JP2010123975A - Adjusting guide for power cord - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and surely adjust the lengths of the power cord of an alarm or an optional electrical apparatus without using a cord take-up device. <P>SOLUTION: Adjustment marks 7e and 7f for adjusting the length of a power cord 9 inserted into the case 2 of the alarm 1 from outside and connected to a power supply connection terminal 10 provided at a connection space portion 8 in the case 2 are provided on an external surface of the case 2, and show a length substantially equal to the length of the power cord 9 led in the connection space portion 8 and reaching the power supply connection terminal 10. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a power supply cord adjustment guide for adjusting the length of a power supply cord with respect to a circuit board housed in a casing of an electric device.

  As a structure for supplying electric power to various electric devices, generally, a battery type that supplies electric power using a battery built in the electric device, and an electric power cord (AC cord) connected to the electric device is used. There is a wired supply type that supplies. In particular, a wired supply type is often adopted for electric devices with high power consumption in order to stably supply power over a long period of time.

  For example, among alarm devices that detect various abnormalities that occur in the monitoring area and issue an alarm, in particular, a gas leak alarm device having a gas leak detection function, or a fire gas having a combined gas leak detection function and fire detection function In the leak alarm device, since the power consumed in the gas detection element is relatively large, a wired supply type in which power is supplied using a power cord has been adopted.

  Here, when power is supplied using the power cord in this way, a problem regarding adjustment of the length of the power cord may occur. In other words, since the length from the alarm to the outlet varies depending on the installation location of the alarm, the worker adjusts the length of the power cord to the installation location at the installation location. Need to do.

  In this way, the simplest method for adjusting the length of the power cord is to cut either one of the ends of the power cord to an appropriate length, and strip the coating at the cut end to expose the cord core wire. The cord core wire is connected to a power connection terminal inside the alarm device or the outlet tap. Here, the conventional power connection terminal is configured by fastening two plates with one screw, and by inserting a cord core wire between these two plates and tightening the screws, The cord core wire is sandwiched between the two plates.

  Another method for adjusting the length of the power cord is to wind the power cord around the back of the alarm. Specifically, a thick cord winding portion is provided on the back surface of the alarm device, and an extra power cord can be wound on the cord winding portion only once to a plurality of times (for example, Patent Document 1). reference).

JP-A-8-190683

  However, the method of cutting the power cord can completely adjust the power cord to an arbitrary length, but requires various problems. That is, since it was necessary to peel the coating and expose the cord core wire, there was a problem that it was necessary to use a dedicated instrument, or the cord core wire was accidentally cut together with the coating. Alternatively, when the exposed cord core wire is inserted into the power connection terminal, the cord core wire has to be twisted by hand in order to gather the cord core wire.

  In addition, in the method of winding the power cord around the cord winding portion, it is necessary to provide a thick cord winding portion on the back surface of the alarm device, so that the manufacturing cost of the alarm device increases as the number of members increases. It was. Further, since the alarm device becomes thick, there is a problem that it is contrary to the recent demand for downsizing the alarm device and the design property is lowered.

  The present invention has been made in view of the above, and it is possible to easily and reliably adjust the length of a power cord of an alarm device or any other electric device without using a cord winding unit. The purpose is to provide a power cord adjustment guide.

  In order to solve the above-described problems and achieve the object, the guide means according to claim 1 is a power cord that is inserted from the outside of the housing of the electric device into the inside, and is connected to the inside of the housing. A guide means for adjusting the length of a power cord connected to a power connection terminal provided in the space, wherein the guide means is provided on an outer surface of the housing and is drawn into the connection space. And displaying a length substantially equal to the length of the power cord reaching the power connection terminal.

  The guide means according to claim 2 is the guide means according to claim 1, wherein the guide means has an interval substantially equal to the length of the power cord that is drawn into the connection space and reaches the power connection terminal. It is a pair of adjustment marks arranged apart from each other.

  According to a third aspect of the present invention, the guide means according to the first or second aspect is characterized in that the guide means is provided on the back surface of the casing.

  According to a fourth aspect of the present invention, in the guide means according to the first or second aspect, the guide means is provided on a side surface of the casing.

  The guide means according to claim 5 is the guide means according to any one of claims 1 to 4, wherein the electrical device is an alarm.

  According to the present invention, it is possible to easily adjust the power cord to the optimum length for connecting to the electric device using the guide means.

3 is a front view of an alarm device in Embodiment 1. FIG. It is a rear view of the alarm device of FIG. It is a side view in the attachment state of the alarm device of FIG. 3 is a perspective view of a power connection terminal in Embodiment 1. FIG. It is a perspective view from the direction different from FIG. 4 of a power supply terminal. FIG. 5 is an exploded perspective view of the power connection terminal of FIG. 4. It is a longitudinal cross-sectional view of the power supply connection terminal of FIG. 4 in the state before connection. It is a front view of the power supply connection terminal of FIG. 4 in the state before connection. It is a longitudinal cross-sectional view of the power supply connection terminal of FIG. 4 in the state after a connection. It is a front view of the power supply connection terminal of FIG. 4 in the state after a connection. FIG. 5 is a perspective view of the power connection terminal of FIG. 4 in a state before connection. FIG. 5 is a perspective view of the power connection terminal of FIG. 4 in a connected state. It is a perspective view of the power supply connection terminal of FIG. 4 in the state after a connection. It is a longitudinal cross-sectional view of the junction part and power supply cord in the state after a connection. FIG. 3 is a perspective view of the periphery of a winding stopper in FIG. 2. 6 is a perspective view of a power connection terminal in Embodiment 2. FIG. It is a longitudinal cross-sectional view of the power connection terminal of FIG. FIG. 17 is an exploded perspective view of the power connection terminal of FIG. 16. 10 is a perspective view of a power connection terminal in Embodiment 3. FIG. It is a longitudinal cross-sectional view of the power supply connection terminal of FIG. FIG. 20 is an exploded perspective view of the power connection terminal of FIG. 19. FIG. 10 is a perspective view of a power supply connection terminal in a fourth embodiment. It is a side view of the power supply connection terminal of FIG. It is a longitudinal cross-sectional view which shows the power supply connection terminal of FIG. 22 with a board | substrate. FIG. 10 is a perspective view of a power supply connection terminal in a fifth embodiment. FIG. 10 is a perspective view of a power connection terminal in a sixth embodiment. It is a longitudinal cross-sectional view of the power connection terminal of FIG. FIG. 20 is a perspective view of a power supply connection terminal in a seventh embodiment. FIG. 29 is a side view of the power connection terminal of FIG. 28. FIG. 20 is a perspective view of a power connection terminal in an eighth embodiment. It is a side view of the power connection terminal of FIG. It is a side view of the power supply connection terminal in the state before connection in Embodiment 9. It is a side view of the power supply connection terminal in the state after the connection of FIG. FIG. 38 is a perspective view of a power connection terminal in a state before connection in the tenth embodiment. It is a side view of the power supply connection terminal of FIG. FIG. 35 is a side view of the power connection terminal of FIG. 34 in a state after connection. FIG. 38 is a perspective view of a power connection terminal in an eleventh embodiment. FIG. 38 is a perspective view of a power connection terminal according to the twelfth embodiment. FIG. 38 is a perspective view of a power connection terminal in a state before connection in the thirteenth embodiment. FIG. 40 is a perspective view of the power supply connection terminal in the state after connection shown in FIG. 39. FIG. 38 is a perspective view of a power supply connection terminal in the fourteenth embodiment. It is a perspective view of the power supply connection terminal of FIG. 41 in the state which inserted the power cord. FIG. 38 is a longitudinal sectional view of a power connection terminal in the fifteenth embodiment. FIG. 44 is an enlarged perspective view of the periphery of the joint portion of FIG. 43. FIG. 44 is a front view of the periphery of the joint of FIG. 43. It is a front view of the junction part periphery of FIG. 43 in the state after a connection. FIG. 38 is a perspective view of a power supply connection terminal in the sixteenth embodiment. 48 is a perspective view of the power connection terminal of FIG. 47 in a state after connection. FIG. FIG. 38 is a perspective view of a winding stopper in the seventeenth embodiment. FIG. 18 is a longitudinal sectional view showing a winding stopper in Embodiment 17 together with a power cord 9;

  Hereinafter, embodiments of a power connection terminal and the like according to the present invention will be described in detail with reference to the accompanying drawings. First, [I] the basic concept of the present invention will be described, then [II] each embodiment of the present invention will be described, and [III] Finally, modifications to each embodiment of the present invention will be described.

[I] Basic concept of the present invention First, the basic concept of the present invention will be described. The present invention relates to a power connection terminal that is provided in an electrical device and connects a power cord to the electrical device. Here, although the specific content of the electrical equipment is arbitrary, a fire gas leak alarm (hereinafter simply referred to as an alarm) that detects the occurrence of a fire and a gas leak in the monitoring area will be described below as an example.

  The basic feature of this power connection terminal is that the end of the power cord is inserted into the power connection terminal and then a part of the power connection terminal is moved, so that the needle-like shape provided around this moving part and its surroundings. The part is to be crimped to the power cord, and this needle-shaped part breaks the coating of the power cord and reaches the cord core wire. Thus, the cord core wire is indirectly connected to the circuit board connected to the power connection terminal via the power connection terminal, and the power cord can be connected to the alarm device.

  In this structure, as a specific work at the time of connection, the power cord is cut to an arbitrary length, the end of the power cord is inserted into the power connection terminal, and a part of the power connection terminal is moved. . Accordingly, it is not necessary to remove the coating on the end of the power cord, so that the power cord can be easily connected. In addition, since the power cord can be cut to an arbitrary length, the cord winding portion is not necessary, and the thickness of the alarm can be reduced.

  In such a configuration, the power connection terminal has various characteristics including (1) stabilization of connection, (2) mobility of moving parts, and (3) accuracy and stability of work. Various ideas are given. These details will be described in detail in the following embodiments.

  An adjustment guide for measuring the length of the power cord is provided to facilitate the determination of the length of the power cord. Details of this adjustment guide will be described later.

  Also, in order to prevent the power cord from accidentally falling off when the power cord is connected to the power connection terminal, even if a tensile load is applied to the power cord, A power cord winding stop portion is provided so as not to be directly applied to the joint portion with the power connection terminal. Details of the winding stop will be described in the following embodiments.

[II] Embodiments of the Present Invention Hereinafter, embodiments of the power connection terminal according to the present invention will be described.

[Embodiment 1]
First, the first embodiment will be described. The configuration of the alarm device will be described first, but a known configuration can be adopted for a configuration that is not particularly described. 1 is a front view of the alarm device, FIG. 2 is a rear view of the alarm device, and FIG. 3 is a side view of the alarm device in an attached state. As shown in these drawings, the alarm device 1 according to the first embodiment includes a housing 2, a smoke inlet 3, a gas inlet 4, and a locking part 5. In the following description, each direction relating to the alarm device 1 is defined as X, Y, and Z in FIGS. 2 and 3, and the X direction is the horizontal direction or the horizontal direction, and the Y direction is the insertion direction or The front-rear direction and the Z direction are referred to as a height direction or a vertical direction.

  Among these, the housing | casing 2 is a basic structure of the alarm device 1, and is comprised in the substantially square shape combining the front cover 6 and the back cover 7 mutually. The smoke inlet 3 is for introducing smoke into the alarm device 1 and detecting the presence or absence of a fire by measuring the concentration of the smoke thus introduced by a known method. Can do. In addition, the gas inlet 4 introduces gas into the alarm device 1 and detects the presence or absence of gas leakage by measuring methane among the introduced gases by a known method. And the presence or absence of incomplete combustion can be detected by measuring carbon monoxide by a known method. Moreover, the latching | locking part 5 is a fixing means for attaching the housing | casing 2 to a monitoring area | region, and is provided in the upper part of the back cover 7 so that it may illustrate in FIG.

  Here, as shown in FIGS. 2 and 3, the back cover 7 is provided with a main body portion 7a and an attaching / detaching portion 7b positioned below the main body portion 7a. The attaching / detaching portion 7b is provided on the main body portion 7a. On the other hand, it is detachable. A connection space portion 8 is formed below the back side of the alarm device 1 covered with the detachable portion 7b, and a power connection terminal 10 and a winding prevention portion 20 are provided in the connection space portion 8. A part of a two-wire type power cord 9 connected to a commercial power source or the like is drawn into the connection space 8, and a part of the power cord 9 is wound by a winding stop 20. Stopped. Further, the end of each line of the power cord 9 is connected to the power connection terminal 10. Here, as shown in FIG. 3, the power connection terminal 10 is connected to the circuit board 11, that is, the power cord 9 is connected to the circuit board 11 via the power connection terminal 10.

  As shown in FIG. 2, adjustment guides 7c and 7d are drawn on the back cover 7, and adjustment marks 7e and 7f are drawn at positions near both ends of the adjustment guides 7c and 7d. The adjustment guides 7c and 7d and the adjustment guides 7c and 7d are for cutting the power cord 9 to an appropriate length, and correspond to the guide means in the claims. The distance between the adjustment marks 7e and 7f is determined so as to be approximately equal to the optimum length of the power cord 9 that is drawn into the connection space 8 and reaches the power connection terminal 10. Therefore, when one end of the power cord 9 is connected to the commercial power source and the other end of the power cord 9 is connected to the alarm 1, the other end of the power cord 9 is moved along the adjustment guides 7c and 7d, The power cord 9 can be easily adjusted to the optimum length for connecting to the alarm device 1 by leaving only the interval of 7e and 7f and cutting the remainder. In addition, such a guide means can also be provided in arbitrary positions other than the back cover 7, For example, you may provide in the side surface of the housing | casing 2. FIG.

  Next, the power connection terminal 10 according to the first embodiment will be described in detail. 4 is a perspective view of the power connection terminal, FIG. 5 is a perspective view of the power connection terminal from a different direction from FIG. 4, and FIG. 6 is an exploded perspective view of the power connection terminal. As shown in these drawings, the power connection terminal 10 includes a base 12, a joint portion 13, a moving plate 14, and an operation screw 15. Each part of the power supply connection terminal 10 is formed of an arbitrary conductive member, for example, a light metal, unless otherwise specified, thereby supplying power supplied from the power cord 9 to the circuit board 11. introduce.

  Among these, the base 12 constitutes a structure of the power supply connection terminal 10 and constitutes a connection to the circuit board 11 and corresponds to the base in the claims. Although the specific shape of this base 12 is arbitrary, in this Embodiment, the base 12 is formed so that a side shape may become a substantially downward U-shape. An opening 12 a for inserting the end of the power cord 9 is formed on one side of the base 12. Also, four terminals 12b are formed at the lower end of the base 12, and these terminals 12b are inserted into holes of the circuit board 11 (not shown) and electrically connected to the circuit board 11 by a known connection method such as solder. By connecting, the power connection terminal 10 can be connected to the circuit board 11.

  Further, the joining portion 13 is crimped to the power cord 9 inserted through the base 12 so as to break the coating 9a of the power cord 9 and reach the cord core wire 9b, and corresponds to the joining means in the claims. . The specific shape of the joint portion 13 is arbitrary, but in the present embodiment, the joint portion 13 is configured as an acute needle-like body facing upward.

  The moving plate 14 is moved with respect to the base 12 so that at least one of the joint portion 13 and the power cord 9 is crimped to the other, and corresponds to the moving means in the claims. . The moving plate 14 is formed in a substantially flat plate shape. The joint portion 13 described above is integrally formed at the front end portion of the moving plate 14, whereby the side shapes of the moving plate 14 and the joint portion 13 are substantially upward L-shaped as a whole.

  The operation screw 15 moves the moving plate 14, and corresponds to the operation means in the claims. In the present embodiment, as shown in FIG. 6, the operation screw 15 is inserted into the spring washer 15a and the flat washer 15b, penetrates the hole 12e of the base 12, and is screwed into the screw hole 14c of the moving plate 14. To do. When the operation screw 15 is turned, the moving plate 14 is moved upward.

  In such a configuration, connection of the power cord 9 is performed as follows. 7 is a longitudinal sectional view of the power connection terminal in the state before connection, FIG. 8 is a front view of the power connection terminal in the state before connection, FIG. 9 is a longitudinal sectional view of the power connection terminal in the state after connection, 10 is a front view of the power connection terminal in the state after connection, FIG. 11 is a perspective view of the power connection terminal in the state before connection, FIG. 12 is a perspective view of the power connection terminal in the state of connection, FIG. These are the perspective views of the power supply connection terminal in the state after a connection.

  As shown in FIGS. 7, 8, and 11, in the initial state before connection, the moving plate 14 is positioned in the vicinity of the lower end of the operation screw 15, and thereby, there is a space between the moving plate 14 and the upper surface of the base 12. Is formed. In such a state, as shown in the perspective view of FIG. 12, the end of the power cord 9 cut to an arbitrary length is inserted through the opening 12 a of the base 12.

  Then, by turning the operation screw 15 in a predetermined direction with a screwdriver or the like, the moving plate 14 moves upward with respect to the operation screw 15, and the power cord 9 is crimped by the joint portion 13. More specifically, as shown in the longitudinal sectional view around the joint portion in the connected state in FIG. 14, the joint portion 13 breaks the cover 9a of the power cord 9 and reaches the cord core wire 9b. Thereby, the connection of the power cord 9 is completed.

  Here, the power connection terminal 10 is provided with various devices for improving the bondability of the power cord 9. Hereinafter, the point regarding this bondability improvement is demonstrated.

  First, as shown in FIGS. 7 to 10, the power cord 9 is crimped between the moving plate 14 and the base 12. Here, the moving plate 14 is supported by the operation screw 15, and the operation screw 15 is further supported by the upper surface of the base 12. Accordingly, when the operation screw 15 is turned to crimp the power cord 9, this crimping force is transmitted inside the movable plate 14, the power cord 9, and the upper surface of the base 12, and is transmitted below the base 12. Is prevented. For this reason, even when the operation screw 15 is turned too much, the fastening force is transmitted only inside the power connection terminal 10 and is not transmitted from the power connection terminal 10 to the circuit board 11. This prevents the terminal 12b from being detached from the circuit board 11 or deforming the circuit board 11. As a result, it is not necessary to pay excessive attention to the work of turning the operation screw 15, and the work can be performed more easily.

  As shown in FIG. 6, the joint portion 13 includes a central joint tooth portion 13 a and a pair of joint support portions 13 b on both sides thereof. Among these, the joint tooth portion 13a breaks the coating 9a of the power cord 9 and reaches the cord core wire 9b. The pair of joint support portions 13b guides the power cord 9 toward the joint tooth portion 13a at the center and restricts the movement of the joint tooth portion 13a more than necessary. Here, the joint tooth portion 13a is formed so that the upper surface thereof is slightly lower than the upper surface of the joint support portion 13b. The heights of the joint tooth portion 13a and the joint support portion 13b are determined when the power cord 9 is crimped at the joint portion 13 and the joint tooth portion 13a reaches the cord core wire 9b. In a state where the cord core wire 9b is not damaged more than necessary by the portion 13a, the joining support portion 13b abuts on the inner surface of the upper piece of the base 12, and further upward movement of the joining tooth portion 13a is restricted. Has been determined to be. Therefore, the power supply cord 9 is not excessively pressure-bonded by the joint tooth portion 13a, and unnecessary damage is not given to the power supply cord 9, so that the bondability is improved.

  Further, as shown in FIG. 8, the height H of the pair of joint support portions 13b (in FIG. 8, only the joint portion 13 is shown) and the width W of the opening 12a of the base 12 are the height H. <The width W is determined so that the space portion surrounded by the pair of joint support portions 13b and the opening portion 12a is formed in a horizontally long flat shape (non-square shape). Further, the height H of the joint support portion 13b is determined so that the height H of the joint support portion 13b <the diameter D of the power cord 9 when not crimped. Therefore, by inserting the end of the power cord 9 into the opening 12a and turning the operation screw 15, the power cord 9 is pushed from above and below and spreads in the lateral direction. Thus, by deform | transforming the power cord 9 into a flat shape, the junction part 13 can be reliably crimped | bonded with respect to the power cord 9, and the junction part 13 can be made to reach | attain the cord core wire 9b reliably.

  Further, the operation screw 15 is disposed on the rear side of the center position of the base 12 in the insertion direction of the power cord 9. Specifically, in FIG. 7, when the distance from the front surface of the base 12 to the operation screw 15 is L1, and the distance from the operation screw 15 to the rear surface of the base 12 is L2, the operation screw 15 is set so that L1> L2. The position of is determined. Therefore, when the end of the power cord 9 is inserted into the opening 12a of the base 12, a long distance can be secured until the end of the power cord 9 hits the operation screw 15, and the power cord 9 is more securely connected. In addition, the base 12 can be inserted to improve the bondability. In addition, since the operator can feel a feeling that the power cord 9 is inserted, the operation is further facilitated. In the case where the overall dimensions of the power connection terminal 10 can be made sufficiently large and the insertion distance of the power cord 9 can be sufficiently secured, the operation screw 15 may be arranged at the center position or the front side position of the base 12. good.

  The power connection terminal 10 is provided with various devices for improving the workability of connecting the power cord 9. Hereinafter, the point regarding this workability | operativity improvement is demonstrated.

  First, as shown in FIGS. 7 and 9, the opening 12 a of the base 12 is disposed near the upper surface of the base 12. Therefore, as shown in FIGS. 2 and 3, the opening 12 a of the base 12 is positioned on the outside of the back surface of the alarm device 1 and the opening 12 a is working in a state where the power connection terminal 10 is arranged inside the housing 2. Therefore, the power cord 9 can be inserted more easily.

  As shown in FIGS. 7 and 9, the moving plate 14 and the joint 13 move upward in the figure by turning the operation screw 15, and are joined at a position near the opening 12 a provided at the upper end of the base 12. 13 crimps the power cord 9. Therefore, as shown in FIGS. 2 and 3, when the operation screw 15 is turned in a state where the power connection terminal 10 is disposed inside the housing 2, the moving plate 14 and the joint 13 move to a position that is easy for the operator to see. In addition, since the crimping state of the power cord 9 can be visually confirmed through the opening 12a, the workability is further improved.

  As shown in FIG. 6, a pair of notches 12 c is provided on the upper surface of the base 12. Further, a notch portion 14 a is provided at a position corresponding to the notch portion 12 c on the moving plate 14. As shown in FIG. 11, ribs 2a formed on the housing 2 are engaged with these notches 12c and 14a (in FIG. 11, the ribs 2a are shown only on one side of the power connection terminal 10). Although shown, the ribs 2a are actually engaged on both sides). Therefore, when the operation screw 15 is turned, the movement of the moving plate 14 and the base 12 is restricted by the rib 2a, and the moving plate 14 and the base 12 are stabilized. Therefore, the operation screw 15 is smoothly turned for connection. be able to. That is, the notches 12c and 14a are for preventing the base 12 from shaking, and correspond to the base-side shaking preventing means in the claims.

  As shown in FIGS. 5 and 6, the base 12 is formed with a second opening 12d, and the opening 12d accommodates the rear end of the moving plate 14 so as to be movable up and down. ing. Further, a notch portion 14b is formed in the vicinity of the rear end portion of the moving plate 14, and a part of the base 12 is engaged with the notch portion 14b. Then, while the movable plate 14 moves while maintaining this engaged state, the movement of the movable plate 14 is restricted and the movable plate 14 is stabilized. Therefore, the operation screw 15 can be smoothly turned for connection. it can. That is, the notch portion 14b is for preventing the moving plate 14 from shaking, and corresponds to the moving means side shaking preventing means in the claims.

  Next, the winding preventing part 20 will be described. FIG. 15 is a perspective view of the periphery of the winding stopper 20. As shown in FIGS. 2 and 15, the anti-winding portion 20 is configured by arranging two stoppers 21 substantially in series along the insertion direction. Each stopper 21 is formed in a substantially prismatic shape. In such a configuration, as shown in FIG. 2, the power cord 9 drawn into the connection space is inserted between the stoppers 21, and is wound around the one stopper 21 only approximately once.

  For this reason, even when the power cord 9 receives a load on the lower side of FIG. 2 for some reason, the load is supported by the stopper 21 and is not transmitted to the power connection terminal 10. It is possible to prevent the cord 9 from coming off. In particular, as shown in FIG. 15, since the upper end portions 21a of the stoppers 21 are formed in a wide shape, the upper end portions 21a prevent the power cord 9 from being detached from the stopper 21, and the power cords 9 are further layered. It can be securely wound.

  As described above, according to the first embodiment, the power cord 9 can be connected by simply cutting the power cord 9 into an arbitrary length, inserting the power cord 9 into the power connection terminal 10, and turning the operation screw 15. Therefore, it is possible to eliminate the trouble of peeling off the cord core wire 9b of the power cord 9, and the connection work can be easily performed. Further, since the winding portion of the power cord 9 is not required, the alarm device 1 is made thin. Can be formed. Further, since the crimping force by the operation screw 15 is transmitted inside the movable plate 14, the power cord 9, and the upper surface of the base 12 and is prevented from being transmitted below the base 12, the circuit board 11 is deformed. Can be prevented and the operation can be performed more easily. Further, by forming the opening 12a of the base 12 in a flat shape, the power cord 9 can be deformed into a flat shape, and the joint portion 13 can reliably reach the cord core wire 9b. Further, since the total height of the joint portion 13 is formed to be approximately equal to the diameter D of the power cord 9, the power cord 9 is not excessively crimped by the joint portion 13 and the joining property is improved. Further, since the operation screw 15 is arranged behind the center position of the base 12 in the insertion direction of the power cord 9, the power cord 9 can be more reliably inserted into the base 12 and the joining property is improved. To do. Further, since the opening 12a of the base 12 is disposed in the vicinity of the upper surface of the base 12, the opening 12a is positioned near the outside of the back surface of the alarm device 1, and the power cord 9 can be inserted more easily. Further, since the moving plate 14 and the joining portion 13 are moved upward in the figure by turning the operation screw 15, the moving plate 14 and the joining portion 13 are moved to a position that is easy for the operator to see, and workability is improved. Further improvement. Further, the movement of the moving plate 14 and the base 12 is regulated by the rib 2a by the notch 12c of the base 12, the notch 14a and the notch 14b of the moving plate 14, and the operation screw 15 is smoothly turned. Connection can be made. Furthermore, since the winding prevention part 20 is provided, even when the power cord 9 receives a load on the lower side for some reason, this load is supported by the stopper 21, and the power cord 9 is more reliably secured.

[Embodiment 2]
Next, a second embodiment will be described. The second embodiment is different from the first embodiment in that the notch is not open in that the notch of the base linked to the end of the moving plate is open. Different. However, configurations that are not particularly described are the same as those in the first embodiment, and part of the configuration that is substantially the same as that in the first embodiment is the same name or reference symbol used in the description of the first embodiment. Is attached.

  16 is a perspective view of the power connection terminal, FIG. 17 is a longitudinal sectional view of the power connection terminal, and FIG. 18 is an exploded perspective view of the power connection terminal. As shown in these drawings, the power connection terminal 30 includes a base 31, a joint portion 13, a moving plate 32, and an operation screw 15. Here, as shown in FIG. 18, a notch portion 31 b that is open downward is formed on the rear side surface of the base 31. On the other hand, the rear end portion of the moving plate 32 is formed to have substantially the same width as the cutout portion 31b, and is slidably disposed inside the cutout portion 31b. In such a configuration, when the moving plate 32 is moved by turning the operation screw 15, the rear end of the moving plate 32 slides inside the notch 31b, and the moving plate 32 is moved. Control sway and improve workability.

  As described above, in the second embodiment, in addition to the same effects as in the first embodiment, the notch 31b of the base 31 is formed so as to open the direction, so that the molding of the base 31 is further facilitated. As a result, the assembly of the movable plate 32 to the base 31 becomes easier.

[Embodiment 3]
Next, Embodiment 3 will be described. The third embodiment is different from the first embodiment in which the joint is fixed to the moving plate in that the joint is fixed to the base. However, configurations that are not particularly described are the same as those in the first embodiment, and some of the configurations that are substantially the same as those in the first embodiment are denoted by the same reference numerals as those used in the description of the first embodiment. To do.

  19 is a perspective view of the power connection terminal, FIG. 20 is a longitudinal sectional view of the power connection terminal, and FIG. 21 is an exploded perspective view of the power connection terminal. As shown in these drawings, the power connection terminal 40 includes a base 41, a joint portion 42, a moving plate 43, and an operation screw 15. Here, an opening 41a that is wider than the opening 12a of the first embodiment is formed on the front surface of the base 41, and a joint 42 is integrally formed on the inner edge of the opening 41a. The joint portion 42 is formed as an acute-angled body that extends downward in the base 41. On the other hand, the moving plate 43 is formed in a substantially flat plate shape.

  In such a structure, when the moving plate 43 is moved upward by turning the operation screw 15, the end of the power cord 9 is moved upward by the moving plate 43, and the joint portion 42 is moved to the power cord 9 from above. Crimp. As described above, the joining portion 42 can be formed not on the moving plate 43 but on the base 41, and may be formed not on the upper side but on the lower side.

  As described above, according to the third embodiment, since the joint portion 42 is formed downward on the base 41, the same effect as in the first embodiment can be obtained with a different configuration.

[Embodiment 4]
Next, a fourth embodiment will be described. In the fourth embodiment, a plurality of terminals provided below the base are formed in a bent shape, and a part of the plurality of terminals has a thickness different from that of the other terminals. This is different from the first embodiment, which is formed in a shape and substantially the same thickness. However, configurations that are not particularly described are the same as those in the first embodiment, and some of the configurations that are substantially the same as those in the first embodiment are denoted by the same reference numerals as those used in the description of the first embodiment. To do.

  22 is a perspective view of the power connection terminal, FIG. 23 is a side view of the power connection terminal, and FIG. 24 is a longitudinal sectional view showing the power connection terminal together with the substrate. As shown in these drawings, the power connection terminal 50 includes a base 51, a joint portion 14, a moving plate 14, and an operation screw 15.

  Here, a plurality of terminals 51a to 51d are formed below the base 51. As shown in FIG. 22, the lower ends of the terminals 51a to 51d are bent with respect to the base. More specifically, the lower ends of the terminals 51a to 51d are bent in a predetermined direction (left side of FIGS. 23 and 24) with respect to the base, and form an angle α with respect to the base as shown in FIG. is doing. By thus forming the terminals 51a to 51d in a bent shape, as shown in FIG. 24, when the power connection terminal 50 is placed on the circuit board 11 from the front side (left side in FIG. 24) as viewed from the operator. Even when the upper portion of the power connection terminal 50 is slightly inclined toward the front side, the lower ends of the terminals 51 a to 51 d are substantially orthogonal to the circuit board 11, so that the lower ends are provided on the circuit board 11. It can be easily inserted into a hole (not shown). Therefore, the power connection terminal 50 can be easily connected to the circuit board 11 from the front side, and workability is improved.

  And after inserting the lower end part of the terminals 51a-51d into the circuit board 11 as mentioned above, the base part of the terminals 51a-51d is substantially orthogonal to the circuit board 11 by pressing the power supply connection terminal 50 against the circuit board 11 further. In this state, the terminals 51a to 51d and the circuit board 11 can be joined. However, as long as the bonding strength between the terminals 51a to 51d and the circuit board 11 can be sufficiently secured, only the lower ends of the terminals 51a to 51d are inserted into the holes of the circuit board 11 as shown in FIG. You may join. Furthermore, since the opening 52a faces obliquely upward in a state where the power connection terminal 50 is bonded to the circuit board 11, the power cord 9 can be more easily inserted into the opening 52a.

  The specific value of the angle α at which the terminals 51a to 51d are bent is arbitrary, and can be determined in consideration of the ease of placing the power connection terminal 50, the processing cost, and the like. Further, the positions where the terminals 51a to 51d start to bend (P1 and P2 in FIG. 23) can be arbitrarily determined. In the fourth embodiment, the lower ends of the terminals 51a to 51d are “bent”. However, the terminals 51a to 51d may be curved so that the angle gradually changes from the base to the lower end. In this case, after the lower ends of the terminals 51a to 51d are inserted into the holes, the operation of pressing the power connection terminal 50 against the circuit board 11 can be performed more smoothly. That is, the same effect can be obtained by making the terminals 51a to 51d at least “non-linear”.

  Moreover, in this Embodiment 4, as shown in FIG. 22, among the terminals 51a-51d, the outer diameter of the terminal 51a is made thicker than the outer diameter of the terminals 51b-51d. Correspondingly, in the circuit board 11, among the holes (not shown) into which the terminals 51a to 51d are inserted, the inner diameter of the hole into which the terminal 51a is inserted is made wider than the inner diameter of the other holes. Therefore, when the operator inserts the terminals 51a to 51d into the holes of the circuit board 11, the terminal 51a is prevented from being inserted into other than the predetermined holes, and as a result, the terminals 51a to 51d are placed at predetermined positions with respect to the circuit board 11. It can be reliably arranged. In addition, for example, the cross-sectional shape of the terminal 51a may be changed to a round shape, while the cross-sectional shape of the other terminals 51b to 51d may be changed to a square shape. Further, not only one terminal 51a but also a plurality of terminals may have different shapes. That is, the same effect can be acquired by making at least "different shape" some terminals 51a-51d.

  As described above, according to the fourth embodiment, in addition to the same effects as those of the first embodiment, since the terminals 51a to 51d are bent, the terminals 51a to 51d are provided in the circuit board 11 with holes (not shown). It can be easily inserted into the part, improving workability. Further, since only a part of the terminals 51a to 51d is thickened, the terminals 51a to 51d can be reliably arranged at predetermined positions with respect to the circuit board 11. Moreover, since the opening 52a of the power connection terminal 50 faces obliquely upward, the power cord 9 can be more easily inserted into the opening 52a.

[Embodiment 5]
Next, a fifth embodiment will be described. The fifth embodiment is different from the third embodiment in which no guide is provided in that a guide is provided below the moving plate. However, the configuration that is not particularly described is the same as that of the third embodiment, and a part of the configuration that is substantially the same as that of the third embodiment is denoted by the same symbol as that used in the description of the third embodiment. To do.

  FIG. 25 is a perspective view of the power connection terminal. As shown in FIG. 25, the power connection terminal 60 includes a base 41, a joint portion 42, a moving plate 43, an operation screw 15, and a moving guide 61. This movement guide 61 corresponds to the movement restricting means in the claims, and is formed in a substantially upward U-shape and extends downward from the upper surface of the base 41. A moving plate 43 is arranged inside the moving guide 61. Here, the height of the lower portion of the movement guide 61 is determined so as to substantially correspond to the height of the movement plate 43 in a state where the movement plate 43 is disposed at the lower end of the operation screw 15.

  In such a configuration, when the operator operates the operation screw 15 in a direction to move the moving plate 43 downward, for example, when the joined power cord 9 is removed for some reason, the lower end of the operation screw 15 When the moving plate 43 is moved, the downward movement of the moving plate 43 is restricted by the moving guide 61. Accordingly, it is possible to prevent the moving plate 61 from dropping from the operation screw 15, so that it is not necessary to pay excessive attention to the operation of the operation screw 15 and the operability is improved.

  As described above, according to the fifth embodiment, in addition to the same effects as those of the third embodiment, since the movement guide 61 is provided, it is possible to prevent the movement plate 61 from falling off the operation screw 15 and Improves.

[Embodiment 6]
Next, a sixth embodiment will be described. The sixth embodiment is different from the first embodiment in which the moving plate is moved upward and the joint is disposed downward in that the movable plate is moved downward, the joint is disposed upward, and the like. . However, configurations that are not particularly described are the same as those in the first embodiment, and some of the configurations that are substantially the same as those in the first embodiment are denoted by the same reference numerals as those used in the description of the first embodiment. To do.

  FIG. 26 is a perspective view of the power connection terminal, and FIG. 27 is a longitudinal sectional view of the power connection terminal. As shown in these drawings, the power connection terminal 70 includes a base 71, a joint portion 72, a moving plate 73, a spring 74, and an operation screw 15.

  Among these, openings 71 a are formed on both front and rear sides of the base 71. And the junction part 72 is integrally formed in the downward inner edge of this opening part 71a. Here, the joining portion 72 is formed as an acute-angled body facing upward as shown in the figure. On the other hand, as shown in FIG. 27, the moving plate 73 includes an upper plate 73a and a lower plate 73b, and is formed in a substantially U-shape as a whole. The lower plate 73 b of the moving plate 73 is inserted through the opening 71 a of the base 71. The upper plate 73 a of the moving plate 73 extends above the base 71, and a spring 74 is interposed between the upper plate 73 and the base 71. The upper plate 73a is constantly pressed upward by the spring 74. Further, the operation screw 15 passes through a hole portion (not shown) of the upper plate 73 and a spring 74 in order, and is screwed into a screw hole (not shown) provided in the base 71. The operation screw 15 and the spring 74 cooperate to move the moving plate 73, and correspond to the operation means in the claims.

  In such a configuration, after the end of the power cord 9 is inserted into the opening 71a on the front side, the operating screw 15 is turned to move the moving plate 73 downward against the pressing force of the spring 74. . Then, the power cord 9 is pressure-bonded to the joining portion 72 by the moving plate 73 and joined. Thus, the moving plate 73 may be moved downward instead of upward.

  As described above, according to the sixth embodiment, in addition to substantially the same effects as those of the first embodiment, the moving plate 73 is formed in a U-shape, and both the upper plate 73a and the lower plate 73b are connected to the operation screw 15. Therefore, the moving plate 73 is supported at two upper and lower points and stably moved, and the moving plate 73 can be prevented from falling off the operation screw 15.

[Embodiment 7]
Next, a seventh embodiment will be described. The seventh embodiment is different from the first embodiment in which an operating screw is used as the operating means in that the operating screw is omitted while the spring is used as the operating means. However, configurations that are not particularly described are the same as those in the first embodiment, and some of the configurations that are substantially the same as those in the first embodiment are denoted by the same reference numerals as those used in the description of the first embodiment. To do.

  FIG. 28 is a perspective view of the power connection terminal, and FIG. 29 is a side view of the power connection terminal. As shown in these drawings, the power connection terminal 80 includes a base 81, a joint portion 84, a moving plate 85, a spring 86, and an operation rod 87.

  Among these, the joining portion 84 and the moving plate 85 are formed substantially integrally with each other, and are formed in a substantially upward L-shape as a whole. Here, a joint receiving portion 81b is formed at a position corresponding to the joint portion 84 in the base 81, and the power cord 9 can be sandwiched between the joint portion 84 and the joint receiving portion 81b. . A spring 86 is interposed between the moving plate 85 and the lower part of the base 81, and the moving plate 85 is supported by the spring 86 while being always pressed upward. The operating rod 87 moves the moving plate 85 and corresponds to the operating means in the claims. The operating rod 87 is a rod-like body that penetrates the upper portion of the base 81 and reaches the moving plate 85, and is fixed to the moving plate 85.

  In such a configuration, when the operating rod 87 is pushed down, the moving plate 85 is pushed down against the pressing force of the spring 86, and the interval between the joint portion 84 and the joint receiving portion 81b is secured. While maintaining this state, when the end portion of the power cord 9 is inserted between the joint portion 84 and the joint receiving portion 81b through the opening portion 81a and the pressing of the operation rod 87 is released, the movable plate 85 is moved to the spring. The power cord 9 is automatically moved upward by the pressing force of 86, and the power cord 9 is sandwiched between the joint portion 84 and the joint receiving portion 81b.

  As described above, according to the seventh embodiment, in addition to the effects substantially the same as those in the first embodiment, the operation plate 87 is operated using the operation rod 87 instead of the operation screw. Thus, the power cord 9 can be connected simply by pressing the operating rod 87.

[Embodiment 8]
Next, an eighth embodiment will be described. The eighth embodiment differs from the seventh embodiment in which the joint is provided integrally with the moving plate in that the joint is provided on the base. However, configurations that are not particularly described are the same as those in the seventh embodiment, and some of the configurations that are substantially the same as those in the seventh embodiment are denoted by the same reference numerals as those used in the description of the seventh embodiment. To do.

  30 is a perspective view of the power connection terminal, and FIG. 31 is a side view of the power connection terminal. As shown in these drawings, the power connection terminal 90 includes a base 91, a joint portion 92, a moving plate 93, a spring 86, and an operation rod 87.

  Among these, the base 91 is connected to the circuit board 11 (not shown), and a joint 92 is integrally formed at the inner edge of the opening 91a. The joint portion 92 is formed as a downward-pointing acute angle body. Further, the moving plate 93 is disposed so as to slightly protrude from the inside of the base 91 to the outside of the base 91 through the opening 91a.

  In such a configuration, when the operating rod 87 is pushed down, the moving plate 93 is pushed down against the pressing force of the spring 86, and the distance between the moving plate 93 and the joint 92 is ensured. While maintaining this state, the end of the power cord 9 is inserted between the moving plate 93 and the joint 92 through the opening 91a. When the pressing of the operating rod 87 is released, the moving plate 93 is automatically moved upward by the pressing force of the spring 86, and the power cord 9 is sandwiched between the moving plate 93 and the joint 92.

  As described above, according to the eighth embodiment, in addition to substantially the same effects as those of the seventh embodiment, the operation plate 87 is operated using the operation rod 87 instead of the operation screw. Thus, the power cord 9 can be connected simply by pressing the operating rod 87.

[Embodiment 9]
Next, Embodiment 9 will be described. The ninth embodiment is different from the eighth embodiment in which no resistance adding means is provided in that a resistance adding means for enhancing the insertion feeling when the power cord 9 is inserted is provided. However, unless otherwise specified, the configuration is the same as that of the eighth embodiment, and a part of the configuration substantially the same as that of the eighth embodiment is denoted by the same reference numerals as those used in the description of the eighth embodiment. To do.

  FIG. 32 is a side view of the power connection terminal in a state before connection, and FIG. 33 is a side view of the power connection terminal in a state after connection. As shown in these drawings, the power connection terminal 100 includes a base 91, a joint portion 92, a moving plate 93, a spring 86, an operation rod 87, and a click portion 88.

  Among these, the click part 88 is for giving an operator a feeling of insertion when the power cord 9 is inserted, and corresponds to the resistance adding means in the claims. Specifically, the click portion 88 includes a pressed body 91 a connected to the upper surface of the base 91 and a protrusion 93 a formed on the upper surface of the moving plate 93. Among these, the pressed body 91 a is rotatably supported on the upper surface of the base 91, and is rotated toward the operation rod 87 by being pressed by the tip of the power cord 9. Further, the protrusion 93a is formed at a position and height such that the pressed body 91a is engaged with the tip of the pressed body 91a in the state shown in FIG.

  In such a configuration, when the operating rod 87 is pushed down, the moving plate 93 is pushed down against the pressing force of the spring 86, and the distance between the moving plate 93 and the joint 92 is ensured. If the end of the power cord 9 is inserted between the moving plate 93 and the joint 92 through the opening 91a while maintaining this state, the pressed body 91a is pressed by the tip of the power cord 9. . At this time, since the protrusion 93 a is locked to the tip of the pressed body 91 a, the rotation of the pressed body 91 a is restricted, and pressure is transmitted to the operator via the power cord 9. When the operator further depresses the power cord 9 against this pressure, the tip of the pressed body 91a rotates over the protrusion 93a, and the state shown in FIG. 33 is obtained. In this state, when the operator releases the pressing of the operating rod 87, the moving plate 93 is automatically moved upward by the pressing force of the spring 86, and the power cord 9 is held between the moving plate 93 and the joint 92. Is done.

  As described above, according to the ninth embodiment, in addition to the same effects as those of the eighth embodiment, the click portion 88 can give the operator a feeling of inserting the power cord 9 and improve workability. .

[Embodiment 10]
Next, Embodiment 10 will be described. The tenth embodiment differs from the first embodiment in which an operating screw is used in that a reversing spring is used as the operating means. However, configurations that are not particularly described are the same as those in the first embodiment, and some of the configurations that are substantially the same as those in the first embodiment are denoted by the same reference numerals as those used in the description of the first embodiment. To do.

  34 is a perspective view of the power connection terminal in a state before connection, FIG. 35 is a side view of the power connection terminal in FIG. 34, and FIG. 36 is a side view of the power connection terminal in a state after connection. As shown in these drawings, the power connection terminal 110 includes a base 111, a reversing spring 112, and a joint 113.

  Among them, the reversing spring 112 is adapted to crimp at least one of the joint portion 113 and the power cord 9 to the other by being moved with respect to the base 111, and corresponds to the moving means in the claims. To do. The reversing spring 112 moves the reversing spring 112 itself, which is a moving means, and corresponds to the operating means in the claims. In other words, the reversing spring 112 functions as both a moving means and an operating means. Specifically, the reversing spring 112 is a substantially hollow hemispherical elastic body, and is integrally formed on the upper surface of the base 111. As shown in FIGS. 34 and 35, the reversing spring 112 has an initial state in which the reversing spring 112 projects upward from the upper surface of the base 111, and is reversed by being pressed from above. It reverses to the state which protruded below.

  The joint 113 is formed integrally with the inner surface of the reversing spring 112 and is formed in a needle shape that protrudes downward. When the reversing spring 112 is in the initial state, the joint 113 is disposed at a position where the tip does not protrude so much downward from the upper surface of the base 111, and accordingly, below the joint 113. A space is formed, and the power cord 9 can be inserted into this space. On the other hand, in the state where the reversing spring 112 is reversed, the joint 113 is moved to a position where the tip protrudes downward from the upper surface of the base 111 and penetrates the power cord 9.

  In such a configuration, after the reversing spring 112 is in an initial state and the power cord 9 is inserted through the opening 111a, the reversing spring 112 is pressed from above to be reversed so that the joint 113 is pressure-bonded to the power cord 9. be able to.

  As described above, according to the tenth embodiment, in addition to the same effects as those of the first embodiment, since the moving means and the operating means are also used by the reversing spring 112, the power cord 9 can be connected with an extremely simple configuration. It can be carried out.

[Embodiment 11]
Next, Embodiment 11 will be described. The eleventh embodiment is different from the first embodiment in which the moving plate is configured as a flat plate having no elastic force in that the moving plate is configured as a plate spring having elastic force. However, configurations that are not particularly described are the same as those in the first embodiment, and some of the configurations that are substantially the same as those in the first embodiment are denoted by the same reference numerals as those used in the description of the first embodiment. To do.

  FIG. 37 is a perspective view of the power connection terminal. As shown in FIG. 37, the power connection terminal 120 includes a base 121, a joint portion 122, a leaf spring 123, and an operation rod 124. Among these, the base 121 is connected to the circuit board 11 (not shown). An opening 121a is formed in the base 121, and a joint 122 is integrally formed on the upper edge of the opening 121a.

  Moreover, the leaf | plate spring 123 is crimped | bonded to at least one of the junction part 122 and the power cord 9 with respect to the other by moving with respect to the base 121, and respond | corresponds to the moving means in a claim. The plate spring 123 is configured by integrally including an upper plate 123a and a lower plate 123b, and an end portion of the upper plate 123a extends into the opening 121a. The plate spring 123 has an elastic force in a direction in which the upper plate 123a and the lower plate 123b are separated from each other, and joins the end of the upper plate 123a in an initial state where there is no pressing force from the operation rod 124. It is substantially pressed against the portion 122. The operation rod 124 is for operating the leaf spring 123 and corresponds to the operation means in the claims. The operation rod 124 is linked to the upper plate 123a of the leaf spring 123, and allows the upper plate 123a to be pressed downward.

  In such a configuration, when the operating rod 124 is pushed downward against the elastic force of the leaf spring 123, the upper plate 123a moves downward, and a space is created between the upper plate 123a and the joint 122. . Then, when the end of the power cord 9 is inserted into this space and the leaf spring 123 is opened by releasing the operation rod 124, the upper plate 123a moves in a direction to be pressed against the joint 122, and the power cord 9 is joined. Crimped to the portion 122.

  Thus, according to the eleventh embodiment, in addition to the same effects as in the first embodiment, the leaf spring 123 is operated using the operation rod 124 instead of the operation screw. The power cord 9 can be connected simply by pressing the operating rod 124.

[Embodiment 12]
Next, an embodiment 12 will be described. In the twelfth embodiment, the moving plate is arranged separately from the base and has no elastic force in that the moving plate is pivotally supported by the base and is given an elastic force by a spiral spring. It differs from Embodiment 1 comprised in this. However, configurations that are not particularly described are the same as those in the first embodiment, and some of the configurations that are substantially the same as those in the first embodiment are denoted by the same reference numerals as those used in the description of the first embodiment. To do.

  FIG. 38 is a perspective view of the power connection terminal. As shown in FIG. 38, the power connection terminal 130 includes a base 131, a moving plate 132, a joint portion 133, a spiral spring 134, and an operation rod 135. The base 131 is connected to a circuit board 11 (not shown), is formed in a flat table shape, and a moving plate 132 is disposed on the top. The moving plate 132 is moved with respect to the base 131 so that at least one of the joint portion 133 and the power cord 9 is crimped to the other, and corresponds to the moving means in the claims. The moving plate 132 is formed in a flat plate shape, and is pivotally supported by the base 131 at the rear end thereof. Further, a joint portion 133 is formed integrally with the front end portion of the moving plate 132.

  A spiral spring 134 is disposed between the moving plate 132 and the base 131. The spiral spring 134 has an elastic force in a direction in which the moving plate 132 is pressed against the base 131, and substantially presses the joint portion 133 against the base 131 in an initial state where the lifting force from the operation rod 135 is not received. The operation rod 135 is for operating the moving plate 132 and corresponds to the operation means in the claims. The operating rod 135 is linked to the moving plate 132 and can lift the moving plate 132 upward.

  In such a configuration, when the operating rod 135 is lifted upward against the elastic force of the spiral spring 134, the moving plate 132 moves upward, and a space is generated between the joint portion 133 and the base 131. When the end portion of the power cord 9 is inserted into this space and the movable plate 132 is opened by opening the operation rod 135, the joint 133 moves in a direction to be pressed against the base 131, and the power cord 9 is joined. Crimped to 133.

  Thus, according to the twelfth embodiment, in addition to the same effects as those of the first embodiment, the operation plate 135 is operated using the operation rod 135 instead of the operation screw. The power cord 9 can be connected simply by pressing the operating rod 135.

[Embodiment 13]
Next, Embodiment 13 will be described. The thirteenth embodiment is different from the first embodiment that does not have such an engagement structure in that it has an engagement structure in which the movable plate and the base are engaged with each other. Further, the cross-sectional shape of the joint portion of the thirteenth embodiment is different from that of the first embodiment. However, configurations that are not particularly described are the same as those in the first embodiment, and some of the configurations that are substantially the same as those in the first embodiment are denoted by the same reference numerals as those used in the description of the first embodiment. To do.

  FIG. 39 is a perspective view of the power connection terminal in a state before connection, and FIG. 40 is a perspective view of the power connection terminal in a state after connection (however, the power cord 9 is omitted). As shown in these drawings, the power connection terminal 140 includes a base 141, a joint 142, and a moving plate 143.

  Among these, the base 141 is connected to the circuit board 11 (not shown), and is formed in a substantially hollow rectangular shape with the top and sides open. A first protrusion 141 b for engaging with the moving plate 143 is formed on the upper edge of the front side surface of the base 141. Further, the moving plate 143 presses at least one of the joint portion 142 and the power cord 9 against the other, and corresponds to the moving means in the claims. Further, the moving plate 143 also functions as an operating means for operating the moving plate 143 itself that is a moving means. That is, the moving plate 143 serves as a moving means and an operating means. The moving plate 143 is formed in a flat plate shape, and is pivotally supported on the rear side surface of the base 141 at the rear end thereof. A second protrusion 143 a for engaging with the base 141 is formed at the front end of the moving plate 143. The second protrusion 143a engages and disengages the first protrusion 141b.

  A joining portion 142 is integrally formed in a downward state at a substantially central position before and after the lower surface of the moving plate 143. The joint 142 is close to the upper surface of the base 141 in a state where the moving plate 143 moves downward as shown in FIG.

  In such a configuration, in the initial state where the engagement state between the first protrusion 141b and the second protrusion 143a is released, the joint 142 is located at a position above the base 141, and both A space is formed between them. When the end of the power cord 9 is inserted into the space 141 and the moving plate 143 is pushed downward, the first projecting portion 141b and the second projecting portion 143a are engaged with each other, and the moving plate 143 is engaged. Is fixed. Further, since the joint 142 comes close to the base 141 along with this movement, the joint 142 is pressure-bonded to the power cord 9.

  As described above, according to the thirteenth embodiment, in addition to the same effects as those of the first embodiment, the moving plate 143 serves as both the moving means and the operating means, and the first protrusion 141b and the second protrusion. Since the moving plate 143 can be fixed by engaging with the 143a, the operation can be performed only by pushing the moving plate 143 itself, and the power cord 9 can be connected without using a tool such as a screwdriver.

[Embodiment 14]
Next, a fourteenth embodiment will be described. This Embodiment 14 differs from the configuration of Embodiment 6 shown in FIG. 26 in that one of the pair of joints is used as a cutting means for cutting the power cord. However, the configuration that is not particularly described is the same as that of the sixth embodiment, and a part of the configuration that is substantially the same as that of the sixth embodiment is denoted by the same symbol as that used in the description of the sixth embodiment. To do.

  FIG. 41 is a perspective view of the power connection terminal, and FIG. 42 is a perspective view of the power connection terminal in a state where the power cord is inserted. As shown in these drawings, the power connection terminal 150 includes a base 71, a joint portion 72, a moving plate 73, a spring 74 (not shown), an operation screw 15, and a cutting portion 151.

  Of the openings 71a formed on both front and rear side surfaces of the base 71, a joint 72 is formed in the front opening 71a as in the sixth embodiment. On the other hand, a cutting portion 151 is formed in the rear opening 71a. The cutting portion 151 is for cutting the power cord 9 and corresponds to the cutting means in the claims. The cutting portion 151 is formed in an upwardly acute angle shape, and its upper end is disposed so as to be substantially in contact with the lower surface of the lower plate 73b of the moving plate 73 when the moving plate 73 is moved to the lowest position. ing.

  In such a configuration, after the end of the power cord 9 is inserted into the opening 71a on the front side, the operating screw 15 is turned to move the moving plate 73 downward against the pressing force of the spring 74. . Then, the power cord 9 is pressure-bonded to the joining portion 72 by the moving plate 73 and joined. At the same time, the front end portion of the power cord 9 is cut by the cutting portion 151.

  As described above, according to the fourteenth embodiment, the front end portion of the power cord 9 is automatically cut in addition to the substantially same effect as that of the sixth embodiment. There is no need to adjust the connection, and the connection work becomes easier.

[Embodiment 15]
Next, an embodiment 15 will be described. The fifteenth embodiment has a different bonding structure from the configuration of the first embodiment. However, configurations that are not particularly described are the same as those in the first embodiment, and some of the configurations that are substantially the same as those in the first embodiment are denoted by the same reference numerals as those used in the description of the first embodiment. To do.

  43 is a longitudinal sectional view of the power connection terminal, FIG. 44 is an enlarged perspective view of the periphery of the joint, FIG. 45 is a front view of the periphery of the joint, and FIG. 46 is a front view of the periphery of the joint in the state after connection. It is. As shown in these figures, the power connection terminal 160 includes a base 12, a moving plate 15, an operation screw 15, a joint portion 161, and a push-in portion 162. Among these, the joint 161 is configured by continuously including a first recess 161a and a second recess 161b. Moreover, the pushing part 162 is provided with the pushing protrusion 162a. Here, if the width of the first recess 161a is W1, the width of the second recess 161b is W2, the outer diameter of the power cord 9 is D1, and the outer diameter of the cord core 9b is D2, D2 ≦ W2 <D1 ≦ W1 It is determined as follows. Further, the pushing protrusion 162a is formed in a shape substantially corresponding to the first recess 161a.

  In such a configuration, after the end of the power cord 9 is inserted into the opening 12a on the front side and the first recess 161a, the operating plate 15 is turned to move the moving plate 14 upward. Then, when the power cord 9 comes into contact with the pushing projection 162a, the pushing cord 162a pushes the power cord 9 into the second recess 161b. At this time, since the width W2 of the second recess 161b is smaller than the outer diameter of the power cord 9 by D1, the pressing is performed while the covering 9a of the power cord 9 is peeled off. As a result, as shown in FIG. 46, the coating 9a is peeled off, only the cord core wire 9b is pushed into the second recess 161b, and the cord core wire 9b and the second recess 161b come into contact with each other, thereby conducting Is secured.

  As described above, according to the fifteenth embodiment, in addition to the effects substantially the same as those of the first embodiment, conduction is performed by pushing only the cord core wire 9b into the second recess 161b. Compared with the case of piercing the core wire 9b, damage to the cord core wire 9b is reduced, and the bondability is further improved.

[Embodiment 16]
Next, an embodiment 16 will be described. In the sixteenth embodiment, the power cord 9 is manually pushed with respect to the configuration of the fifteenth embodiment. However, configurations that are not particularly described are the same as those in the fifteenth embodiment, and parts of the components that are substantially the same as those in the fifteenth embodiment are denoted by the same reference numerals as those used in the description of the fifteenth embodiment. To do.

  47 is a perspective view of the power supply connection terminal, and FIG. 48 is a perspective view of the power supply connection terminal in a state after connection. As shown in these drawings, the power connection terminal 170 includes a base 171 and a joint portion 161. Here, as in the fifteenth embodiment, the first concave portion 161a and the second concave portion 161b are continuously formed in the joint portion 161. A push jig 174 is used for connection using the power connection terminal 170. The pushing jig 174 is configured by integrally forming a handle 176 on the pushing protrusion 162a.

  In such a configuration, after placing the end portion of the power cord 9 in the first recess 161a, the operator pushes the power cord 9 into the second recess 161b by the pushing protrusion 162a of the pushing jig 174. At this time, pressing is performed while the covering 9a (not shown) of the power cord 9 is peeled off, and as shown in FIG. 48, only the cord core 9b is pushed into the second recess 161b, and the cord core 9b and the first The two recesses 161b come into contact with each other, so that conduction is ensured. Thereafter, in order to prevent the cord core wire 9b from inadvertently contacting other parts and causing a short circuit or the like, the second recess 161b may be covered with an arbitrary insulator. Alternatively, the pushing jig 174 is made of an insulator, and the pushing cord 174 is fixed to the base 171 by an arbitrary method in a state where the power cord 9 is pushed into the second recess 161b to perform insulation. Also good.

  As described above, according to the sixteenth embodiment, in addition to substantially the same effects as those of the fifteenth embodiment, the power cord 9 is pushed by the pushing jig 174. And the power connection terminal 170 can be configured more simply.

[Embodiment 17]
Next, an embodiment 17 will be described. In the seventeenth embodiment, a description will be given of another form of a wind-stop portion for winding the power cord 9 so that it cannot be pulled out. The anti-winding portion of the seventeenth embodiment is different from the anti-winding portion of the first embodiment in which the stopper is formed in a substantially columnar shape in that the stopper is formed in a substantially trapezoidal shape. However, configurations that are not particularly described are the same as those in the first embodiment, and some of the configurations that are substantially the same as those in the first embodiment are denoted by the same reference numerals as those used in the description of the first embodiment. To do.

  FIG. 49 is a perspective view of the winding stopper, and FIG. 50 is a longitudinal sectional view showing the winding stopper together with the power cord 9. As shown in each of these drawings, the winding stopper 180 is configured by arranging a plurality of stoppers 181 substantially in series in the front-rear direction. Each stopper 181 is formed in a substantially trapezoidal shape, and a winding space portion 182 formed between these stoppers 181 is also formed in a substantially trapezoidal shape. Here, as shown in FIG. 50, the upper width W1 and the lower width W2 of the anti-winding space portion 182 have a lower width W2 <diameter D <upper width W1 with respect to the diameter D of the power cord 9. It is decided to become.

  In such a configuration, the power cord 9 drawn into the casing 2 (not shown) is passed through the winding space 182 between the stoppers 181 (this path is indicated by an imaginary line in FIG. 49), and the power cord 9 50 is pressed downward, the power cord 9 is sandwiched between the stoppers 181 as shown in FIG. 50, and is automatically fixed.

  Thus, according to the seventeenth embodiment, in addition to the effects of the first embodiment, the power cord 9 can be automatically fixed to the stopper 181 simply by pressing the power cord 9 downward, and the power cord 9 can be more easily prevented from being wound. Become.

[III] Modifications to Embodiments Each example of the present invention has been described above, but the specific configuration and method of the present invention are within the scope of the technical idea of each invention described in the claims. Any modification and improvement can be made. Hereinafter, such a modification will be described.

(Interrelationship between each embodiment)
First, the features shown in the above embodiments can be applied to other embodiments. For example, the terminal shape shown in FIG. 22 can be applied to the terminal of FIG. FIG. 2 shows a state in which two power connection terminals are connected, but they can be used alone or three or more power connection terminals can be connected. In particular, in the case where a plurality of units are connected, a common base can be used, and a plurality of moving plates and operation screws can be provided for one base.

(About joining means)
As described above, the number of joining means is arbitrary, and a plurality of joining means may be provided. In addition, the formation direction may be provided from the top to the bottom, or may be provided from the bottom to the top. Further, a joint receiving means that opposes the joint means may be provided, and the power cord 9 may be held between them. Further, the shape of the joint is not limited to the above-described one, and for example, the shape of the longitudinal section may be a multi-stage acute angle shape.

(About moving means and operating means)
As shown in the tenth embodiment, there may be provided means that functions as both the moving means and the operating means. Alternatively, as shown in the sixteenth embodiment, the functions of the moving means and the operating means may be provided to the operator. Therefore, the configuration of the power connection terminal may be simplified.

(Conductivity)
In addition, each part of the power connection terminal can be composed of a conductive member, but only the part necessary for power supply is made conductive, and the other parts are insulated as necessary. Can be applied.

(About problems to be solved and effects of the invention)
In addition, the problems to be solved by the present invention and the effects of the invention are not limited to the above contents, and the present invention solves problems not described above or effects not described above. In some cases, only a part of the described problems can be solved, or only a part of the described effects can be achieved. For example, even when it is necessary to slightly peel off the covering of the power cord, the object of the present invention is achieved as long as the workability at the time of connecting the power cord is improved even slightly.

  In addition, the structural examples shown in the document and drawings, the dimensional relationship and positional relationship of each part, the thickness, etc. are merely examples, and can be arbitrarily changed unless otherwise specified.

(Appendix 1)
The power supply connection terminal according to appendix 1 is a power supply connection terminal for connecting a power cord to a circuit board housed in a housing of an electrical device, the base connected to the circuit board, and the base And a joining means that breaks the coating of the power cord and reaches the cord core wire by being crimped to the power cord inserted into the power cord.

(Appendix 2)
The power supply connection terminal according to attachment 2 is moved in such a manner that at least one of the joining means and the power cord is crimped to the other when moved relative to the base in the power supply connection terminal according to attachment 1. Means and operating means for moving the moving means.

(Appendix 3)
The power connection terminal described in Appendix 3 is the power connection terminal described in Appendix 1 or 2, wherein the base is provided with a terminal connected to the circuit board, and the terminal is formed in a non-linear shape. It is characterized by that.

(Appendix 4)
Further, the power supply connection terminal according to attachment 4 is the power supply connection terminal according to any one of attachments 1 to 3, wherein the base is provided with a plurality of terminals connected to the circuit board. The shape of at least a part of the plurality of end portions is different from the other end portions.

(Appendix 5)
Further, the power supply connection terminal according to appendix 5 is the power connection terminal according to any one of appendices 1 to 4, wherein the base is oscillated by engaging with the housing. The present invention is characterized in that a base side anti-sway means for preventing the above is provided.

(Appendix 6)
The power connection terminal according to appendix 6 is the power connection terminal according to any one of appendices 1 to 5, wherein the base is provided with an opening for inserting the power cord, and the opening The above-mentioned joining means is provided on the inner edge.

(Appendix 7)
Further, the power supply connection terminal according to appendix 7 is the power supply connection terminal according to any one of appendices 1 to 6, wherein a joint receiving means is provided at a position corresponding to the joint means in the base. The power cord can be freely crimped between the joint receiving means and the joint receiving means.

(Appendix 8)
Further, the power connection terminal according to appendix 8 is the power connection terminal according to any one of appendices 2 to 7, wherein the moving means is connected to the power cord inserted through the base. It is characterized by comprising a screw or a spring for moving the frame up and down.

(Appendix 9)
Further, the power connection terminal according to appendix 9 is the power connection terminal according to any one of appendices 2 to 8, wherein the moving means is located behind the center position of the base in the insertion direction of the power cord. It is characterized by having been arranged in.

(Appendix 10)
Further, the power connection terminal described in appendix 10 is the power connection terminal according to any one of appendices 2 to 9, wherein the moving means engages with the casing or the base, thereby moving the power connection terminal. The present invention is characterized in that moving means side anti-shake means for preventing the means from shaking is provided.

(Appendix 11)
Further, the power connection terminal according to attachment 11 is the power connection terminal according to any one of attachments 2 to 10, wherein an opening for inserting the power cord is provided at a position near the upper end of the base. The operating means moves the moving means toward the vicinity of the opening.

(Appendix 12)
Further, the power connection terminal according to appendix 12 is the power connection terminal according to any one of appendices 2 to 11, wherein the moving means is formed as a reversing spring, and the joint portion is connected to the reversing portion of the reversing spring. It is characterized by arranging.

(Appendix 13)
Further, the power connection terminal described in Supplementary Note 13 is characterized in that in the power connection terminal described in any one of Supplementary Notes 2 to 12, a movement restricting means for restricting movement of the moving means is provided. .

(Appendix 14)
Further, the power supply connection terminal according to attachment 14 is the power supply connection terminal according to any one of attachments 1 to 13, wherein the power supply cord inserted through the base is opposite to the insertion direction of the power supply cord. It is characterized by comprising resistance adding means for applying a predetermined pressure in the direction.

(Appendix 15)
The power supply connection terminal according to attachment 15 is the power supply connection terminal according to any one of attachments 1 to 14, wherein the base is provided with a first protrusion, and the moving means has a second protrusion. The first protrusion and the second protrusion are freely engageable with each other.

(Appendix 16)
Further, the power supply connection terminal according to attachment 16 is the power supply connection terminal according to any one of attachments 1 to 15, wherein the power supply cord is cut by being crimped to the power supply cord inserted through the base. A cutting means is provided.

(Appendix 17)
The power cord adjustment guide described in appendix 17 is a guide for adjusting the length of the power cord that is provided outside the casing of the electric device and is inserted into the casing. Guide means for displaying a length substantially the same as that of the power cord housed inside is provided.

(Appendix 18)
The power cord locking structure described in appendix 18 is a structure for locking the power cord that is provided inside the housing of the electrical device and is inserted through the housing, and includes a plurality of columnar stoppers. Are arranged in series substantially along the insertion direction of the power cord.

  According to the power supply connection terminal according to the appendix, the power cord can be connected by simply cutting the power cord to an arbitrary length, inserting it into the power connection terminal, and turning the operation screw. The trouble of stripping the cord core wire can be omitted, and the connection work can be easily performed. Moreover, since the winding part of a power cord becomes unnecessary, an alarm device can be formed thinly.

  In addition, according to the power cord adjustment guide according to the appendix, the length of the power cord to be accommodated in the housing can be grasped only by placing the power cord along the guide means. For example, the length of the power cord can be easily adjusted by cutting the power cord.

  Further, according to the power cord locking structure according to the appendix, the power cord can be wound around the stopper, so even when the power cord receives a tensile load for some reason, this load is supported by the stopper, The power cord is more reliably secured.

DESCRIPTION OF SYMBOLS 1 Alarm 2 Case 3 Smoke inlet 4 Gas inlet 5 Locking part 6 Front cover 7 Back cover 9 Power cord 10, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130 , 140, 150, 160, 170 Power connection terminal 11 Circuit board 12, 31, 41, 51, 71, 81, 91, 111, 121, 131, 141, 161, 171 Base 13, 42, 72, 84, 92, 113, 122, 133, 142, 161 Joint portion 14, 32, 43, 73, 85, 93, 132, 143 Moving plate 15 Operation screw 20, 180 Unwinding portion 21, 181 Stopper 61 Moving guide 74, 86 Spring 87, 124, 135 Operation rod 88 Click part 112 Reversing spring 123 Leaf spring 134 Spiral spring 151 Cutting part

Claims (5)

An adjustment for adjusting the length of the power cord that is inserted from the outside to the inside of the housing of the electrical equipment and that is connected to the power connection terminal provided in the connection space inside the housing. A guide,
The guide means is provided on an outer surface of the housing, and displays a length substantially equal to a length of the power cord that is drawn into the connection space and reaches the power connection terminal;
An adjustment guide featuring. The guide means is a pair of adjustment marks arranged at an interval substantially equal to the length of the power cord that is drawn into the connection space and reaches the power connection terminal;
The adjustment guide according to claim 1. The guide means is provided on the rear surface of the housing;
The adjustment guide according to claim 1, wherein: The guide means is provided on a side surface of the housing;
The adjustment guide according to claim 1, wherein: The electrical device is an alarm;
The adjustment guide according to any one of claims 1 to 4, characterized by:

Images