0018] Two first limiting protrusions are respectively disposed on the left and right sides of the copper busbar, and are located on one side of the two limiting grooves along the second direction and are adjacent to the two limiting grooves; wherein, the two first limiting protrusions of the copper busbar and the two second limiting protrusions of the channel are distributed at intervals.

[0019] Preferably, the first limiting protrusion is a trapezoidal limiting protrusion;

[0020] The second limiting protrusion is a rectangular limiting protrusion and is used to abut against the trapezoidal limiting protrusion.

[0021] Preferably, the first limiting protrusion on the right side wall of the copper busbar contacts the right side wall of the channel;

[0022] The first limiting protrusion on the left side wall of the copper busbar contacts the left side wall of the channel.

[0023] As can be seen from the above technical solution, the through-wall terminal provided by this utility model has a copper busbar installed through the channel of the protective shell. The first limiting structure is used to restrict the displacement of the copper busbar along the installation direction, which plays a supporting and limiting role. At the same time, the second limiting structure is used to restrict the displacement of the copper busbar along the opposite installation direction, which plays a reverse limiting role. Thus, the copper busbar can be supported and restricted in the opposite direction. This not only avoids the copper busbar from being strained by force, but also facilitates the on-site wiring and assembly of the copper busbar, reducing the workload of the assembly personnel. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1This is a schematic diagram of the structure of the through-wall terminal provided in an embodiment of the present utility model;

[0026] Figure 2 An exploded view of the through-wall terminal provided in an embodiment of this utility model;

[0027] Figure 3 A structural cross-sectional view of the through-wall terminal provided in an embodiment of this utility model;

[0028] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0029] Wherein, 1 is the protective shell, 11 is the first protective component, 12 is the first gasket, 13 is the toothed waterproof ring, 14 is the second gasket, and 15 is the second protective component;

[0030] 2 is a copper busbar, 21 is a limiting groove, 22 is a guide slope, and 23 is a first limiting protrusion;

[0031] 3 is the channel, and 31 is the second limiting convex. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] The through-wall terminal provided in this embodiment of the utility model, such as Figure 1 As shown, it includes: a protective housing 1 and a copper busbar 2. The protective housing 1 has a channel 3 that passes through the protective housing 1. The copper busbar 2 is installed along a first direction and passes through the channel 3. There is a first limiting structure between the channel 3 and the copper busbar 2 that cooperates with each other and is used to limit the displacement of the copper busbar 2 along the first direction. There is also a second limiting structure between the channel 3 and the copper busbar 2 that cooperates with each other and is used to limit the displacement of the copper busbar 2 along the second direction. The first direction is opposite to the second direction.

[0034] It should be noted that, as Figure 2 As shown, the protective housing 1 includes: a first protective component 11, a first gasket 12, a toothed waterproof ring 13, a second gasket 14, and a second protective component 15; as Figure 1 As shown, the first gasket 12 is disposed on the inner plate surface of the end plate of the first protective component 11, the port of the second protective component 15 is sleeved outside the port of the first protective component 11, the second gasket 14 is disposed on the inner plate surface of the end plate of the second protective component 15, and the toothed waterproof ring 13 is disposed between the port of the first protective component 11 and the port of the second protective component 15, as shown. Figure 1 As shown, the first protective component 11 has multiple through channels 3 (for example, three channels 3), each channel 3 has two channels 3, and each channel 3 is used to install the copper busbar 2 through. Each channel 3 and the copper busbar 2 are provided with a first limiting structure that cooperates with each other to limit the displacement of the copper busbar 2 in the first direction (i.e., the installation direction). This means that the copper busbar 2 is provided with support and limiting within the channel 3 to prevent the copper busbar 2 from being subjected to force and strain, thereby reducing the strain caused by the weight of the copper busbar 2. The first limiting structure is also equivalent to a support limiting structure. In addition, each channel 3 and the copper busbar 2 are also provided with a second limiting structure that cooperates with each other. The structure is used to limit the displacement of copper busbar 2 in the second direction (i.e., the opposite direction of the installation direction). In other words, after copper busbar 2 is installed, it is restricted from moving in the opposite direction of the installation direction, preventing copper busbar 2 from shaking in the opposite direction of installation. This facilitates on-site copper busbar wiring and assembly, reduces the workload of assembly personnel, and the second limiting structure is also equivalent to a reverse limiting structure. Of course, the through-wall terminal of this solution can be used for the connection between two cabinets. Through the corresponding limiting structure, some existing problems of copper busbars can be solved, that is, to provide support and reverse limiting for copper busbars in parallel cabinets, reduce the strain generated by copper busbars, facilitate on-site copper busbar wiring and assembly, and reduce the workload of assembly personnel.

[0035] Additionally, the first direction is the installation direction of copper busbar 2 along channel 3, which is the installation direction of channel 3; the second direction is the opposite direction of the installation direction of copper busbar 2 along channel 3, which is the opposite direction of the installation direction of channel 3; for example, as Figure 3 As shown, the copper busbar 2 is installed downward through the channel 3 of the first protective component 11. The first direction is downward and the second direction is upward. That is, after the copper busbar 2 is installed through the channel, the first limiting structure is used to restrict the downward displacement of the copper busbar 2, thereby limiting the copper busbar 2 downward and also providing support. The second limiting structure is used to restrict the upward displacement of the copper busbar 2, thereby limiting the copper busbar 2 upward and preventing the copper busbar 2 from swaying upward.

[0036] In other words, in the through-wall terminal provided by this solution, after the copper busbar 2 is installed through the channel of the protective housing 1, the first limiting structure is used to restrict the displacement of the copper busbar 2 along the installation direction, which plays a supporting and limiting role. At the same time, the second limiting structure is used to restrict the displacement of the copper busbar 2 along the opposite installation direction, which plays a reverse limiting role. Thus, the copper busbar 2 can be supported and reverse limited. This not only avoids the copper busbar 2 from being strained by force, but also facilitates the on-site copper busbar wiring and assembly, reducing the workload of assembly personnel. Of course, this solution actually provides a copper busbar limiting method suitable for high-current through-wall terminals.

[0037] In this scheme, the first limiting structure is distributed between the two sides of the copper busbar 2 and the channel 3;

[0038] The second limiting structure is distributed on both sides of the copper busbar 2 and between the channel 3.

[0039] It should be noted that the first limiting structure can be distributed between the left and right sides of the copper busbar 2 and the channel 3. Specifically, the first limiting structure can be distributed between the left side wall of the copper busbar 2 and the left side wall of the channel 3, and between the right side wall of the copper busbar 2 and the right side wall of the channel 3. This not only facilitates the setting of the first limiting structure, but also avoids the first limiting structure occupying more space. Similarly, the second limiting structure can be distributed between the left and right sides of the copper busbar 2 and the channel 3. Specifically, the second limiting structure can be distributed between the left side wall of the copper busbar 2 and the left side wall of the channel 3, and between the right side wall of the copper busbar 2 and the right side wall of the channel 3. This not only facilitates the setting of the second limiting structure, but also avoids the second limiting structure occupying more space. In other words, the first and second limiting structures are distributed in this way, which has the characteristics of reasonable distribution and compact structure. Of course, the first limiting structure can also be distributed between the front and rear sides of the copper busbar 2 and the channel 3, and the second limiting structure is similar, which will not be elaborated here.

[0040] Specifically, both the first and second limiting structures are convex-groove limiting structures. That is to say, both the first and second limiting structures can be in the form of a limiting convex + limiting groove combination; of course, this limiting form has the characteristics of simple structure and convenient limiting.

[0041] Furthermore, such as Figure 3 and Figure 4 As shown, the second limiting structure includes:

[0042] Two limiting grooves 21 are respectively opened on the left and right walls of the copper busbar 2;

[0043] Two second limiting protrusions 31 are respectively set on the left and right walls of the channel 3, and are used to cooperate with the two limiting grooves 21 of the copper busbar 2.

[0044] It should be noted that both the left and right sides of the copper busbar 2 have limiting grooves 21, and both the left and right sides of the channel 3 have second limiting protrusions 31. The two second limiting protrusions 31 of the channel 3 cooperate one-to-one with the two limiting grooves 21 of the copper busbar 2. That is, the two second limiting protrusions 31 of the channel 3 can be inserted one-to-one into the two limiting grooves 21 of the copper busbar 2. Based on the limiting cooperation of the protrusions and grooves on the left and right sides of the copper busbar 2, the copper busbar 2 can be reverse-limited. In addition, the second limiting structure adopts this structural form, which has the characteristics of simple structure and easy design. Furthermore, the limiting... The distribution of grooves 21 on the corresponding sidewalls of the copper busbar 2 can extend to the front and rear surfaces of the copper busbar 2. That is, the limiting grooves 21 on the corresponding sidewalls of the copper busbar 2 can be distributed between the two surfaces of the copper busbar 2. Similarly, the distribution of second limiting protrusions 31 on the corresponding sidewalls of the channel 3 can extend to the front and rear sidewalls of the channel 3. That is, the second limiting protrusions 31 on the corresponding sidewalls of the channel 3 can be distributed between the front and rear sidewalls of the channel 3. Of course, during the process of installing the copper busbar 2 into the channel 3, it is ensured that the two second limiting protrusions 31 of the channel 3 can be installed into the two limiting grooves 21 of the copper busbar 2 one by one.

[0045] Furthermore, such as Figure 4 As shown, the limiting groove 21 is a trapezoidal limiting groove;

[0046] The second limiting protrusion 31 is a rectangular limiting protrusion and is used to cooperate with the trapezoidal limiting groove.

[0047] Among them, such as Figure 4 As shown, the longitudinal section shape of the limiting groove 21 can be trapezoidal, so the limiting groove 21 can be a trapezoidal limiting groove; the longitudinal section shape of the second limiting protrusion 31 can be rectangular, so the second limiting protrusion 31 can be a rectangular limiting protrusion, and can be inserted into or snapped into the trapezoidal limiting groove; of course, the limiting groove 21 and the second limiting protrusion 31 in this scheme are designed in this way to facilitate the second limiting protrusion 31 to be inserted into the limiting groove 21 to achieve reverse limiting.

[0048] In this design, the second limiting protrusion 31 and the limiting groove 21 are in an interference fit, which makes the reverse limiting of the copper busbar 2 more stable. Of course, since the second limiting protrusion 31 and the limiting groove 21 form an interference fit, the copper busbar 2 needs to be pressed in force during installation so that the second limiting protrusion 31 can be installed or locked into the limiting groove 21.

[0049] Specifically, such as Figure 3 and Figure 4 As shown, the left and right walls of the copper busbar 2 are respectively provided with guide slopes 22 that become narrower along the first direction;

[0050] The two guide slopes 22 of the copper busbar 2 are located on one side of the two limiting grooves 21 of the copper busbar 2 along the first direction.

[0051] It should be noted that, as Figure 3 and Figure 4 As shown, both the left and right sides of the copper busbar 2 are provided with guide slopes 22 that become narrower along a first direction (e.g., downwards). The guide slopes 22 on the side walls of the copper busbar 2 can be wider at the top and narrower at the bottom. In addition, the two guide slopes 22 of the copper busbar 2 can be distributed on the lower side of the two limiting grooves 21 of the copper busbar 2. In this way, when the copper busbar 2 is inserted downwards into the channel 3, the two guide slopes 22 of the copper busbar 2 can first contact the two second limiting protrusions 31 of the channel 3 one by one. As the copper busbar 2 is continuously inserted, the two guide slopes 22 of the copper busbar 2 can guide the two second limiting protrusions 31 of the channel 3 to be inserted into the two limiting grooves 21 of the copper busbar 2. Of course, during this process, force is required to insert the copper busbar 2 into the channel 3.

[0052] Furthermore, such as Figure 3 and Figure 4 As shown, the first limiting structure includes:

[0053] Two first limiting protrusions 23 are respectively disposed on the left and right side walls of the copper busbar 2, and are located on one side of the two limiting grooves 21 along the second direction and are adjacent to the two limiting grooves 21; wherein, the two first limiting protrusions 23 of the copper busbar 2 and the two second limiting protrusions 31 of the channel 3 are distributed at intervals.

[0054] It should be noted that, as Figure 3 and Figure 4 As shown, two first limiting protrusions 23 are respectively set on the left and right side walls of the copper busbar 2, and can be located on the upper side of the two limiting grooves 21 (in this case, the second direction is upward), and adjacent to the two limiting grooves 21. In this way, the copper busbar 2 can be supported and limited by the abutting cooperation between the two first limiting protrusions 23 of the copper busbar 2 and the two second limiting protrusions 31 of the channel 3. This can reduce the strain caused by the weight of the copper busbar 2 and the dimensional deviation caused by the strain, which is convenient for on-site construction. It also avoids accidental work injuries caused by the copper busbar 2 falling off due to its unstable position, and improves the reliability and safety of the through-wall terminal. The two first limiting protrusions 23 of the copper busbar 2 can also limit the downward displacement of the copper busbar 2, that is, limit the copper busbar 2 from being pressed down for installation. Of course, the first limiting structure adopts this structural form, which has the characteristics of simple structure and easy design; in addition, considering the wiring requirements, the position of copper busbar 2 needs to be adjusted within a small range. Copper busbar 2 cannot be completely fixed in channel 3, so a small range of movement is allowed in channel 3; accordingly, the two first limiting protrusions 23 of copper busbar 2 and the two second limiting protrusions 31 of channel 3 are distributed alternately, which allows copper busbar 2 to have a certain small range of adjustment space in channel 3, ensuring that copper busbar 2 can only move within this adjustment space; of course, the two trapezoidal limiting grooves of copper busbar 2 can be designed to be larger, so that the two adjacent first limiting protrusions 23 can be easily distributed alternately with the two second limiting protrusions 31 of channel 3.

[0055] Furthermore, such as Figure 4 As shown, the first limiting protrusion 23 is a trapezoidal limiting protrusion;

[0056] The second limiting protrusion 31 is a rectangular limiting protrusion, and is used for abutting and mating with the trapezoidal limiting protrusion.

[0057] It should be noted that, as Figure 4 As shown, the longitudinal section shape of the first limiting protrusion 23 can be trapezoidal, thus the first limiting protrusion 23 can be a trapezoidal limiting protrusion, and it is distributed adjacent to the corresponding trapezoidal limiting groove; as mentioned above, the longitudinal section shape of the second limiting protrusion 31 can be rectangular, thus the second limiting protrusion 31 can be a rectangular limiting protrusion, and it can abut against the trapezoidal limiting protrusion; of course, the first limiting protrusion 23 and the second limiting protrusion 31 are designed in this way to facilitate the abutment fit between the first limiting protrusion 23 and the second limiting protrusion 31, thereby facilitating better support and limiting of the copper busbar 2; in addition, as Figure 4 As shown, the first limiting protrusion 23 can be a large trapezoidal limiting protrusion, and the limiting groove 21 can be a small trapezoidal limiting groove, ensuring that the copper busbar 2 can only move within a certain small range of adjustment space; in addition, the distribution of the first limiting protrusion 23 on the corresponding side wall of the copper busbar 2 can extend to the front and rear plates of the copper busbar 2, that is, the first limiting protrusion 23 on the corresponding side wall of the copper busbar 2 can be distributed between the two plates of the copper busbar 2.

[0058] In this plan, such as Figure 4 As shown, the first limiting protrusion 23 on the right side wall of the copper busbar 2 is in contact with the right side wall of the channel 3;

[0059] The first limiting protrusion 23 on the left side wall of the copper busbar 2 contacts the left side wall of the channel 3.

[0060] Among them, such as Figure 4 As shown, the right end of the first limiting protrusion 23 on the right side wall of the copper busbar 2 contacts the right side wall of the channel 3, and the left end of the first limiting protrusion 23 on the left side wall of the copper busbar 2 contacts the left side wall of the channel 3. In this way, the copper busbar 2 can play a left and right limiting role in the channel 3, preventing the copper busbar 2 from swaying left and right in the channel 3, thereby ensuring that the copper busbar 2 is installed firmly in the channel 3.

[0061] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0062] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A through-wall terminal, characterized in that, include: The protective housing (1) and the copper busbar (2) are provided. The protective housing (1) has a channel (3) that passes through the protective housing (1). The copper busbar (2) is installed along a first direction and passes through the channel (3). The channel (3) and the copper busbar (2) are provided with a first limiting structure that cooperates with each other and is used to limit the displacement of the copper busbar (2) along the first direction. The channel (3) and the copper busbar (2) are also provided with a second limiting structure that cooperates with each other and is used to limit the displacement of the copper busbar (2) along the second direction. The first direction is opposite to the second direction.

2. The through-wall terminal according to claim 1, characterized in that, The first limiting structure is distributed between the two sides of the copper busbar (2) and the channel (3); The second limiting structure is distributed on both sides of the copper busbar (2) and between the channel (3).

3. The through-wall terminal according to claim 2, characterized in that, Both the first limiting structure and the second limiting structure are protrusion groove limiting structures.

4. The through-wall terminal according to claim 3, characterized in that, The second limiting structure includes: Two limiting grooves (21) are respectively opened on the left and right sides of the copper busbar (2); Two second limiting protrusions (31) are respectively set on the left and right side walls of the channel (3) and are used to cooperate with the two limiting grooves (21) of the copper busbar (2).

5. The through-wall terminal according to claim 4, characterized in that, The limiting groove (21) is a trapezoidal limiting groove; The second limiting protrusion (31) is a rectangular limiting protrusion and is used to cooperate with the trapezoidal limiting groove.

6. The through-wall terminal according to claim 5, characterized in that, The second limiting protrusion (31) and the limiting groove (21) are interference fit.

7. The through-wall terminal according to claim 6, characterized in that, The left and right walls of the copper busbar (2) are respectively provided with guide slopes (22) that become narrower along the first direction. The two guide slopes (22) of the copper busbar (2) are located on one side of the two limiting grooves (21) of the copper busbar (2) along the first direction.

8. The through-wall terminal according to claim 4, characterized in that, The first limiting structure includes: Two first limiting protrusions (23) are respectively disposed on the left and right side walls of the copper busbar (2), and are located on one side of the two limiting grooves (21) along the second direction and are adjacent to the two limiting grooves (21); wherein, the two first limiting protrusions (23) of the copper busbar (2) and the two second limiting protrusions (31) of the channel (3) are distributed at intervals.

9. The through-wall terminal according to claim 8, characterized in that, The first limiting protrusion (23) is a trapezoidal limiting protrusion; The second limiting protrusion (31) is a rectangular limiting protrusion and is used to abut against the trapezoidal limiting protrusion.

10. The through-wall terminal according to claim 8, characterized in that, The first limiting protrusion (23) on the right side wall of the copper busbar (2) contacts the right side wall of the channel (3); The first limiting protrusion (23) on the left side wall of the copper busbar (2) contacts the left side wall of the channel (3).

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