Wiring device

Abstract

The utility model relates to the field of low-voltage electric appliances, in particular to a wiring device, in which a matching structure shielding part shields a wiring screw, a matching structure insertion part is inserted into a third wiring hole in a sliding manner along a direction d3, and an external conductor is inserted into the third wiring hole in place. The abutting fit structure insertion part enables the indication fit structure to move from the first position to the second position, thereby enabling the fit structure insertion part to avoid the wiring screw. The wiring device ensures the wiring reliability of the external connection wiring terminal and the external connection conductor.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of low-voltage electrical apparatus, and particularly relates to a wiring device. BACKGROUND

[0002] When an external conductor is inserted into the wiring terminal for wiring, the depth of the external conductor inserted can only be judged by feeling or experience, which often leads to the situation that the wiring terminal and the external conductor are not connected reliably. SUMMARY

[0003] The utility model discloses a wiring device which can guarantee the wiring reliability of the external connecting terminal and the external conductor.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A wiring device includes an external connecting terminal, the external connecting terminal includes a wiring seat and a wiring screw, the wiring seat is provided with a third wiring hole extending along a direction d3, the wiring screw is threadedly connected with the wiring seat and one end of the wiring screw is inserted into the third wiring hole;

[0006] The wiring device further includes a wiring-in-place indicating mechanism, the wiring-in-place indicating mechanism includes an indicating cooperation structure for transmission cooperation with the external conductor and having a first position and a second position, and a second elastic reset member, the indicating cooperation structure includes a cooperation structure shielding part and a cooperation structure insertion part slidingly inserted into the third wiring hole along the direction d3, and the cooperation structure shielding part is linked with the cooperation structure insertion part; when the indicating cooperation structure is in the first position, the cooperation structure shielding part shields the wiring screw; the cooperation structure insertion part is used for being driven to slide by the external conductor inserted into the third wiring hole and inserted into place, and drives the indicating cooperation structure to move from the first position to the second position, and the cooperation structure shielding part avoids the wiring screw.

[0007] Further, the indicating cooperation structure is integrally arranged.

[0008] Further, the indicating cooperation structure is integrally arranged along the direction d3.

[0009] Further, the indicating cooperation structure further includes a driven part connected with the cooperation structure shielding part, the driven part includes the cooperation structure insertion part, and the driven part is cooperated with the second elastic reset member and used for transmission cooperation with the external conductor.

[0010] Further, the driven part comprises a matching part, which is connected with the matching structure shielding part and matched with the second elastic reset member; in the direction d3, one end of the third wiring hole is provided for inserting the external conductor, and the matching part is arranged on one side of the other end of the third wiring hole.

[0011] Further, the second elastic reset member is a compression spring, one end of which is matched with the matching part and the other end of which is fixedly arranged; in the direction d3, the second elastic reset member and the third wiring hole are respectively located on two sides of the matching part.

[0012] Further, one end of the matching structure insertion part is connected with the matching part and the other end is inserted into the third wiring hole, and the matching structure insertion part is arranged in opposite spacing with the matching structure shielding part and is located on the same side of the matching part in the direction d3.

[0013] Further, the wiring seat comprises a wiring seat body and a wiring seat wiring part, the middle part of the wiring seat body is provided with the third wiring hole, and the wiring seat wiring part is used for being electrically connected with the internal circuit of the electrical device to which the wiring device belongs; the matching part is provided with a matching hole through which the wiring seat wiring part passes.

[0014] Further, the external connection wiring terminal comprises two groups of wiring screws, which are arranged in parallel and spacing along the direction d3.

[0015] Further, the wiring seat is an aluminum alloy wiring seat.

[0016] The wiring device of the utility model, its wiring in place indication mechanism can accurately reflect whether the external conductor is inserted into the wiring hole in place, thereby avoiding the problem that the external connection wiring terminal and the external conductor are connected unreliable and / or poor conduction (virtual connection) caused by the external conductor not being inserted in place.

[0017] In addition, the wiring in place indication mechanism is simple in structure, adopts the matching structure shielding part to indicate whether the external conductor is installed in place, and the indication reliability is high. ACCURATELY REFLECTS WHETHER THE EXTERNAL CONDUCTOR IS INSERTED INTO THE WIRING HOLE IN PLACE

[0018] Figure 1 is the structure schematic view of the wiring device of the first embodiment of the utility model under the first visual angle;

[0019] Figure 2 is the structure schematic view of the wiring device of the first embodiment of the utility model under the second visual angle;

[0020] Figure 3 is the structure schematic view of the wiring device of the first embodiment of the utility model under the third visual angle, the wiring seat is in the first wiring position, the first baffle avoids the first opening and the second baffle shields the second opening;

[0021] Figure 4is another structure schematic view of the wiring device of the first embodiment of the utility model under the third visual angle, the wiring seat is in the first wiring position, the first baffle avoids the first opening and the second baffle covers the second opening;

[0022] Figure 5 is structure schematic view of the wiring device of the first embodiment of the utility model under the fourth visual angle, the wiring seat is in the second wiring position, the first baffle covers the first opening and the second baffle avoids the second opening;

[0023] Figure 6 is another structure schematic view of the wiring device of the first embodiment of the utility model under the fourth visual angle, the wiring seat is in the second wiring position, the first baffle covers the first opening and the second baffle avoids the second opening;

[0024] Figure 7 is structure schematic view of the wiring device of the second embodiment of the utility model, and the indication cooperation structure is in the first position;

[0025] Figure 8 is cross section schematic view of the wiring device of the second embodiment of the utility model, and the indication cooperation structure is in the first position;

[0026] Figure 9 is structure schematic view of the wiring device of the second embodiment of the utility model, and the indication cooperation structure is in the second position;

[0027] Figure 10 is cross section schematic view of the wiring device of the second embodiment of the utility model, and the indication cooperation structure is in the second position.

[0028] Explanation of reference signs

[0029] First wiring screw 71, second wiring screw 72, wiring seat 731, wiring plate 74, first wiring layer 741, second wiring layer 742, first baffle 751, second baffle 752, wire pressing plate 753, first elastic reset piece 761, second elastic reset piece 762, in-place monitoring element 771, cooperation structure driven plate 772, indication cooperation structure 773, cooperation structure cover part 774, cooperation part 775, cooperation hole 776, cooperation structure trigger part 777, driven part 778, cooperation structure insertion part 779, first wiring hole 791, second wiring hole 792, wiring seat main body 793, third wiring hole 794, wiring seat wiring part 795;Wiring device shell 81, first opening 821, second opening 822, first operation hole 831, second operation hole 832, terminal cavity 84, first indication part 851, second indication part 852, sampling circuit board 955. DETAILED DESCRIPTION

[0030] The specific embodiments of the wiring device of this utility model are further described below with reference to the accompanying drawings. The wiring device of this utility model is not limited to the descriptions in the following embodiments.

[0031] The wiring device of this invention can be applied to various electrical devices, meaning the wiring device is part of the electrical device. The electrical device can be a plug-in base, circuit breaker, contactor, disconnector, etc. The plug-in base is an electrical device that at least supports the energy meter and the outgoing switch, connecting them to their corresponding electrical circuits.

[0032] like Figures 1-10 The diagram shows a first embodiment of the wiring device.

[0033] The wiring device of the first embodiment includes an external connection terminal and a wiring position indication mechanism. The external connection terminal includes a terminal block 731, which has a wiring hole for an external conductor 86 (i.e., an incoming or outgoing external conductor) to be inserted along direction d3. The wiring position indication mechanism includes an indicating engagement structure 773 and a second elastic reset member 762 that are in drive with the external conductor 86. The indicating engagement structure 773 has a first position and a second position. When the external conductor 86 is inserted into the wiring hole and reaches a preset position (i.e., the length of the external conductor 86 inserted into the wiring hole reaches a preset length, or the depth of the external conductor 86 inserted into the wiring hole reaches a predetermined depth), the indicating engagement structure 773 is driven by the external conductor 86 to move from the first position to the second position. That is, when the external conductor 86 is inserted into the wiring hole and reaches the preset position, the external conductor 86 drives the indicating engagement structure 773 to move from the first position to the second position. When the indicating engagement structure 773 is in the second position, the wiring position indication mechanism gives a position indication signal. The second elastic reset member 762 acts on the indicating engagement structure 773, causing it to tend to move towards the first position; that is, when the external conductor 86 is removed, the second elastic reset member 762 acts on the indicating engagement structure 773, causing it to move from the second position to the first position. The external conductor 86 is preferably a rigid wire, such as a copper rigid wire, an aluminum rigid wire, or other alloy rigid wire.

[0034] The wiring device has an in-place indicator mechanism that can accurately reflect whether the external conductor 86 is properly inserted into the wiring hole, thereby avoiding the problem of unreliable connection and / or poor conductivity (e.g., loose connection) between the external wiring terminal and the external conductor 86 due to improper insertion of the external conductor 86.

[0035] The arrival indication signal includes a photoelectric signal; such as... Figures 1-2 As shown in Figures 4 and 6, the wiring position indication mechanism also includes a position monitoring element 771, which emits a position indication signal when triggered by the indication and mating structure 773 that moves to the second position.

[0036] Specifically, the position monitoring element 771 is a micro switch. Furthermore, the position monitoring element 771 is connected to the sampling circuit board 955 of the sampling device.

[0037] As another embodiment of the position monitoring element 771, the position monitoring element 771 is a position detector (e.g., a photoelectric position sensor). When the position detector detects that the indicating mating structure 773 has moved to the second position, it indicates that the external conductor 86 has been inserted into place.

[0038] The positioning indication signal includes a marker display status change signal that can be directly observed by the operator. For example, a portion of the indicating mating structure 773 can always be observed by the operator when the external conductor 86 is not inserted into the wiring hole or is not fully inserted. When the external conductor 86 is fully inserted, the indicating mating structure 773 moves to the second position, and that portion of the indicating mating structure 773 becomes completely invisible. Alternatively, the indicating mating structure 773 has two indicator marks, corresponding to the first and second positions of the indicating mating structure 773, respectively. When the indicating mating structure 773 is in the first position, the first mark can be fully observed by the operator and the second mark is completely invisible to the operator. When the indicating mating structure 773 is in the second position, the second mark can be fully observed by the operator and the first mark is completely invisible to the operator.

[0039] like Figures 1-2 As shown in 6-10, the indicator and mating structure 773 is moved as a whole and switches between a first position and a second position by moving as a whole.

[0040] Specifically, the indicating and mating structure 773 is moved as a whole along direction d3, that is, the indicating and mating structure 773 is moved as a whole in a straight line along direction d3.

[0041] As another embodiment of the movement mode of the indicated mating structure 773, the indicated mating structure 773 is moved as a whole along a curve (e.g., an arc) or rotated.

[0042] like Figures 1-2 As shown in 6-10, the second elastic reset member 762 is a compression spring, one end of which is fixedly installed (for example, this end is fitted with the housing of the electrical device to which the wiring device belongs for fixed installation) and the other end is fitted with the indicating engagement structure 773.

[0043] As another embodiment of the second elastic reset member 762, the second elastic reset member 762 is a tension spring, a spring sheet, or a torsion spring, or other elastic members that meet the functional requirements. Those skilled in the art can replace them according to actual needs, and they will not be listed one by one here.

[0044] likeFigures 1-6 As shown in FIG. 1, the wiring device is a second embodiment of the wiring device, which is different from the wiring device of the first embodiment in that:

[0045] As shown in FIG. 1, the wiring device is a second embodiment of the wiring device, which is different from the wiring device of the first embodiment in that: Figures 1-6 As shown in FIG. 1, the wiring device is a second embodiment of the wiring device, which is different from the wiring device of the first embodiment in that:

[0046] The structure design of the external connection terminal and the wiring board 74 makes the external connection terminal connect with the external conductor 86 of different materials, thereby widening the application scenarios of the wiring device, and improving the compatibility of the electrical device.

[0047] Specifically, the wiring seat 731 is a square box structure, which includes a wiring seat front wall and a wiring seat rear wall oppositely arranged along the direction d2, and two wiring seat side walls oppositely arranged along the direction d1. The wiring seat front wall is opposite to the first wiring layer 741, and the wiring seat bottom wall is opposite to the second wiring layer 742. The wiring seat front wall, the two wiring seat side walls, and the first wiring layer 741 cooperatively form the first wiring hole 791, and the wiring seat rear wall, the two wiring seat side walls, and the second wiring layer 742 cooperatively form the second wiring hole 792. Further, the wiring seat 731 is a copper wiring frame or an aluminum alloy material wiring frame or an aluminum wiring frame, etc.

[0048] Specifically, the first wiring layer 741 is a copper wiring layer, and the second wiring layer 742 is an aluminum wiring layer, that is, the external connection terminal can be used to connect with the external conductor 86 of copper or aluminum. Further, the first wiring layer 741 and the second wiring layer 742 are parallelly overlaid together.

[0049] As shown in FIG. 1, the wiring device is a second embodiment of the wiring device, which is different from the wiring device of the first embodiment in that: Figures 3-6As shown, the wiring device of the second embodiment further includes a first elastic reset member 761; the terminal block 731 has two wiring positions, namely a first wiring position and a second wiring position; the terminal block 731 switches between the two wiring positions by moving along direction d2; the first elastic reset member 761 acts on the terminal block 731 to keep it in the first wiring position. When the terminal block 731 is in the first wiring position, the diameter of the first wiring hole 791 is larger than the diameter of the second wiring hole 792, thereby allowing the external conductor 86 to be smoothly inserted into the first wiring hole 791. At this time, the first elastic reset member 761 is in a released state; in actual use, when the terminal block 731 is in the first wiring position, the diameter of the first wiring hole 791 is much larger than the diameter of the second wiring hole 792, and the diameter of the second wiring hole 792 becomes too small to be used for wiring. When the terminal block 731 is in the second wiring position, the diameter of the first wiring hole 791 is smaller than the diameter of the second wiring hole 792, thereby allowing the external wire 86 to be smoothly inserted into the second wiring hole 792. At this time, the first elastic reset member 761 is in an energy storage state. In actual use, when the terminal block 731 is in the second wiring position, the diameter of the second wiring hole 792 is much larger than the diameter of the first wiring hole 791, and the diameter of the first wiring hole 791 becomes too small to be used for wiring.

[0050] Specifically, the first elastic reset member 761 is a compression spring. When the terminal block 731 moves from the first wiring position to the second wiring position, it compresses the first elastic reset member 761 to store energy. Furthermore, one end of the first elastic reset member 761 cooperates with the terminal block 731, and the other end cooperates with the wiring device housing 81 of the wiring device.

[0051] As another embodiment of the first elastic reset member 761, the first elastic reset member 761 is a tension spring, a serpentine spring sheet, or a torsion spring, or other elastic components that meet the functional requirements. Those skilled in the art can replace them according to actual needs, and they will not be listed one by one here.

[0052] like Figures 1-2 As shown in Figures 4 and 6, the operating assembly further includes a wiring screw, which is threadedly connected to the terminal block 731. One end of the wiring screw is inserted into the first wiring hole 791 and is used to cooperate with the terminal block 731 and the terminal plate 74 to press the external conductor 86 inserted into the first wiring hole 791 or the external conductor inserted into the second wiring hole 792. Further, the external connection terminal also includes a pressure plate 753, which is inserted into the first wiring hole 791 and opposite to the terminal plate 74. The wiring screw is rotatably connected to the pressure plate 753, and when the wiring screw is tightened by external force, the wiring screw and the pressure plate 753 rotate relative to each other.

[0053] Specifically, the external connection terminal includes two terminal screws, namely a first terminal screw 71 and a second terminal screw 72, both of which are rotatably connected to the pressure plate 753. They are arranged side-by-side and spaced apart along direction d3 (i.e., the extension direction of the first terminal hole 791 and the second terminal hole 792). The first terminal screw 71 and the second terminal screw 72 work together to clamp the external conductor 86, further improving the reliability of the connection between the external conductor 86 and the external connection terminal. Furthermore, the wiring device housing 81 of the wiring device also has a first operating hole 831 and a second operating hole 832, with the operating ends of the first terminal screw 71 and the second terminal screw 72 slidably disposed within the first operating hole 831 and the second operating hole 832, respectively.

[0054] like Figures 1-4 As shown in Figure 6, the wiring device of the second embodiment further includes a wiring device housing 81 for accommodating external connection terminals. The wiring device housing 81 includes a first opening 821 that mates with the first wiring hole 791 and a second opening 822 that mates with the second wiring hole 792. The first opening 821 is used for the corresponding external conductor 86 to pass through and be inserted into the first wiring hole 791, and the second opening 822 is used for the corresponding external conductor 86 to pass through and be inserted into the second wiring hole 792.

[0055] Specifically, the wiring device housing 81 is served by the housing of the electrical device to which the wiring device belongs, or by a structure that is independent of the housing of the electrical device and fixedly fitted thereto. The wiring device housing 81 has a terminal cavity 84, and the external connection terminal is located within the terminal cavity 84. The first elastic reset member 761 acts on the terminal block 731, causing it to engage with the side wall of the terminal cavity 84 to hold the terminal block 731 in the first wiring position. At this time, the first elastic reset member 761 is in a released state. The operator uses a tool (e.g., a screwdriver) to press the wiring screw, driving the terminal block 731 to overcome the force of the first elastic reset member 761 and move it from the first wiring position to the second wiring position, thus switching the first elastic reset member 761 to an energy storage state. Figures 1-6As shown, the wiring device of the second embodiment further comprises a first baffle 751 and a second baffle 752; the first baffle 751 and the second baffle 752 move synchronously with the terminal block 731 when the terminal block 731 switches between the first wiring position and the second wiring position; when the terminal block 731 is in the first wiring position, the first baffle 751 avoids the first opening 821, allowing the external conductor 86 to pass through the first opening 821 and be inserted into the first terminal hole 791, and the second baffle 752 blocks the second opening 822, preventing the external conductor 86 from passing through the second opening 822 and being inserted into the second terminal hole 792, and avoiding the operator from accidentally touching the terminal block 731 through the second opening 822; when the terminal block 731 is in the second wiring position, the second baffle 752 avoids the second opening 822, allowing the external conductor 86 to pass through the second opening 822 and be inserted into the second terminal hole 792, and the first baffle 751 blocks the first opening 821, preventing the external conductor 86 from passing through the first opening 821 and being inserted into the first terminal hole 791, and avoiding the operator from accidentally touching the terminal block 731 through the first opening 821. When the terminal block 731 is in a wiring position, only the corresponding terminal hole is open to allow the external conductor 86 to be inserted therein, thereby avoiding the operator from making a mistake in wiring. Further, the wiring device of the second embodiment further comprises a first indication structure, which comprises two sets of indication marks respectively arranged on the first baffle 751 and the second baffle 752, and the two sets of indication marks are used to indicate the material of the wiring layer corresponding to the terminal hole into which the external conductor 86 can be inserted (i.e. the terminal hole corresponding to the opening of the wiring device shell 81 which is not blocked), further prompting the operator to avoid the situation that the external conductor 86 made of copper is inserted into the second terminal hole 791 and the external conductor 86 made of aluminum is inserted into the first terminal hole 791.

[0056] Specifically, the first baffle 751 is fixedly connected with the crimping plate 753; the second baffle 752 is fixedly connected with the terminal block 731. Of course, the first baffle 751 can also be arranged to be fixedly connected with the terminal block 731, which can be easily achieved by those skilled in the art using conventional technical means; alternatively, the second baffle 752 comprises a second baffle cooperating portion which abuts against the terminal block 731 under the action of the first elastic reset member 761, so that the second baffle 752 moves synchronously with the terminal block 731. Further, the first baffle 751 and the second baffle 752 are both insulating baffles.

[0057] As shown in FIG. 6, the first baffle 751 and the second baffle 752 are both insulating baffles, and the first baffle 751 and the second baffle 752 are arranged to be fixedly connected with the terminal block 731. Figure 3 、 5As shown, the wiring device of the second embodiment further includes a second indicator structure. The second indicator structure includes a first indicator part 851 and a second indicator part 852 disposed on the wiring device housing 81. The first indicator part 851 and the second indicator part 852 are respectively disposed corresponding to the first opening 821 and the second opening 822, and are used to indicate the material of the wiring layer (that is, the wiring layer corresponding to the first wiring hole 791 and the second wiring hole 792) corresponding to the first opening 821 and the second opening 822.

[0058] Specifically, the first indicator 851 and the second indicator 852 are both protruding along direction d3 (i.e., the direction in which the external conductor 86 is inserted into the first wiring hole 791 and the second wiring hole 792). The first indicator 851 is closer to the side of the wiring device facing the operator than the second indicator 852. The length of the protrusion of the first indicator hole 851 is less than the length of the protrusion of the second indicator hole 852. The first opening 821, the first indicator 851, the second opening 822, and the second indicator 852 are arranged sequentially along direction d2 (i.e., the sliding direction of the terminal block 731). The first indicator 851 is located between the first opening 821 and the second opening 822. The first indicator 851 and the second indicator 852 are located on both sides of the second opening 822. The side of the first indicator 851 and the second indicator 852 facing the operator is provided with indicator marks. The two sets of indicator marks are used to indicate the material of the wiring layer corresponding to the first opening 821 and the second opening 822, respectively.

[0059] In another embodiment of the arrangement of the first indicator 851 and the second indicator 852, in the direction d1, the first indicator 851 is disposed on one side of the first opening 821, and the second indicator 852 is disposed on one side of the second opening 822. The first indicator 851 and the second indicator 852 are preferably located on the same side of the first opening 821 and the second opening 822.

[0060] It should be noted that in the wiring device of the first embodiment, the first indicator structure and the second indicator structure can be provided simultaneously, or one of them can be provided—that is, only the first indicator structure is provided without the second indicator structure, or only the second indicator structure is provided without the first indicator structure.

[0061] like Figures 1-2, 4, 6, the indicating cooperating structure 773 of the wiring device of the second embodiment includes a cooperating structure driven plate 772 for cooperating with the external conductor 86, the cooperating structure driven plate 772 is used for being pressed by the external conductor 86 to drive the indicating cooperating structure 773 to move from the first position to the second position; in the direction d3, the wiring hole is provided for the external conductor 86 to insert, and the cooperating structure driven plate 772 is arranged on one side of the other end of the wiring hole. Further, the cooperating structure driven plate 772 includes a driven plate avoiding hole 780 for the wiring plate 74 to pass through, and one end of the wiring plate 74 passes through the driven plate avoiding hole 780 and is electrically connected with the internal circuit of the electrical device to which the wiring device belongs. Further, the second elastic reset member 762 acts on the cooperating structure driven plate 772, so that the indicating cooperating structure 773 has a tendency to move to the first position; that is, when the external conductor 86 is not inserted into the wiring hole of the external connecting terminal and the external conductor 86 is inserted into the wiring hole of the external connecting terminal without contacting the cooperating structure driven plate 772, the second elastic reset member 762 acts on the cooperating structure driven plate 772 to keep the indicating cooperating structure 773 in the first position; when the external conductor 86 is inserted into the wiring hole of the external connecting terminal and is in place, the external conductor 86 presses the cooperating structure driven plate 772 to make the indicating cooperating structure 773 move to the second position, and after the external conductor 86 is removed, the force exerted by the second elastic reset member 762 on the cooperating structure driven plate 772 makes the indicating cooperating structure 773 move to the first position.

[0062] Specifically, when the indicating cooperating structure 773 is in the first position, the second elastic reset member 762 makes the cooperating structure driven plate 772 abut against the wiring seat 731, so as to keep the indicating cooperating structure 773 in the first position.

[0063] Specifically, the second elastic reset member 762 is a compression spring, one end of which cooperates with the cooperating structure driven plate 772 and the other end of which cooperates with the wiring device shell 81. Further, one end of the cooperating structure driven plate 772 cooperates with the second elastic reset member 762 and the other end cooperates with the in-place monitoring element 771. Further, the second elastic reset member 762 and the in-place monitoring element 771 are located on both sides of the wiring plate 74 in the direction d2 and on the same side of the cooperating structure driven plate 772 in the direction d3. Further, the wiring device further includes a guide structure for defining the movement track of the cooperating structure driven plate 772, which can be realized by the prior art and will not be described here.

[0064] It should be pointed out that the wiring device of the second embodiment can be used without setting the wiring in-place indicating mechanism.

[0065] As Figures 7-10The diagram shows a third embodiment of the wiring device, which differs from the wiring device of the first embodiment in that:

[0066] like Figures 7-10 As shown, the wiring device of the third embodiment also includes an external connection terminal, which includes a terminal block 731 and a connection screw. The terminal block 731 is provided with a third connection hole 794 extending in the direction d3. There is one third connection hole 794, that is, the external conductor 86 is inserted into the terminal block 731 in the direction d3. The connection screw is threaded to the terminal block 731 and one end is inserted into the third connection hole 794.

[0067] Specifically, the terminal block 731 is made of aluminum alloy.

[0068] Specifically, the wiring device of the third embodiment includes two wiring screws in its external connection terminal, namely a first wiring screw 71 and a second wiring screw 72, which are arranged side by side and spaced apart along direction d3. Both the first wiring screw 71 and the second wiring screw 72 are used to press the external conductor 86 tightly, further improving the reliability of the connection between the external conductor 86 and the terminal block 731.

[0069] like Figures 7-10 As shown, in the wiring device of the third embodiment, the indicating engagement structure 773 of the wiring position indicating mechanism includes an engagement structure blocking part 774. When the indicating engagement structure 773 is in the first position, the engagement structure blocking part 774 blocks the wiring screw (partially or completely blocking it), preventing the operator from operating the wiring screw. When the indicating engagement structure 773 is driven from the first position to the second position by the external conductor 86 inserted into the third wiring hole 794 and in position, the engagement structure blocking part 774 avoids the wiring screw, allowing the operator to operate the wiring screw to engage with the wiring socket 731 to press the external conductor 86 tightly. The engagement structure blocking part 774 can prevent the operator from operating the wiring screw when the external conductor 86 is not yet inserted, and can also visually indicate whether the external conductor 86 is inserted. Further, the indicating engagement structure 773 includes a driven part 778 connected to the engagement structure blocking part 774. The driven part 778 engages with the second elastic reset member 762 and is used for transmission engagement with the external conductor 86. Furthermore, the driven part 778 includes a mating structure insertion part 779, one end of which is inserted into the third wiring hole 794, and is used to drive the indicating mating mechanism 773 to move from the first position to the second position by being pressed by the external conductor 86.

[0070] Specifically, the indicating fitting structure 773 is completely shielded by the fitting structure shielding part 774 when in the first position; the indicating fitting structure 773 is located in the second position, and both of the terminal screws are avoided by the fitting structure shielding part 774 and can be operated by the operator.

[0071] Specifically, the driven part 778 further comprises a fitting part 775, which is connected to the fitting structure shielding part 774 by bending and cooperates with the second elastic reset member 762; in the direction d3, one end of the third terminal hole 794 is provided for inserting the external conductor 86, and the fitting part 775 is arranged on the other side of the third terminal hole 794. One end of the fitting structure insertion part 779 is connected to the fitting part 775 and the other end is inserted into the third terminal hole 794, the fitting structure insertion part 779 is arranged opposite to the fitting structure shielding part 774 and is located on one side of the fitting part 775 in the direction d3, and the second elastic reset member 762 is located on the other side of the fitting part 775 in the direction d3. The fitting part 775 is provided with a fitting hole 776 for the terminal seat terminal part 795 to pass through. The fitting structure shielding part 774, the fitting part 775 and the fitting structure insertion part 779 are preferably an integral structure, and the whole is in a U-shaped structure. One end of the fitting part 775 is connected to the fitting structure shielding part 774 by bending and cooperates with the second elastic reset member 762, and the other end is connected to the fitting structure insertion part 779 by bending.

[0072] Specifically, the terminal seat 731 comprises a terminal seat body 793 and a terminal seat terminal part 795, and the terminal seat body 793 and the terminal seat terminal part 795 are preferably an integral structure. The terminal seat body 793 is provided with a third terminal hole 794 in the middle, and the terminal seat terminal part 795 is used for electrical connection with the internal circuit of the electrical device to which the terminal device belongs (when the external connection terminal of the terminal device of the second embodiment is used as the external connection line terminal 70, the terminal seat terminal part 795 is electrically connected with the first copper bar 110; when it is used as the external connection line terminal 80, the terminal seat terminal part 795 is electrically connected with the fourth copper bar 140).

[0073] Specifically, the third terminal hole 794 is a circular hole, and the fitting structure insertion part 779 is a cylindrical body.

[0074] As Figures 7-10As shown, the indicating fitting structure 773 further comprises a fitting structure trigger part 777 connected with the fitting part 775, and the fitting structure trigger part 777 is used to trigger the in-place monitoring element 771 when the indicating fitting structure 773 is in the second position. Further, the fitting structure trigger part 777 and the fitting structure insertion part 779 are both connected with one end of the fitting part 775 in the direction d3, and the fitting structure trigger part 777 and the fitting structure insertion part 779 are located on both sides of the fitting part 775 in the direction d3. Further, the fitting structure trigger part 777 is an integral structure with the fitting part 775.

[0075] It is to be noted that in the wiring device of the third embodiment, the fitting structure shielding part 774, the fitting structure trigger part 777 and the in-place monitoring element 771 can be simultaneously provided; or only the fitting structure shielding part 774 is provided, and the fitting structure trigger part 777 and the in-place monitoring element 771 are not provided; or only the fitting structure trigger part 777 and the in-place monitoring element 771 are provided, and the fitting structure shielding part 774 is not provided, and the fitting structure insertion part 779 can also be omitted. The wiring device of the third embodiment preferably only provides the fitting structure shielding part 774, and does not provide the fitting structure trigger part 777 and the in-place monitoring element 771.

[0076] As other embodiments, in the wiring device of the third embodiment, the indicating fitting structure 773 can be rotationally provided, and in the process of inserting the external conductor 86 into the third wiring hole 794 to the insertion in place, the external conductor 86 presses the driven part 778 to make the indicating fitting structure 773 rotate, so as to drive the fitting structure shielding part 774 to rotate and avoid the wiring screw. Further, the driven part 778 is rotationally provided at one end and oppositely provided with the third wiring hole 794, and the external conductor 86 presses the end of the driven part 778 opposite to the third wiring hole 794 to drive the indicating fitting structure 773 to rotate.

[0077] The following is a fourth embodiment of the wiring device, and the wiring device of the fourth embodiment adopts the wiring in-place indicating mechanism of the wiring device of the second embodiment and the external connection wiring terminal of the wiring device of the third embodiment, that is, the in-place monitoring element 771, the fitting structure driven plate 772 and the wiring seat main body 793 are sequentially arranged in the direction d3, one end of the third wiring hole 794 is provided for inserting the external conductor 86, the fitting structure driven plate 772 is arranged on one side of the third wiring hole 794 and is limited and fitted with the wiring seat main body 793, and the wiring seat wiring part 795 passes through the driven plate avoiding hole 780 of the fitting structure driven plate 772 and is electrically connected with the internal circuit of the electrical device.

[0078] The following is a fifth embodiment of the wiring device, and the difference between the wiring device of the fifth embodiment and the wiring device of the third embodiment is that the indicating fitting structure 773 does not provide the fitting structure shielding part 774.

[0079] It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings or the orientation or positional relationship commonly used in use, and are only for the convenience of description, and do not indicate that the device or element referred to must have a particular orientation, so it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating relative importance.

[0080] The above is a further detailed description of the present application in combination with specific preferred embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, which should be considered as falling within the scope of protection of the present application.

Claims

1. A wiring device, characterized by: The outer connecting terminal comprises a terminal seat (731) and a terminal screw, the terminal seat (731) is provided with a third terminal hole (794) extending along a direction d3, and the terminal screw is threadedly connected with the terminal seat (731) and has one end inserted into the third terminal hole (794); The wiring device further comprises a wiring-in-place indicating mechanism, the wiring-in-place indicating mechanism comprises an indicating matching structure (773) for drivingly matching with the external conductor (86) and having a first position and a second position, and a second elastic reset member (762), the indicating matching structure (773) comprises a matching structure blocking portion (774) and a matching structure insertion portion (779) slidingly inserted into the third terminal hole (794) along the direction d3, and the matching structure blocking portion (774) is linked with the matching structure insertion portion (779); when the indicating matching structure (773) is in the first position, the matching structure blocking portion (774) blocks the terminal screw; the matching structure insertion portion (779) is used for being driven to slide by the external conductor (86) inserted into the third terminal hole (794) and inserted into place, and drives the indicating matching structure (773) to move from the first position to the second position, and the matching structure blocking portion (774) avoids the terminal screw.

2. The wiring device of claim 1, wherein: The indicating matching structure (773) is integrally arranged.

3. The wiring device of claim 2, wherein: The indicating matching structure (773) is integrally arranged along the direction d3.

4. The wiring device of claim 3, wherein: The indicating matching structure (773) further comprises a driven portion (778) connected with the matching structure blocking portion (774), the driven portion (778) comprises the matching structure insertion portion (779), and the driven portion (778) is matched with the second elastic reset member (762) and is used for drivingly matching with the external conductor (86).

5. The wiring device of claim 4, wherein: The driven portion (778) comprises a matching portion (775), the matching portion (775) is connected with the matching structure blocking portion (774) by bending and is matched with the second elastic reset member (762); in the direction d3, one end of the third terminal hole (794) is used for inserting the external conductor (86), and the matching portion (775) is arranged on one side of the other end of the third terminal hole (794).

6. The wiring device of claim 5, wherein: The second elastic reset member (762) is a compression spring, one end of the second elastic reset member (762) is matched with the matching portion (775), and the other end of the second elastic reset member (762) is fixedly arranged; in the direction d3, the second elastic reset member (762) and the third terminal hole (794) are respectively located on two sides of the matching portion (775).

7. The wiring device of claim 5, wherein: One end of the matching structure insertion portion (779) is connected with the matching portion (775), and the other end of the matching structure insertion portion (779) is inserted into the third terminal hole (794), the matching structure insertion portion (779) is arranged in opposite spacing with the matching structure blocking portion (774) and is located on the same side of the matching portion (775) in the direction d3.

8. The wiring device of claim 5, wherein: The terminal block (731) comprises a terminal block body (793) and a terminal block connecting part (795), the third connecting hole (794) is arranged in the middle of the terminal block body (793), and the terminal block connecting part (795) is used for electrically connecting with the internal circuit of the electrical device to which the terminal block belongs; and the matching part (775) is provided with the matching hole (776) through which the terminal block connecting part (795) passes.

9. The wiring device of claim 1, wherein: The outer connecting terminal comprises two groups of connecting screws, and the two groups of connecting screws are arranged side by side and spaced apart along the direction d3.

10. The wiring device of claim 1, wherein: The terminal block (731) is an aluminum alloy terminal block.

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