Terminal cover

Abstract

Provided is a terminal cover capable of blocking a gap around an electric wire that is connected to a terminal part of a power device and passes through a wire outlet. A terminal cover (2) covers a terminal part of a power device (1) to which a terminal of an electric wire (5) is connected. The terminal cover (2) is provided with: a cover main body part (3) which covers the terminal part and in which a wire outlet (34) through which the electric wire (5) passes is formed; and a pair of baffle parts (4) which are arranged at the wire outlet (34) and block a gap around the electric wire (5). The baffle part (4) is formed with an insertion and penetration part through which the electric wire (5) passes, is held by the cover main body part (3) and rotates in a left-right split manner, so that the gap around the electric wire (5) can be blocked.

Description

Technical Field

[0001] The present invention relates to a terminal cover for covering a terminal portion of an electric power device to which a terminal of an electric wire is connected. Background Art

[0002] In the past, a terminal cover for covering a terminal portion of an electric device to which a terminal of an electric wire is connected is known. The terminal cover covers the terminal portion when the terminal of the electric wire is connected to the terminal portion. For example, the terminal cover disclosed in Patent Document 1 has a terminal cover body molded from a hard resin and a protective cover component molded from a flexible resin. The terminal cover body is a structure in which an upper surface, a pair of side walls extending in a vertical direction from both side ends of the upper surface, and two different-pole partition walls extending in a vertical direction from the upper surface in a manner of separating the pair of side walls are integrally molded. The terminal cover body sets the space surrounded by the upper surface, one side wall and one different-pole partition wall and the space surrounded by the upper surface and two different-pole partition walls as outlets for the electric wires. The protective cover component has: a connection portion, which is mounted on the terminal cover body; and a plate-shaped protective cover piece, which is integrally molded with the connection portion and blocks the outlet. The protective cover component makes the protective cover piece droop on the upper surface of the electric wire connected to the terminal portion of the electric device and discharged from the outlet to block the outlet.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2012-79586

[0004] However, the terminal cover disclosed in Patent Document 1 is a structure in which only the gap above the wire is blocked by the protective cover sheet, and the gap below the wire remains open, so the gap around the wire is not blocked. Therefore, it is possible that the operator's fingers or working tools etc. enter through the gap of the outlet and accidentally contact the terminal part of the power device. Summary of the invention

[0005] The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to obtain a terminal cover capable of closing gaps around electric wires connected to terminal portions of electric equipment and passing through a wire outlet.

[0006] In order to solve the above problems and achieve the purpose, the terminal cover involved in the present invention covers the terminal part of the electric device to which the terminal of the electric wire is connected, and the terminal cover is characterized in that it has: a cover body part, which covers the terminal part and forms an outlet for the electric wire to pass through; and

[0007] A pair of baffles are provided at the wire outlet to block the gap around the wires. The baffles are formed with insertion through portions for the wires to pass through, and are held by the cover body and rotated in a left-right split state, thereby blocking the gap around the wires.

[0008] Effects of the Invention

[0009] According to the terminal cover according to the present invention, there is an effect of being able to close the gap around the electric wire connected to the terminal portion of the electric equipment and passing through the outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a perspective view showing a state where the terminal cover according to the embodiment is mounted on electric power equipment.

[0011] Figure 2 It is a perspective view showing a state where the terminal cover according to the embodiment is lifted up from the electric power equipment.

[0012] Figure 3 It is a perspective view showing an electric power device on which the terminal cover according to the embodiment is mounted.

[0013] Figure 4 It is a perspective view showing a terminal cover according to the embodiment.

[0014] Figure 5 It is a perspective view showing a cover body portion of the terminal cover according to the embodiment.

[0015] Figure 6 It is a plan view showing a cover body portion of the terminal cover according to the embodiment.

[0016] Figure 7 It is a bottom view showing the cover body portion of the terminal cover according to the embodiment.

[0017] Figure 8 It is a perspective view showing a baffle portion of a terminal cover according to the embodiment.

[0018] Fig. 9 It is a front view showing the baffle portion of the terminal cover according to the embodiment.

[0019] Fig.10 It is an explanatory diagram showing the orientation in which the electric power equipment on which the terminal cover according to the embodiment is mounted is installed on a panel.

[0020] Fig.11 It is a perspective view showing the assembly procedure of the terminal cover mounted on the terminal portion on the power supply side.

[0021] Fig.12 It is a perspective view showing the assembly procedure of the terminal cover mounted on the terminal portion on the power supply side.

[0022] Fig.13 This is a bottom view showing the assembly procedure of the terminal cover mounted on the terminal portion on the power supply side.

[0023] Fig.14 This is a bottom view showing the assembly procedure of the terminal cover mounted on the terminal portion on the load side. DETAILED DESCRIPTION

[0024] Hereinafter, a terminal cover according to an embodiment of the present invention will be described in detail with reference to the drawings.

[0025] Implementation method.

[0026] Figure 1 It is a perspective view showing a state where the terminal cover according to the embodiment is mounted on electric power equipment. Figure 2 It is a perspective view showing a state where the terminal cover according to the embodiment is lifted up from the electric power equipment. Figure 3 1 is a perspective view showing an electric device on which the terminal cover according to the embodiment is mounted. In addition, in the present embodiment, for the sake of convenience of explanation, the surface of the electric device 1 on which the switch operation unit 14 is provided is set as the upper surface 15, and the two end surfaces in the width direction of the electric device 1 are set as the side surfaces 16. However, these directions do not specify the directions in which the electric device 1 is provided.

[0027] like Figure 1 to Figure 3 As shown, the terminal cover 2 of the present embodiment covers and protects the terminal parts 10 and 11 of the power device 1 to which the terminals (not shown) of the electric wires 5 are connected. As an example, the power device 1 is a switching device called a circuit breaker or a leakage circuit breaker that detects overcurrent or leakage and disconnects the circuit, but is not limited to a switching device, and may be a device having the terminal parts 10 and 11, such as a measuring device of an electric power meter. Figure 3 As shown, the outer shape of the electric power device 1 is a roughly rectangular parallelepiped. The electric power device 1 is provided with a terminal portion 10 on the power supply side at one end in the length direction, and a terminal portion 11 on the load side at the other end in the length direction. Three recesses are formed in the terminal portions 10 and 11, which are open on the upper surface 15 side of the electric power device 1 and the outlet side of the electric wire 5 and separated by the pole partition wall 12, and a terminal mounting portion 13 is provided in each recess. The terminal of the electric wire 5 is mounted on the terminal mounting portion 13 using a screw (not shown), thereby connecting to the terminal portions 10 and 11. In addition, the terminal portions 10 and 11 are not limited to a three-pole structure for connecting the three electric wires 5, as long as they are greater than or equal to one pole.

[0028] In addition, a switch operating unit 14 is provided on the upper surface 15 of the electric device 1. By operating the switch operating unit 14, the electric wire 5 connected to the terminal unit 10 on the power supply side and the electric wire (not shown) connected to the terminal unit 11 on the load side can be electrically connected or disconnected.

[0029] Next, refer to Figure 1 to Figure 3 And refer to Figures 4 to 9 Next, the structure of the terminal cover 2 will be described. Figure 4It is a perspective view showing a terminal cover according to the embodiment. Figure 5 It is a perspective view showing a cover body portion of the terminal cover according to the embodiment. Figure 6 It is a plan view showing a cover body portion of the terminal cover according to the embodiment. Figure 7 It is a bottom view showing the cover body portion of the terminal cover according to the embodiment.

[0030] like Figure 1 As shown, two terminal covers 2 are respectively mounted on the terminal portion 10 on the power supply side and the terminal portion 11 on the load side. The terminal cover 2 mounted on the terminal portion 10 on the power supply side and the terminal cover 2 mounted on the terminal portion 11 on the load side have the same structure. Therefore, in the following description, the terminal cover 2 mounted on the terminal portion 10 on the power supply side will be described, and the description of the terminal cover 2 mounted on the terminal portion 11 on the load side will be appropriately omitted.

[0031] like Figure 1 As shown, the terminal cover 2 covers and protects the terminal portion 10 in a state where the terminal of the electric wire 5 is connected to the terminal portion 10 so that the terminal portion 10 is not exposed to the outside. Figure 1 and Figure 4 As shown, the terminal cover 2 includes: a cover body 3, which covers the terminal part 10 and forms an outlet 34 for the wire 5 to pass through; and a pair of baffles 4, which are arranged at the outlet 34 to block the gap around the wire 5. The cover body 3 and the baffle 4 are formed of a hard resin such as ABS resin (acrylonitrile butadiene styrene resin) as an example. For example, if the baffle 4 is formed of a soft resin with flexibility, it will harden due to long-term use, and there is a possibility that the baffle 4 will be damaged by the gas generated when the circuit is disconnected. On the other hand, the baffle 4 is formed of a hard resin, so it will not be damaged by the gas generated when the circuit is disconnected, and it can be used safely and without worry.

[0032] like Figure 4 to Figure 7 As shown, the cover body 3 has: a plane portion 30, which covers the opening on the upper surface 15 side of the terminal portion 10; a pair of side wall portions 31, which are opposite to the side 16 of the electric device 1 in the portion where the terminal portion 10 is provided; and an end wall portion 32, which is opposite to the outlet side of the terminal portion 10. In the end wall portion 32, three opening portions 32a for passing the electric wire 5, which are mounted on the terminal mounting portion 13, are arranged opposite to each recess of the terminal portion 10. The opening portion 32a is a cutout hole formed by cutting off one side of the end wall portion 32, but is not limited to a cutout hole, and can be, for example, a hole surrounded by the periphery.

[0033] In addition, the cover body 3 has two partition walls 33, which are arranged in parallel with the side wall 31 to divide the space between the pair of side wall 31 into three spaces. The two spaces surrounded by the plane part 30, the side wall 31 and the partition walls 33 and the one space surrounded by the plane part 30 and the two partition walls 33 of the cover body 3 each serve as an outlet 34 for the electric wire 5. Two baffle parts 4 are respectively arranged at each outlet 34. In addition, the plane part 30, the side wall 31, the end wall 32 and the partition walls 33 are formed integrally.

[0034] like Figure 6 and Figure 7 As shown, an insertion hole 35 into which the baffle 4 is inserted is formed on the flat surface 30 of the cover body 3. The insertion hole 35 is a through hole connected to the outlet 34, and two insertion holes 35 are formed at intervals with respect to each outlet 34. The insertion hole 35 is set to be a rectangular shape extending long in the direction in which the wire 5 extends, and a circular holding hole 36 that can rotatably hold the baffle 4 is formed in the middle. Figure 6 and Figure 7 As shown, the insertion hole 35 has one side as a first insertion portion 35 a and the other side as a second insertion portion 35 b with the holding hole 36 as a boundary.

[0035] In addition, if Figure 7 As shown, a restriction portion 37 for stopping the rotation of the baffle portion 4 is provided on the inner side of the cover body portion 3 at a position where the gap around the electric wire 5 is blocked. As an example, the restriction portion 37 is a plate-shaped protrusion provided adjacent to the holding hole 36 and protruding from the plane portion 30 toward the outlet 34. In addition, the restriction portion 37 is not limited to the structure formed in the shape and position shown in the figure, and can be formed in other shapes and positions as long as the rotation of the baffle portion 4 can be stopped at a position where the gap around the electric wire 5 is blocked.

[0036] In addition, if Figure 7 As shown, a rotation preventing component 38 is provided on the inner side of the cover body 3, and the rotation preventing component 38 prevents the baffle portion 4 inserted into the insertion hole 35 from rotating in the direction opposite to the direction of blocking the gap around the wire 5. As an example, the rotation preventing component 38 is a plate-shaped protrusion that is provided adjacent to the first insertion portion 35a and protrudes from the plane portion 30 toward the outlet 34. In addition, the rotation preventing component 38 can also be provided adjacent to the second insertion portion 35b. In addition, the rotation preventing component 38 does not necessarily need to be provided and can be omitted. In addition, the rotation preventing component 38 is not limited to a structure formed in the shape and position shown in the figure, and can also be formed in other shapes and positions if it can prevent the baffle portion 4 inserted into the insertion hole 35 from rotating in the direction opposite to the direction of blocking the gap around the wire 5.

[0037] like Figure 1 , Figure 2 and Figure 4 As shown, the baffle 4 is formed with an insertion portion 40 a through which the electric wire 5 passes, and is held by the cover body 3 and rotated in a left-right split state, thereby being able to close the gap around the electric wire 5 . Figure 8 It is a perspective view showing a baffle portion of a terminal cover according to the embodiment. Fig. 9 2 is a front view showing a baffle portion of a terminal cover according to an embodiment. Figure 8 and Fig. 9 As shown, the baffle portion 4 includes a baffle body 40 , a shaft portion 41 , a retaining portion 42 , and a protruding portion 43 .

[0038] The baffle body 40 is a rectangular flat plate. The baffle body 40 is inserted from the first insertion portion 35a or the second insertion portion 35b in the insertion hole 35 formed in the flat portion 30 of the cover body 3 and is arranged at the outlet 34. The baffle body 40 has an insertion through portion 40a through which the wire 5 passes formed in the middle of the long side opposite to the other baffle body 40 arranged at the outlet 34. The insertion through portion 40a is formed by cutting off a part of the long side of the baffle body 40 into a semicircular shape. Figure 4 As shown, the baffle portion 4 is configured to form a circular hole for passing the wire 5 by combining the insertion through portions 40a of the adjacent baffle bodies 40 disposed at the wire outlet 34. In addition, the insertion through portion 40a is not limited to the structure shown in the figure, and is formed to match the position, shape and size of the wire 5. In addition, the baffle body 40 is not limited to a rectangular flat plate shape, and can be other shapes as long as it is a shape that can block the gap around the wire 5.

[0039] The shaft portion 41 rotatably supports the baffle body 40. The shaft portion 41 is formed integrally with the baffle body 40. The shaft portion 41 is disposed along the long side opposite to the long side formed with the insertion through portion 40a, among the left and right long sides of the baffle body 40, and the front end portion protrudes from the baffle body 40. The holding portion 42 is formed in a cylindrical shape and is provided at the front end portion of the shaft portion 41 protruding from the baffle body 40. Figure 4 As shown in FIG. 1 , the retaining portion 42 is embedded in the retaining hole 36 formed in the plane portion 30 when the baffle body 40 is arranged at the outlet 34, and is retained on the plane portion 30. The protrusion 43 abuts against the limiting portion 37 of the cover body 3. The protrusion 43 is provided along the short side of the baffle body 40 on the side where the shaft portion 41 is provided. In addition, the protrusion 43 is not limited to the short side of the baffle body 40 on the side where the shaft portion 41 is provided. Figure 8 and Fig. 9 The position shown may be set at another position as long as it can abut against the restriction portion 37 of the cover body 3.

[0040] Next, refer to Figure 10 to Figure 14 , the procedure for assembling the terminal cover 2 is described. Fig.10 1 is an explanatory diagram showing the orientation in which the electric power equipment equipped with the terminal cover according to the embodiment is installed on the panel. Fig.10 The direction from the upper side of the paper to the lower side of the paper is the direction of gravity. Fig.10 As shown, the electric power equipment 1 is arranged on a panel in a manner such that the terminal portion 10 on the power supply side is on the upper side and the terminal portion 11 on the load side is on the lower side, the terminals of the electric wire 5 are installed at the terminal mounting portions 13 of the terminal portions 10 and 11, and the terminal covers 2 are loaded at the terminal portions 10 and 11.

[0041] First, the assembly procedure of the terminal cover 2 mounted on the terminal portion 10 on the power supply side will be described. Fig.11 and Fig.12 It is a perspective view showing the assembly procedure of the terminal cover mounted on the terminal portion on the power supply side. Fig.13 This is a bottom view showing the assembly sequence of the terminal cover mounted on the terminal portion on the power supply side. Fig.11 As shown in FIG. 1 , first, the baffle body 40 of the baffle portion 4 is inserted into the first insertion portion 35a of each insertion hole 35 formed in the cover body portion 3. Fig.12 As shown in FIG. 1 , if the baffle portion 4 is pressed in until the baffle body 40 is accommodated in the outlet port 34 , the retaining portion 42 of the baffle portion 4 is inserted into the retaining hole 36 and retained on the flat surface portion 30 . Fig.13 As shown, the baffle body 40 rotates approximately 90 degrees toward the outlet side of the electric wire 5 with the shaft 41 as the center due to gravity, and the protrusion 43 abuts against the limiting portion 37, thereby stopping the rotation. Figure 1 As shown, the gap around the electric wire 5 is blocked by the baffle body 40 .

[0042] Next, the assembly procedure of the terminal cover 2 mounted on the terminal portion 11 on the load side will be described. Fig.14 This is a bottom view showing the assembly sequence of the terminal cover mounted on the terminal portion on the load side. Fig.14 As shown, first, the baffle body 40 of the baffle part 4 is inserted into the second insertion part 35b of each insertion hole 35 formed in the cover body part 3. When the baffle part 4 is pressed in until the baffle body 40 is accommodated in the outlet port 34, the retaining part 42 of the baffle part 4 is embedded in the retaining hole 36 and retained on the flat part 30. The baffle body 40 rotates approximately 90 degrees toward the outlet side of the wire 5 with the shaft part 41 as the center due to gravity, and the protrusion 43 abuts against the restriction part 37, thereby stopping the rotation. As a result, the baffle part 4 is mounted on the cover body part 3, and the gap around the wire 5 is blocked by the baffle body 40.

[0043] As described above, the terminal cover 2 involved in the present embodiment can install the baffle part 4 on the cover body part 3 by simply inserting the baffle body 40 of the baffle part 4 into the first insertion part 35a or the second insertion part 35b of each insertion hole 35 and rotating the baffle body 40 toward the side where the electric wire 5 is provided around the shaft part 41, so that the workability of the assembly operation is excellent.

[0044] As described above, the terminal cover 2 according to the present embodiment includes: a cover body 3, which covers the terminal parts 10 and 11 and forms a wire outlet 34 for allowing the electric wire 5 to pass; and a pair of baffle parts 4, which are provided at the wire outlet 34 and block the gap around the electric wire 5. The baffle part 4 is configured to form an insertion through-hole 40a for allowing the electric wire 5 to pass, and is held by the cover body 3 and rotated in a left-right split state, thereby blocking the gap around the electric wire 5. That is, the terminal cover 2 according to the present embodiment can block the gap around the electric wire 5 passing through the wire outlet 34 by the baffle part 4, so that it can prevent the operator's fingers or working tools from contacting the terminal parts 10 and 11 of the electric device 1 through the gap of the wire outlet 34.

[0045] The cover body 3 is provided with a restricting portion 37 for stopping the rotation of the shutter portion 4 at a position closing the gap around the wire 5. Thus, the terminal cover 2 according to the present embodiment can easily dispose the shutter portion 4 at a position closing the gap around the wire 5.

[0046] In addition, the cover body 3 is provided with an insertion hole 35 into which the baffle 4 is inserted. The baffle 4 includes: a baffle body 40 inserted into the insertion hole 35 to close the gap around the electric wire 5; a shaft 41 that can axially support the baffle body 40 in a rotatable manner in a left-right split state; and a retaining portion 42 that is provided at one end of the shaft 41 and is retained by the cover body 3. The insertion through portion 40a is formed by cutting off a part of the baffle body 40. Thus, the terminal cover 2 according to the present embodiment can attach the baffle 4 to the cover body 3 by a simple operation of inserting the baffle body 40 of the baffle 4 into the insertion hole 35 and rotating the baffle body 40 around the shaft 41, so that the workability of the assembly operation is excellent.

[0047] The baffle portion 4 is formed of a hard resin. Therefore, the terminal cover 2 according to the present embodiment can be used safely without any worry, because even if gas is generated when an overcurrent flows and the circuit is disconnected, the baffle portion 4 is not damaged by the gas.

[0048] The configuration described in the above embodiment is merely an example, and may be combined with other known technologies. Part of the configuration may be omitted or changed without departing from the spirit and scope of the invention.

[0049] Hereinafter, various aspects of the present invention will be collectively described as supplementary notes.

[0050] (Note 1)

[0051] A terminal cover covers a terminal portion of an electric device to which a terminal of an electric wire is connected.

[0052] The terminal cover is characterized by having:

[0053] a cover body portion, which covers the terminal portion and is formed with a wire outlet for allowing the wire to pass through; and

[0054] A pair of baffles are provided at the wire outlet to block the gap around the wires.

[0055] The shutter portion is formed with an insertion portion through which the electric wire passes, and is held by the cover body portion and rotated in a left-right split state, thereby being able to close a gap around the electric wire.

[0056] (Note 2)

[0057] The terminal cover according to Supplementary Note 1 is characterized in that:

[0058] The cover body has a restriction portion formed at a position that blocks a gap around the electric wires and that stops rotation of the shutter portion.

[0059] (Note 3)

[0060] The terminal cover according to Supplement 1 or 2 is characterized in that:

[0061] The cover body is provided with an insertion hole into which the baffle portion is inserted.

[0062] The baffle portion includes: a baffle body inserted into the insertion hole to close the gap around the wire; a shaft portion rotatably supporting the baffle body; and a holding portion provided at one end of the shaft portion and held by the cover body portion.

[0063] (Note 4)

[0064] The terminal cover according to Supplementary Note 3 is characterized in that:

[0065] The insertion penetration portion is formed by cutting away a portion of the baffle body.

[0066] (Note 5)

[0067] The terminal cover according to any one of Supplementary Notes 1 to 4, characterized in that:

[0068] The baffle portion is formed of hard resin.

[0069] Description of the label

[0070] 1 electric power equipment, 2 terminal cover, 3 cover body, 4 baffle, 5 electric wire, 10, 11 terminal, 12 inter-electrode partition wall, 13 terminal mounting portion, 14 opening and closing operation portion, 15 upper surface, 16 side surface, 30 plane portion, 31 side wall portion, 32 end wall portion, 32a opening portion, 33 partition wall portion, 34 outlet, 35 insertion hole, 35a first insertion portion, 35b second insertion portion, 36 holding hole, 37 restriction portion, 38 rotation prevention component, 40 baffle body, 40a insertion penetration portion, 41 shaft portion, 42 holding portion, 43 protrusion.

Claims

1. A terminal cover that covers a terminal portion of an electric device to which a terminal of an electric wire is connected, The terminal cover is characterized by having: a cover body portion, which covers the terminal portion and is formed with a wire outlet for allowing the wire to pass through; and A pair of baffles are provided at the wire outlet to block the gap around the wires. The shutter portion is formed with an insertion portion through which the electric wire passes, and is held by the cover body portion and rotated in a left-right split state, thereby being able to close a gap around the electric wire.

2. The terminal cover according to claim 1, wherein: The cover body has a restricting portion formed at a position that blocks a gap around the electric wires and that stops the shutter portion from rotating.

3. The terminal cover according to claim 1 or 2, characterized in that: The cover body is provided with an insertion hole into which the baffle portion is inserted. The baffle portion includes: a baffle body inserted into the insertion hole to close the gap around the wire; a shaft portion rotatably supporting the baffle body; and a holding portion provided at one end of the shaft portion and held by the cover body portion.

4. The terminal cover according to claim 3, characterized in that: The insertion penetration portion is formed by cutting away a portion of the baffle body.

5. The terminal cover according to claim 1 or 2, characterized in that: The baffle portion is formed of hard resin.

Images