JP4113605B2 - Remote terminal block - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a terminal block used as an input / output terminal of an electric device such as a communication terminal, and more particularly to a separation type terminal block suitable for connection to an external electric / electronic device by a large number of conductive wires. .
[0002]
[Prior art]
Conventionally, a terminal block 2 connected to an external device by a large number of conductive wires is fixedly installed on the back surface of the device body 1 as shown in FIG. 1, and the conductive wires to be connected are connected by a large number of terminal screws 3. It is fixed individually. In such a usage situation, the device body is constrained to the place by a large number of conductive wires stretched on the back, so there is no problem under normal usage conditions. Therefore, if it is necessary to change the setting location, or if it is necessary to change or move the equipment due to inspection, repair, repair, etc., disconnect the connected conductive wires from the main equipment and lighten them. However, in order to do so, it is necessary to unscrew and remove the terminal screws of the terminal block that fixes the terminals for all of the conductive wires one by one. It was a loss of time. In addition, there is a possibility that the wiring sequence is mistaken at the time of reconnection, and the treatment and management have been a heavy burden on the operator.
[0003]
[Problems to be solved by the invention]
The purpose of the present invention is to detach the connected conductive wires from the main body of the electric equipment constrained by a large number of connected conductive wires all at once with one touch, and the connecting / disconnecting work of the connected conductive wires which will become more and more complicated in the future. Is to provide a separate terminal block that speeds and secures the operation and significantly reduces work costs.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, the present invention has the following configuration.
(1) A terminal block having a plurality of terminal screws for individually fixing conductive wire terminals is composed of at least a socket portion that is fixed to a main body of an electric device and a screw terminal portion that is easily fitted to the socket portion, The screw terminal portion includes a lead piece that contacts the conductive wire terminal and protrudes below the screw terminal portion, while the socket portion is located at a position facing the lead piece when fitted. A separate type terminal block in which the lead piece and the conductive contact piece are joined when the screw terminal portion and the socket portion are fitted, the screw terminal portion being a terminal The terminal screw side housing is attached to the metal fitting side housing, and the terminal screw side housing has one side surface portion, an upper surface portion, and the other side facing the one side surface portion with respect to the axis of the terminal screw. It has a shape that includes the side surface and is an electrically insulating plug. Is molded of sticks are insulated from the surrounding, a plurality of conductive lines terminal insertion opening on the side surface of one said terminal screw operation hole on the upper surface, and provided on the washer integrally supporting the terminal screw therein A washer guide portion for guiding the washer guide portion in parallel to the axial direction of the terminal screw, the terminal screw and the washer that supports the terminal screw are accommodated, and the terminal fitting side housing is also a base portion and the base portion. from a shape comprising at least two insertion portions mutually parallel protruding downward, is formed in the electrically insulating plastic, they are insulated from the surroundings, threaded portion and said lead pieces to be screwed to the terminal screw supporting a metal terminal having, a support portion projecting upwardly from said base, the said terminal metal fitting on the support unit,該Ri - and arranged to de piece is fixed between the insert On the other hand, the socket part is the terminal fitting. A housing having at least two receptacles to be joined with the insert portion of the housing, said receptor being fixed between the members, separated terminal blocks, characterized in that it consists of conducting possible 受栓 terminal to the body of the electrical device.
(2) At least one set of lever members is provided on the side surface portion of the screw terminal portion, and the lever member is mated with a hook-shaped portion provided on the side surface portion of the socket portion, so that the screw terminal portion can be easily attached to and detached from the socket portion. The separation type terminal block according to claim 1, wherein the separation type terminal block is fixed to the terminal block.
(3) The terminal screw side housing includes a return coil spring accommodating space formed in parallel with the axial direction of the terminal screw, and a part of the return coil spring accommodated in the space supports the terminal screw. The separated terminal block according to claim 2, wherein the terminal block is pressed by a spring pressing portion provided integrally with the washer.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Since the separation type terminal block of the present invention is configured by arranging a plurality of terminal units having the same structure in the longitudinal direction, the following description will be made on one unit. FIG. 2 shows the entire structure of one unit of the separation type terminal block 4 according to the present invention as a side sectional view with a crimp terminal 5 attached to the end of a conductive wire to be connected (not shown). The screw terminal portion 4A occupying / 3 and the socket portion 4B occupying the remaining lower portion 約. The screw terminal portion 4A includes a terminal screw side housing 7 provided with a terminal screw 6 for fixing the crimp terminal 5 and a terminal fitting side housing 8 provided with a terminal fitting 10 formed with a screwing portion 10A screwed with the terminal screw 6. The socket part 4B is constituted by a socket part housing 9 having a conductive plug terminal 11 connected to a wiring network in the apparatus body, and each housing is an electrically insulating plastic. And is insulated from the surroundings. An opposing contact 11 </ b> A formed on the receiving terminal 11 is a tip end 10 </ b> D of a lead piece 10 </ b> C projecting downward from the base 8 </ b> A of the terminal fitting side housing 8 and suspended from the base portion 10 </ b> B of the terminal fitting 10. By inserting in between, the crimp terminal 5 and the plug terminal 11 become conductive.
[0006]
The socket portion 4B is fixed to a device body (not shown), and the screw terminal portion 4A of the terminal block 4 can be separated from the socket portion 4B by grasping the side surface of the screw terminal portion 4A with fingers and pulling it upward. If the device main body is released from the restraint of the connected conductive wire 25 in this manner, the device main body can be moved or otherwise handled very easily, and the conductive lead piece 10C and the contactor appearing on the separation surface of the housing. 11A is covered so as to be shielded by the two insertion portions 8B and 8C and the receiving portions 9B and 9C formed in the respective housings, so that it is not exposed to the surface, and the risk of electric shock is completely avoided. Has been. Therefore, the separation-type terminal block listed here exhibits the characteristics of improving efficiency and safety. Here, the crimp terminal 5 is a separate member from the terminal block 4, but for convenience of describing the structure of the terminal block, it is included in a part of the terminal block constituent member here.
[0007]
As shown in FIG. 2, the housing constituting the screw terminal portion 4A is composed of a terminal screw side housing 7 and a terminal fitting side housing 8, and is manufactured as a separate molded member, which will be described in detail in the embodiment. Assemble and use. One side surface portion 7D of the terminal screw side housing 7 has conductive plug terminal insertion ports 30 for inserting the crimp terminals 5 fixed to the terminal ends of the conductive wires 25. It is provided along. However, the number of openings is not particularly limited, and a few spare units may be set in anticipation of future expansion of equipment functions. Needless to say, it is preferable to provide a partition by the side member 7D of the terminal screw side housing as an insulating member for preventing a short circuit of the crimp terminal 5 between the crimp terminal insertion ports 30.
[0008]
The upper surface portion 7B of the terminal screw side housing 7 is provided with an operation port 14 for rotating the terminal screw 6 with a screwdriver in order to press and fix the crimp terminal 5 to the base portion 10B of the terminal fitting 10. Yes. On the lower facing surface on the screw axis, a screwing portion 10A having a screw thread to be screwed with the terminal screw 6 is provided on the upper surface of the support portion of the terminal metal fitting-side housing 8 to form a screwing portion 10A. The part 10B is supported from below. The crimping terminal 5 is provided with a hole 5A through which the terminal screw 6 can pass. When the terminal screw is pressed and turned by a screwdriver, the terminal screw 6 penetrates the hole 5A of the crimping terminal 5 and is screwed 10A. And the crimp terminal 5 and the terminal fitting 10 are held in a conductive state.
[0009]
The washer 16 is provided in a substantially square washer portion 16D of the washer 16 via a washer 15 so that the terminal screw 6 is free but cannot be removed. As shown in FIG. A washer arm 16C having a substantially rectangular cross section is provided, and a washer guide portion 16A and a spring pressing portion 16B are integrally formed on both ends of the tip of the washer arm 16C. The washer 16 including the arm portion is larger than the terminal screw operation port 14, and the washer guide portion 16A at the tip of one wing side of the arm portion is restrained by the washer guide groove 7A that is slidably displaced parallel to the terminal screw axis direction. Therefore, even when the terminal screw 6 is loosened, the terminal screw 6 does not fall out of the terminal screw operation port 14. The washer guide portion 16A has a rectangular shape, and moves up and down along the washer guide groove 7A as the terminal screw moves up and down. However, since it has substantially the same length as the terminal screw 6, the terminal screw 6 and the terminal fitting The fixing of the threaded portion 10A is not hindered. When the terminal screw 6 is in a fixed state where it is screwed to the screwing portion 10A, the top of the terminal screw sinks deeply from the upper terminal block upper surface portion 7B, and the terminal screw operation port 14 is sufficiently smaller than the fingertip. The upper surface portion 7B has the function of a finger protector that also serves as a terminal screw stopper. Since the washer portion 16D has a substantially square shape, not only a round crimp terminal or a Y-shaped crimp terminal but also a terminal can be securely fixed even when the terminal is a bare conductive wire.
[0010]
As shown in FIG. 3, the spring pressing portion 16B at the tip of the other wing side of the washer arm portion 16B is such that the return coil spring guide rod 31 faces downward from the lower surface of the upper surface portion 7B of the terminal screw side housing. In parallel with the axial direction, the cylindrical return coil spring insertion hole 7C is passed through substantially the center and extends to the upper surface of the base 8A of the terminal fitting side housing. The return coil spring 27 is housed in the insertion hole 7C in a lightly compressed state around the return coil spring guide rod 31, the lower end of the spring is on the upper surface of the base 8A of the terminal fitting side housing, and the upper end of the spring is the spring. The terminal screw 6 is always in contact with the lower surface of the pressing portion 16B and acts to press the terminal screw 6 against the lower surface of the terminal screw side housing upper surface portion 7B via the washer 16. In such a state that the terminal screw is crimped to the lower surface of the upper surface portion 7B, it is used so that the crimp terminal 5 can be replaced by utilizing a gap generated between the terminal screw tip and the upper surface of the terminal fitting 10. It is necessary to maintain a distance necessary for mounting the crimp terminal, and the return action of the return coil spring to the raised position is a very effective means for reducing the mounting work, as shown in FIG. The structure in which the washer guide portion and the spring pressing portion are provided in parallel allows the length of the washer guide portion to be as short as the length of the terminal screw, eliminating the need to increase the overall depth length and saving. Effective for spacing.
[0011]
When the terminal screw 6 whose top is protruding from the terminal screw operation port 14 of the terminal screw side housing is lowered by pressing it from above with an appropriate tool such as a screwdriver, the washer guide portion 16A and the spring pressing portion 16B are also moved. When the return coil spring 27 is further compressed from the initial light compression state and the terminal screw 6 is fastened to the screwing portion 10A, the crimp terminal 5 is clamped and fixed between the washer portion 16D and the terminal fitting 10. The compression amount of the coil spring reaches the maximum level, and in this state, the separation type terminal block 4 of the present invention normally exhibits a connection function as a terminal block. If it is necessary to remove or replace the connection terminal for some reason, the return coil spring 27 immediately compressed to the maximum level can be obtained by loosening the terminal screw 6 and releasing it from the screwing member 10A. The restoring force acts to raise the terminal screw to the return position shown in FIG. 2, and a sufficient gap for automatically replacing the crimp terminal is automatically provided between the tip of the terminal screw 6 and the upper surface of the terminal fitting 10. Therefore, not only can the crimping terminal 5 be easily removed and inserted, but the terminal screw always stays at a substantially fixed position in a substantially fixed posture, so that it is necessary to drop the terminal screw, find it, or change it to a posture that is easy to handle. However, it is possible to obtain the merit that the descent and fixing operation can be performed again easily and efficiently as it is.
[0012]
The two support portions 8D and 8E projecting upward from the base 8A of the terminal fitting side housing 8 fix the screwing member 10 formed on the terminal fitting 10 at the tip thereof in accordance with the axis of the terminal screw 6. . The screwing portion 10 may be formed by integral molding with the terminal fitting side housing 8 instead of the terminal fitting. Also, the screwing portion 10 is made as a separate member from the viewpoint of freedom of material selection, ease of processing, etc. 8 may be fixed by adhesion, fusion, or any other method.
10A of screwing parts are fixed to the front-end | tip of two support parts 8D and 8E extended upward from base 8A of the terminal metal fitting side housing according to the axial center of a terminal screw. A leading end portion 10D of a lead piece 10C suspended from the base portion 10B of the terminal fitting 10 protrudes downward from the base portion 8A of the terminal fitting side housing, and opposes the receiving terminal 11 provided in the socket portion housing 9. It engages with the contact piece 11A to perform the function as a terminal block. Since the distinctive function of the separation type terminal block of the present invention is exhibited by easy attachment and detachment of the screw terminal portion and the socket portion, the terminal fitting 10 is pulled, compressed, bent when it is detached from the receptacle terminal 11. The terminal fitting is bent into a U-shape as shown in FIG. 2 so that it can withstand the repeated application of various loads. It is preferable to make a large contact area with 8E. Risk of electric shock when the lead piece tip 10D of the terminal fitting protruding downward from the base portion 8A of the terminal fitting side housing 8 is separated from the socket portion, impact that may be caused by improper handling, etc. In order to protect against this injury, the two insertion portions 8B and 8C are provided so as to be higher than the leading end portion 10D of the lead piece with the leading end portion 10D of the lead piece interposed therebetween. What is important here is that the height of the insertion portions 8B and 8C is made higher than the leading end portion 12A of the lead piece to ensure the protective shielding effect. These insertion members also function as leading members when the screw terminal portion and the socket portion are coupled, and reliably guide the leading end of the lead piece between the two contacts 11A of the plug terminal 11.
[0013]
The two receiving portions 9B and 9C projecting from the base portion 9A of the socket housing 9 have the contact 11A conductive contact piece 11 of the plug terminal 11 in the gap between them to prevent an electric shock accident due to the contact piece and the contact piece machine. Protects against mechanical damage. Accordingly, the height of the receiving portions 9B and 9C is preferably higher than that of the contact 11A, and this relationship is exactly the same as that of the insertion piece 8B and 8C described above with respect to the leading end portion 12A of the lead piece. . The contact 11A has a symmetrical shape in which a flat plate-like metal material having good conductivity and rich in elastic recovery is bent at the center so as to be folded, and as shown in FIG. It is formed in a shape, and the tip portion thereof enters a recess on the surface of the receiving portions 9B and 9C, and the inserted lead piece tip portion 10D is securely inserted between the opposing surfaces in contact with each other. It is structured to be sandwiched between. The lower part of the contact 11A is connected to each part of the main body via the lead piece 11B, and the socket housing 9 is fixed to the back of the apparatus main body by screws, bonding, or any other means by the electric apparatus main body case 26.
[0014]
The assembly sequence of the terminal device of FIGS.
Among engineering plastics, materials with particularly high mechanical strength and toughness, and excellent electrical properties such as withstand voltage and electrical insulation, such as polycarbonate (PC), noryl resin (modified PPO), and polybutylene telef The three molded products of the terminal screw side housing 7, the terminal fitting side housing 8, and the socket part housing 9, which are respectively formed by integral molding by a turret (PBT) or the like, are subjected to machining such as drilling and cutting. After that, the terminal fitting 10 is first fixed separately to the terminal fitting-side housing 8. The terminal fitting 10 is carefully fixed so that the three bent surfaces are firmly and uniformly fixed to any of the upper and side surfaces of the support portions 8D and 8E of the terminal fitting-side housing and the inner surface of the through hole of the base portion.
[0015]
Next, a contact piece 11A made of brass is inserted from above into the gap between the two receiving portions 9B, 9C of the socket housing 9, and the lead piece 11B of the plug terminal is inserted at the center from below the bottom surface. At the same time, screws are fixed to the base 9A. Moreover, it fixes to the apparatus main body case 26 by arbitrary means, such as screwing and adhesion | attachment, on the outer side of side part 9D of the socket part housing 9. FIG. The material of the fixing member 21 is plastic, metal or the like.
[0016]
Further, in order to attach components to the terminal screw side housing 7, first, the terminal screw 6 on which the washer 15 is set can be rotated to the washer portion 16D of the washer 16 from the base portion direction of the terminal screw side housing 7. Install so that it does not come out. Next, the washer guide portion 16A is inserted into the terminal screw side housing along the washer guide groove 7A provided in the terminal screw side housing 7 so that the top of the terminal screw is located at the terminal screw operation port position. The terminal screw is loaded into the terminal screw side housing, and the return coil spring 27 is then inserted into the storage space formed around the return coil spring guide rod 31 in the terminal screw side housing 7. The terminal fitting side housing 8 to which the terminal fitting 10 is fixed is crimped and fixed from the base direction of the terminal screw side housing 7 while lightly pushing the end of the return coil spring 27.
[0017]
The two housings 7 and 8 that have been joined are press-fitted so that the insertion members 8B and 8C are placed along the outer surfaces of the receiving members 9B and 9C of the socket housing 9 and contact the lead piece tip 10D of the terminal fitting. By engaging the child 11A, the screw terminal portion and the socket portion are fitted to complete the assembly.
[0018]
In use, it is fixed to the back surface of the device main body case 26 by any means such as screwing, and the crimp terminal 5 connected to the conductive wire is inserted from the crimp terminal insertion port provided on the side surface of the terminal screw side housing 7, Each terminal is fixed with a terminal screw 6. Since the top of the terminal screw 6 is lightly pressed by the return coil spring 27 and pressed against the terminal screw operation port 14, it is pushed by a screwdriver and penetrates the hole 5A of the crimp terminal 5 to the screwing portion 10A of the terminal fitting. The crimping terminal 5 is tightened by screwing, and the crimping terminal 5 and the receiving terminal 11 are brought into conduction.
[0019]
In the separation type terminal block according to the present invention, the screw terminal portion and the socket portion are fitted by fitting the housings and joining the conductive members, which has a sufficient fixing effect, but makes the fixing effect more reliable. Therefore, it is preferable to provide a connecting lever member for holding and fixing the socket portion on the terminal block. As shown in FIG. 5, at least a pair of coupling lever members is provided on the side surface of the screw terminal portion, such as both ends of the terminal screw side housing 7 in the longitudinal direction. The connecting lever member may be of a generally used structure. For example, a lever 23 having a hook portion 32 at the tip, which is rotatably fixed by a shaft 24, is provided, and a screw terminal portion is used as a socket portion. When inserting, the structure which the front-end | tip of the lever 23 moves along the side surface of the socket part housing 9, and fits with the hook-shaped part 33 of the socket part provided in the opposition part of a lever is mentioned. By providing such a structure, it does not come off during use and exhibits a stable fixing function. When removing the terminal block from the socket portion, the screw terminal portion 7 is easily removed from the socket portion 9 by lightly pressing the upper portion of the lever 23 and removing the hook portion 32 at the tip of the lever from the hook-shaped portion 33 of the socket portion. be able to.
[0020]
【The invention's effect】
According to the present invention, the following effects can be obtained.
(1) When the main body is moved by making the terminal block connected to the device main body into a structure in which the screw terminal portion and the socket portion can be divided, a large number of connected conductive wires are connected to individual connection points. Without removing all of these, one-touch separation can be performed at one time, the number of removal steps can be greatly reduced, and there is no need to reconnect the conductive wires, so that there is no coupling error. The coupling terminal that appears in the separated part is shielded by an insulating member and mechanically protected, so it is safe from exposure to electric shock and mechanical damage due to mishandling. Protected.
(2) The insertion portion protruding below the screw terminal portion also functions as a leading member when the screw terminal portion is inserted into the socket portion, while sliding on the receiving portion surface provided in the socket portion housing, Since the lead piece is joined to the conductive contact piece, there is no conduction failure due to the displacement of the joining position between them, and no damage due to excessive joining.
(3) By fitting the insertion part projecting downward from the screw terminal part, the receiving part projecting upward from the socket part housing, and the lead piece and the conductive contact piece, the fitting of both blocks is secured, A stable conduction function is maintained.
(4) The screw member is securely connected to the socket part by the lever member provided on the screw terminal part, and it is sufficiently stable against long-term vibration and other unexpected sudden external forces. It is secured and the function as a terminal block is maintained.
(5) Before the crimp terminal connection, the terminal screw is held in the return position at the top of the terminal screw side housing by the return coil spring, and the crimp terminal can be easily inserted into the gap at the tip of the terminal screw. When removing the crimp terminal, if the terminal screw is loosened, the restoring force of the return coil spring automatically returns to the return position and is held at a fixed position in a fixed position. Not only is it efficient, it also eliminates the loss of shorting and losing the terminal wires and searching for small terminal screws, which contributes to improved efficiency.
[Brief description of the drawings]
FIG. 1 is a front view of a conventional terminal block.
FIG. 2 is an enlarged cross-sectional view of a terminal unit portion of a separation type terminal block that is one embodiment of the present invention.
3 is a view showing a structure of a washer that supports a terminal screw of the separation type terminal block of FIG. 2 and its peripheral portion. FIG.
FIG. 4 is a diagram showing a state in which a terminal block is fixed by a connecting lever member according to another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Electrical equipment main body 2 Conventional terminal block 3 Terminal screw attached to the conventional terminal block 4 Separate type terminal block 4A of this invention Screw terminal part 4B Socket part 5 Crimp terminal 5A Hole 6 Terminal screw 7 Terminal screw part side Housing 7A Washer guide groove 7B Upper surface portion 7C of terminal screw portion side housing Return coil spring insertion hole 7D Conductive wire terminal insertion port 8 Terminal fitting side housing 8A Terminal fitting side housing base 8B Terminal fitting side housing insertion portion 8C Terminal fitting side Housing insertion portion 8D Terminal bracket side housing support portion 8E Terminal bracket side housing support portion 9 Socket portion housing 9A Socket portion housing base portion 9B Socket portion housing receiving portion 9C Socket portion housing receiving portion 9D Side surface of the socket portion housing Part 10 Terminal fitting 10A Terminal fitting screwing portion 10B Terminal fitting base 10 C Terminal metal lead piece 10D Lead piece tip 11 Receptacle terminal 11A Contact 11B Receptacle terminal lead piece 14 Operation port 15 Washer 16 Washer 16A Washer guide portion 16B Spring pressing portion 16C Washer arm portion 16D Washer portion 21 Socket Part fixing member 22 Conducting part 23 Coupling lever member 24 Coupling lever shaft 25 Conductor 26 Electrical device main body case 27 Terminal screw return coil spring 31 Guide rod 32 Coupling lever tip hook part 33 Engage with the hook Bowl

Claims (3)

A terminal block having a plurality of terminal screws for individually fixing the conductive wire terminals is composed of at least a socket portion for fixing to the main body of the electric device and a screw terminal portion that can be easily attached to and detached from the socket portion. Has a lead piece that contacts the conductive wire terminal and protrudes below the screw terminal portion, while the socket portion can be electrically connected to the main body of the electrical device at a position facing the lead piece when fitted. A separate terminal block that is joined to the lead terminal and the conductive contact piece when the screw terminal portion and the socket portion are fitted to each other. The terminal screw side housing is provided with a side surface portion, an upper surface portion, and the other side surface portion facing the one side surface portion with respect to the axis of the terminal screw. Insulating plastic Molded using the clock, are insulated from the surrounding, a plurality of conductive lines terminal insertion opening on the side surface of one said terminal screw operation hole on the upper surface, and provided on the washer integrally supporting the terminal screw therein A washer guide portion for guiding the washer guide portion in parallel to the axial direction of the terminal screw, the terminal screw and the washer that supports the terminal screw are accommodated, and the terminal fitting side housing is also a base portion and the base portion. from a shape comprising at least two insertion portions mutually parallel protruding downward, is formed in the electrically insulating plastic, they are insulated from the surroundings, threaded portion and said lead pieces to be screwed to the terminal screw supporting a metal terminal having, a support portion projecting upwardly from said base, the said terminal metal fitting on the support unit,該Ri - and arranged to de piece is fixed between the insert On the other hand, the socket portion has a housing on the side of the terminal fitting. A housing having at least two receptacles to be joined with the insert portion of the ring, the receptor is fixed between the members, separated terminal blocks, characterized in that it consists of conducting possible 受栓 terminal to the body of the electrical device.   At least one set of lever members is provided on the side surface portion of the screw terminal portion, and the lever member is engaged with the hook-shaped portion provided on the side surface portion of the socket portion, so that the screw terminal portion is easily fixed to the socket portion. The separation-type terminal block according to claim 1, wherein   The terminal screw side housing includes a return coil spring accommodating space formed in parallel with the axial direction of the terminal screw, and a part of the return coil spring accommodated in the space includes a washer for supporting the terminal screw. The separation type terminal block according to claim 2, wherein the separation type terminal block is pressed by a spring pressing portion provided integrally.

Images