JPH1012079A - Switch equipped with indicator lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switch equipped with an indicator lamp of which assembly is carried out automatically by making it easy to connect an electric circuit to light the indicator lamp with a contact part. SOLUTION: An electric current detection block 40 is constituted by mounting electronic parts such as diode bridges on a substrate block 43 produced by simultaneously uniting a block main body 41 of synthetic resin and a conductor plate 42. The current detection block 40 is provided with a lead part 48 produced by forming an exposed part of the conductor plate 42 from the block main body 41 into a cylindrical shape. Electric connection of the electric current detection block 40 with a terminal plate 31 and also with a connection plate 33 is carried out by inserting the lead part 48 into a connection hole 31b of a connection piece 31a formed in the terminal plate 31 and a connection hole 33d of a connection piece 33c formed in the connection plate 33.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch with an indicator light which is mounted on a body together with a mechanism for opening and closing the contact, the indicator light being turned on when the contacts are turned on and energized.

[0002]

2. Description of the Related Art Conventionally, there have been provided various switches with a built-in indicator light which are illuminated when a contact is turned on and energized. This type of switch with an indicator light is provided with a current detecting element for detecting an energized current and outputting a voltage, and the indicator light is turned on when the output voltage of the current detecting element exceeds a predetermined voltage. Therefore, it is necessary to electrically connect the contact to the current detection element and the indicator lamp. Current detection elements and indicator lights are currently mounted on printed circuit boards.Current detection elements and display lights are electrically connected between the printed circuit board and contacts using lead wires made of insulated wires. The lamp and the contact are electrically connected.

[0003]

As described above, in the configuration in which the contacts are electrically connected to the printed circuit board by using the lead wires, there is a risk that the lead wires may be disconnected and the reliability is reduced. . Further, since the lead wires are soft, they cannot be positioned, and must be relied on manual work when connecting using solder or the like, which hinders improvement in productivity.

The present invention has been made in view of the above circumstances, and an object of the present invention is to facilitate electrical connection between an electric circuit for turning on an indicator lamp and a contact portion, thereby enabling automation of assembly. It is another object of the present invention to provide a highly reliable switch with an indicator light that is free from disconnection.

[0005]

According to a first aspect of the present invention, in order to achieve the above object, a pair of terminals for connecting an external electric wire and a circuit formed between the two terminals are integrated on an outer surface of a body. A switch that opens and closes in response to a manual operation of a handle whose part is exposed, and a current detection element that is inserted between one terminal and the switch and generates an output voltage according to a current flowing between the two terminals. An indicator light arranged so as to face the light-transmitting window provided on the handle and illuminated when the output voltage of the current detecting element is equal to or higher than a predetermined voltage; and a first block body made of synthetic resin and the conductive plate are simultaneously and integrally formed. A first substrate block on which the current detection element is mounted and formed, and a second block body made of synthetic resin are formed simultaneously and integrally with the conductive plate, and the second substrate on which the indicator light is mounted is formed. Board block and the above In the first substrate block, a lead portion electrically connected to the one terminal and the switch is protruded from the first block main body in a form in which a conductive plate is formed in a cylindrical shape, and the lead portion is provided. A connection hole through which the lead portion is inserted is formed in a mating member connected to the connector.

According to this configuration, the first resin made of synthetic resin is used.
A current detecting element is mounted on a first substrate block in which a conductive plate is simultaneously formed integrally with a block main body, and the conductive plate of the first block main body is formed in a cylindrical shape and leads protruding from the first block main body. Part through the connection hole of the mating member,
In the electrical connection portion between the terminal plate or the switch and the current detection element, the lead portion is positioned by being inserted into the connection hole, and the positioning of the mating member connected to the first block body is performed. It is possible to automate the assembly simply by using possible assembly equipment. In addition, since the lead portion is formed by forming the conductive plate into a cylindrical shape, the strength is large and the possibility of disconnection is small compared to the lead wire made of insulated wire, and the reliability is greatly improved. become.

According to a second aspect of the present invention, in order to achieve the above object, a pair of terminals for connecting an external electric wire and a circuit formed between the two terminals are provided with a handle partially exposed on the outer surface of the body. A switch that opens and closes in response to a manual operation, a current detection element that is inserted between one terminal and the switch and generates an output voltage according to a current flowing between the two terminals, and is provided on the handle. An indicator lamp which is arranged so as to face the light-transmitting window and is turned on when the output voltage of the current detecting element becomes equal to or higher than a predetermined voltage, and a first block body made of a synthetic resin is formed integrally and integrally with the conductive plate. The first substrate block on which the current detection element is mounted and the second substrate block on which the indicator light is mounted by forming the second block body made of synthetic resin and the conductive plate at the same time and integrally with the conductive plate are mounted on the first substrate block. The first substrate provided in the container In the lock, a lead portion electrically connected to the one terminal and the switch is formed in a flat plate shape and protrudes from the first block body, and a mating member connected to the lead portion folds the lead portion. It is formed in a flat plate shape so as to be laser-welded by being bent between the first block main body and the lead portion.

According to this structure, the first resin made of synthetic resin is used.
A current detection element is mounted on a first substrate block in which a conductive plate is simultaneously formed integrally with the block body of the first block body, and a lead portion in which a part of the conductive plate protrudes in a flat plate shape from the first block body is bent. Therefore, the flat plate-shaped mating member is sandwiched between the first block main body and the lead portion, and laser welding is performed. Therefore, the mating member is attached to the lead portion at the electrical connection portion between the terminal plate and the switch and the current detecting element. As a result, the mating member is positioned by being sandwiched between the first block body and the lead portion, so that the mating member connected to the first block body can be positioned. Only by using the device, it becomes possible to automate the assembly. In addition, since the lead portion is formed by a part of the conductive plate, the strength is large and the possibility of disconnection is small compared to the lead wire made of the insulated wire, and the reliability is greatly improved. Become.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the container is formed by combining a body having an open surface with a cover which is covered by an opening of the body. The body is formed with a positioning guide for positioning the first board block, the second board block, and the terminal boards at a fixed position for installation.

According to this structure, the first substrate block,
Since the second substrate block and the terminal plate are positioned by the guide provided on the body, each member is mounted at a predetermined position with respect to the body, and accurately positioned even in an assembling apparatus having low positioning accuracy. And the automation of assembly is further facilitated. According to a fourth aspect of the present invention, in the first or second aspect of the present invention, a plurality of mounting grooves in a direction perpendicular to the opening surface are formed on an inner peripheral edge of the opening of the body, and Are provided with mounting legs to be fitted into the mounting grooves, respectively.

According to this structure, the second mounting the indicator lamp
The positioning of the second block main body with respect to the body is performed by the mounting legs provided in the block main body and the mounting grooves provided in the body, so that the indicator lamp can be accurately positioned with respect to the body. Here, since the indicator light needs to be aligned with the translucent window of the steering wheel, the indicator light can be accurately positioned with respect to the body, so that the indicator light can be accurately positioned with respect to the translucent window of the steering wheel. Will be done. That is, it leads to automation of assembly.

According to a fifth aspect of the present invention, in the first or second aspect, the first substrate block is a diode bridge and an electronic component as a diode connected in a forward direction between the DC output terminals of the diode bridge. Are connected as the current detecting element, and a pair of light-emitting diode electronic components connected in anti-parallel are mounted on the second substrate block as the indicator light, and an electronic component as a current-limiting resistor of the light-emitting diode is provided. The electronic component is mounted on the first block main body and the second block main body at a mounting portion, and on a rear surface side of each electronic component, a connection portion between the conductive plate and each electronic component by soldering is provided. Confirmation holes to be exposed are respectively formed.

According to this configuration, since the connection portion of each electronic component and the conductive plate by solder is exposed by the confirmation hole, if each electronic component is pushed from the back side with a pin or the like, each electronic component is connected to the conductive plate. The state of connection with the device can be easily confirmed, and the work of confirming the state of electrical connection is facilitated.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) As shown in FIG. 1, a body 1 is made of a synthetic resin body 10 formed in a box shape having an open upper surface in the figure.
And a synthetic resin cover 20 that covers the opening of the body 10 by using a metal assembly frame 2. The internal space of the body 10 is divided into four sections by a partition wall 11, and the terminal storage chambers 12 and 1 are respectively provided.
3, a contact part storage chamber 14 and a substrate block storage chamber 15. As shown in FIG. 2, a terminal plate 31 is stored in the terminal storage room 12, and a terminal plate 32 is stored in the terminal storage room 13. Further, the connection plate 33 and the switch 34 are stored in the contact part storage chamber 14. The substrate block storage chamber 15 stores a current detection block 40 described later.

Each of the terminal plates 31 and 32 is formed by bending a conductive plate into a substantially U-shape whose lower surface is open in the figure.
Are provided with two locking springs 35, and the terminal plate 32 is provided with one lock spring.
The individual locking springs 35 are provided inside. Each of the locking springs 35 has one end of a conductive and elastic band plate substantially J-shaped.
A lock piece is formed by bending the lock piece and the contact piece by bending the other end into a substantially S-shape on the same side as the one end. The terminal boards 31 and 32 are provided inside the terminal boards 31 and 32 so as to face a part of the terminals 31 and 32. Therefore, when an electric wire is introduced between the terminal plates 31, 32 and the locking spring 35 through an electric wire insertion opening (not shown) formed in the bottom wall of the body 10, the locking piece and the contact piece elastically contact the electric wire, and the terminal The electric wires are pressed against the plates 31 and 32 and the terminal plate 3
Electrical connection is made between the wires 1 and 32 and the electric wires. In addition, when the electric wire is introduced from one side of the lock, the leading edge of the lock piece bites into the electric wire, so that the electric wire is prevented from coming off. In short, when the distal end of the electric wire is inserted into the body 10 through the electric wire insertion port, the electric wire is electrically connected to the terminal plates 31 and 32 and at the same time, the electric wire is prevented from coming off. It has become so. A release button 36 made of synthetic resin is disposed on the bottom of the body 10 at a position where the release spring 36 can be brought into contact with the lock piece of the lock spring 35, and the release button 36 is formed on a release hole ( (Not shown) can be pushed using a tool such as a flathead screwdriver. When the release button 36 is pressed, the lock piece of the lock spring 35 bends away from the electric wire, and the electric wire can be pulled out. Here, the release button 36 is connected to the terminal boards 31 and 3
The two release buttons 36 are provided for each of the two lock springs 35 so that the lock pieces of the two lock springs 35 can be simultaneously bent. As described above, the terminal 30 is constituted by the terminal plate 31 or the terminal plate 32, the locking spring 35, and the release button 36. This type of terminal structure is known as a quick-connect terminal structure.

The connecting plate 33 is composed of a lower piece 33b having a fulcrum projection 33a projecting therefrom, and a connecting piece 33c extending from the side edge of the lower piece 33b to the upper end side of the connecting piece extending upward. Prepare together. On the fulcrum projection 33a, a substantially U-shaped open / close switch 34 whose upper side is opened is swingably mounted, and a movable contact 34a is provided on the upper outer surface of one leg of the open / close switch 34.
Is provided. A fixed contact (not shown) that forms a contact portion facing the movable contact 34 a is provided on the terminal plate 32.
Therefore, when the switch 34 swings, the movable contact 34a comes in contact with and separates from the fixed contact.

The first stored in the substrate block storage chamber 15
As shown in FIG. 3 and FIG. 4, a current detection block 40 as a substrate block includes a substrate block 43 in which a synthetic resin block main body 41 is integrally formed with a conductive plate 42 at the same time.
The diode bridge 44 and the diode 45 are mounted as current detection elements. Here, body 1
The substrate block storage chamber 15 is formed by the side walls 0 and the partition wall 11.
Is formed, the side wall and the partition wall 11 of the body 10 are formed.
Functions as a positioning guide for the current detection block 40. In addition, a current limiting resistor 46 to an indicator light described later.
a is also implemented. This resistor 46a is made of a chip component. Diode bridge 4 in block body 41
4, confirmation holes 47 penetrating from front to back (front and rear in the drawing) are formed at positions where the electronic components of the diode 45 and the resistor 46a are mounted, and a part of the conductive plate 42 is exposed at each confirmation hole 47. . Thus, the conductive plate 4 exposed in the confirmation hole 47
If each electronic component is mounted on a part of 2 by soldering, a connection portion between the electronic component and the conductive plate 42 can be visually recognized on the back surface side of the electronic component. Therefore, by pressing the electronic component with a pin or the like, the connection state by solder can be easily confirmed. That is, it is easy to check the connection state of the electronic components.

The conductive plate 42 forms a circuit pattern for connecting each electronic component inside the block main body 41, and a part of the conductive plate 42 projects from the upper surface of the block main body 41 and has four lead portions 48. , 49 are formed. Each of the lead portions 48 and 49 is a set of two. The two lead portions 48 are connected to the terminal plate 31 and the connection plate 33, and the two lead portions 49 are connected to a display block 50 described later. You. Each lead portion 48 has a shape in which a projecting portion of the conductive plate 42 from the block main body 41 is bent into a cylindrical shape,
As shown in FIG. 5, one lead portion 48 is inserted into a connection hole 31b of a connection piece 31a protruding from the upper edge of the terminal plate 31, and the other lead portion 48 is connected to a connection piece 3 provided on the connection plate 33.
3c is inserted into the connection hole 33d. That is, the lead 4
8 can be positioned between the current detection block 40, the terminal plate 31, and the connection plate 33 simply by inserting the current detection block 8 into the connection holes 31b and 33d. With this configuration, the current detection block 4
If the terminal plate 31 and the connection plate 33 are assembled from above after the assembly of the terminal
Since the lead portion 48 and the terminal plate 31 and the connection plate 33 are positioned by being inserted into the terminals b and 33d, they can be solder-joined using a laser.

The lead portion 49 has a flat plate shape and is connected to a display block 50 as a second substrate block. As shown in FIGS. 6 and 7, the display block 50 includes a pair of light-emitting diodes 54 a and 54 b connected in anti-parallel to a substrate block 53 in which a synthetic resin block main body 51 is formed integrally with a conductive plate 52. It is mounted as an indicator light and mounted with a resistor 46b for current limiting of the light emitting diodes 54a and 54b. The resistor 46b is connected in series to the resistor 46a provided in the current detection block 40, and
a, 54b function as current limiting. Here, the light emitting diodes 54a and 54b and the resistor 46b are made of chip components. The light emitting diode 54 in the block body 51
Confirmation holes 55 penetrating from front to back (up and down in the figure) are formed at locations where the electronic components a, 54b and the resistor 46b are mounted, and a part of the conductive plate 52 is exposed in each confirmation hole 55.
That is, similarly to the current detection block 40, by mounting each electronic component on the conductive plate 52 exposed in the confirmation hole 55 by soldering, it is possible to easily check the connection state of each electronic component to the conductive plate 52. Can be.

In the display block 50, the light emitting diode 5
The positions of 4a and 55b are restricted to fixed positions on the upper surface of the block body 51. The conductive plate 52 forms a circuit pattern inside the block body 51, and a part thereof is exposed on a side surface of the block body 51 and functions as a connection piece 56. The connection piece 56 is formed with a connection hole 57 through which the lead 49 of the current detection block 40 is inserted. Therefore, the current detection block 40 and the display block 50 can be electrically connected by mounting the display block 50 on the current detection block 40 and inserting the lead portions 48 into the connection holes 57 and joining them by soldering. is there.

Since the current detection block 40 is stored in the substrate block storage chamber 15 provided in the body 10, positioning is not particularly necessary. However, since the display block 50 mostly projects from the upper surface of the body 10, 1
Positioning to zero is required. In view of this, three mounting legs 58 project downward from the side of the block main body 51 of the display block 50, and mounting grooves 16 into which the mounting legs 58 fit are formed on the inner surface of the side wall of the body 10. I have. Therefore, if the display block 50 is assembled to the body 10 with the mounting leg 58 aligned with the mounting groove 16, the display block 50 is positioned with respect to the body 10. Further, the partition wall 1 formed on the body 10
A boss 17 as a positioning guide is protrudingly provided at a key point of the body 1, and the boss 17 is fitted into a boss hole 59 formed on the lower surface of the block main body 51.
0 and the display block 50 are positioned.

In the above-described configuration, the display block 50 is mounted on the body 10, and the resistor 46b and the movable contact 34a
Or the distance from the fixed contact cannot be made sufficiently large. Therefore, an arc generated when the movable contact 34a separates from the fixed contact may fly to the resistor 46b. Therefore, an arc avoiding member 51a is provided integrally with the block body 51 in the vicinity of the resistor 46b, and the arc is connected to the resistor 4b.
6b is prevented from flying.

With the above-described configuration, the circuit shown in FIG. 8 can be configured. This circuit is mainly configured to be used for opening / closing a commercial power supply.
When the contact section SW composed of the fixed contact and the fixed contact is closed, a current flows through the diode bridge 44 and the diode 45. Here, the current passing through the contact SW passes through a series circuit of three diodes.
A voltage corresponding to the forward voltage drop of the three diodes is applied to the series circuit of the resistors 4a and 54b and the resistor 46b. In short, when the contact portion SW is closed and energized, the voltage between both ends of the current detecting element composed of the diode bridge 44 and the diode 45 becomes equal to or higher than the predetermined voltage, and the light emitting diodes 54a and 54b as indicator lights are turned on. In FIG. 8, a resistor 46 is a series resistor of the resistors 46a and 46b.

The cover 20 which forms the body 1 together with the body 10 has an opening window 21 which penetrates up and down in the figure, and extends over the body 10 and the cover 20 when covered with the body 10. The body 10 and the cover 20 are integrally joined by fitting the leg of the assembly frame 2 into the assembly groove 22 formed by the above, and opening the forked portion provided at the tip of the leg of the assembly frame 2. . A handle 23 for manual operation is inserted into the opening window 21 of the cover 20, and an upper portion of the handle 23 is exposed from the opening window 21 to the outside of the body 1. A cylindrical portion (not shown) is integrally provided on the lower surface of the handle 23 and an upper end of a reversing spring 24 formed of a coil spring is inserted into the cylindrical portion. The lower end of the reversing spring 24 is inserted into the opening / closing element 34. Support protrusions 23a are provided on both sides of the handle 23, and support recesses 21a into which the support protrusions 23a are inserted are formed on the inner surface of the opening window 21. Support projection 23a
Is formed in a tapered shape, and the seesaw operation of the handle 23 is enabled by using this portion as a fulcrum. That is, since the reversing spring 24 urges the handle 23 upward, the support protrusion 23a contacts the upper surface of the support recess 21a, and the upper surface of the support recess 21a forms an inverted V-shaped recess. From the handle 2 with the V-shaped vertex as the fulcrum
3 seesaw operation becomes possible.

When the handle 23 is moved in a seesaw operation, the reversing spring 24 is gradually compressed as the handle 23 moves, but when the handle 23 exceeds a specific position (so-called dead center), the reversing spring 24 rapidly expands. The opening / closing member 34 is inverted and rocked. By such a snap operation, the movable contact 3
4a can be separated from and brought into contact with the fixed contact.

The portion of the display block 50 where the light emitting diodes 54a and 54b are arranged is inserted into the handle 23, and the light emitting diode 5
Light-transmitting windows 23b are formed at portions corresponding to 4a and 54b. A light-transmitting lamp cover 25 is provided on the light-transmitting window 23b.
And a transparent card cover 26 is detachably attached to the upper part of the handle 23. The name card which is operated by the switch and the place where the load is arranged are held between the card cover 26 and the handle 23.

The display unit 50 is fixed between the body 10 and the cover 20 by being partially held between the body 10 and the cover 20 when the cover 20 is connected to the body 10. You. That is, display block 5
0 is attached to a predetermined position independently of the handle 23. The above-mentioned container body 1 can be attached to a mounting frame for a large-sized embedded wiring device standardized as JIS standard or Japan Wiring Appliance Manufacturers Association standard. That is, the body 1 is formed to have substantially the same size as a wiring device having a unit size so that up to three mounting frames can be mounted on the most common mounting frame for three. Each assembly frame 2 is provided with a pair of fixed claws 3 which are engaged with engagement holes provided in side frames of the mounting frame, and the engagement holes of the mounting frame and the fixed claws 3 of the assembly frame 2 are provided. The housing 1 is held by the mounting frame by the engagement. The assembly frame 2 is also provided with a fixing hole 4 that is connected and held to the mounting frame by inserting an engaging claw provided on the metal mounting frame.

The above-described switch with an indicator light is provided in the body 1
The current detection block 40 is inserted from above into the substrate block storage chamber 15 provided in
The terminal plates 31 and 32 are inserted into the contact portion 3 together with the release button 36 and the locking spring 35 from above, and the switch 34 is inserted into the contact portion storage chamber 14 from above. The display block 50
Is mounted on the body 10 from above so as to rest on the current detection block 40, and the reversing spring 2 is mounted on the display block 50 from above.
4, the handle 23 is mounted, the cover 20 is attached from above the handle 23, and the assembly frame 2 is attached from above the cover 20. As described above, since each part is sequentially assembled to the body 10 from above,
It is easy to automate the assembly work.

(Embodiment 2) In this embodiment, FIGS.
0, the lead portion 47 of the current detection block 40
Is different from the first embodiment in that it is formed in a flat plate shape. In this configuration, the connecting piece 31a of the terminal plate 31 and the connecting piece 33c of the connecting plate 33 are formed in a flat plate shape, and the connecting portion between the block body 41 and the lead portion 47 is formed by bending the lead portion 47. The connection pieces 31a and 33c and the lead portion 47 are laser-welded with the 31a and 33c interposed therebetween. That is, the connection pieces 31a and 33c are positioned by contacting the lead portions 47, and are positioned by being sandwiched between the block body 41 and the lead portions 47. Also in this configuration, positioning of the current detection block 40 with respect to the terminal plate 31 and the connection plate 33 is easy, and there is no possibility of disconnection. Other configurations and operations are the same as those of the first embodiment, and thus description thereof is omitted.

As shown in FIG. 11, the lead portion 47 of the current detection unit 40 may be formed in a round pin shape.
In this case, the block main body 41 is simultaneously formed integrally with the round pin-shaped lead portion 47 joined to the conductive plate of the current detection unit 40.

[0031]

According to the first aspect of the present invention, as described above, a pair of terminals for connecting external electric wires and a circuit formed between both terminals can be manually operated by a handle partially exposed on the outer surface of the body. A switch that opens and closes in response, a current detection element that is inserted between one terminal and the switch and generates an output voltage according to a current flowing between both terminals, and a light-transmitting window provided on the handle. And an indicator light that is lit when the output voltage of the current detecting element is equal to or higher than a predetermined voltage, and a first block body made of a synthetic resin is formed by simultaneously and integrally forming the first block main body with the conductive plate and the current detecting element is mounted. A first substrate block including a first substrate block and a second substrate block formed by simultaneously molding a second block body made of a synthetic resin with a conductive plate and having an indicator light mounted therein; At one terminal and switch The lead connected to the lead is formed by projecting the first block main body in a form in which a conductive plate is formed into a cylindrical shape, and a connection hole through which the lead is inserted is formed in a mating member connected to the lead. A current sensing element is mounted on a first substrate block in which a conductive plate is simultaneously formed integrally with a first block body made of a synthetic resin, and the conductive plate of the first block body is formed in a cylindrical shape. Since the lead portion protruding from the first block body is inserted into the connection hole of the mating member, the lead portion is inserted into the connection hole at the electrical connection between the terminal plate or the switch and the current detection element. Therefore, there is an advantage that the assembly can be automated simply by using an assembling apparatus capable of aligning the mating member connected to the first block main body. In addition, since the lead portion is formed by forming the conductive plate into a cylindrical shape, there is an advantage that the strength is large, the possibility of disconnection is small, and the reliability is greatly improved as compared with a lead wire made of an insulated wire. .

According to a second aspect of the present invention, as described above, a pair of terminals for connecting external electric wires and a circuit formed between the two terminals are responsive to a manual operation of a handle partially exposed on the outer surface of the body. Switch that opens and closes, a current detection element that is inserted between one terminal and the switch and generates an output voltage according to the current flowing between both terminals, and is arranged so as to face the translucent window provided on the handle And a first lamp on which the current detection element is formed by simultaneously molding an indicator lamp that is turned on when the output voltage of the current detection element is equal to or higher than a predetermined voltage and the first block body made of synthetic resin with the conductive plate. A substrate block and a second substrate block formed by molding a second block body made of a synthetic resin and a conductive plate simultaneously and integrally and having an indicator light mounted therein are provided in the body. Electrical connection to terminals and switches Lead portion connected to the first tabular
The mating member protruding from the block body and connected to the lead portion is flattened so as to be laser-welded in a form sandwiched between the first block body and the lead portion by bending the lead portion. The current detection element is mounted on a first substrate block in which a conductive plate is simultaneously formed integrally with a first block body made of a synthetic resin.
By bending a lead portion in which a part of the conductive plate is protruded from the block main body in a flat plate shape, the flat plate-shaped mating member is sandwiched between the first block main body and the lead portion to perform laser welding. At the electrical connection between the terminal plate or the switch and the current detecting element, the mating member contacts the lead and
Positioning is performed by sandwiching the mating member between the block main body and the lead portion, and only by using an assembling apparatus capable of aligning the mating member connected to the first block main body, There is an advantage that the assembly can be automated. In addition, since the lead portion is formed by a part of the conductive plate, there is an advantage that the strength is large, the possibility of disconnection is small, and the reliability is greatly improved as compared with a lead wire made of an insulated wire.

According to the third aspect of the present invention, the container is formed by combining a body having an open surface with a cover which is covered by an opening of the body, and the body includes a first substrate block and a cover. In the case where a positioning guide for positioning and mounting the second board block and both terminal boards at a fixed position is formed, a guide provided with the first board block, the second board block, and the terminal board in the body. As a result, each member is placed in a predetermined position with respect to the body, and accurate positioning can be performed even with an assembling apparatus having a low positioning accuracy, so that automation of assembly is further facilitated. There is an advantage of becoming.

According to the fourth aspect of the present invention, a plurality of mounting grooves in a direction perpendicular to the opening surface are formed in the inner peripheral edge of the opening of the body, and the second block body is fitted in the mounting grooves. In the case where the mounting legs are projected, the positioning of the second block main body with respect to the body is performed by the mounting legs provided on the second block main body on which the indicator light is mounted and the mounting grooves provided on the body. There is an advantage that the indicator light can be accurately positioned with respect to the body.
Also, since the indicator light needs to be aligned with the translucent window of the handle, the indicator light can be accurately positioned with respect to the body, so that the indicator light is also accurately positioned with respect to the translucent window of the handle. Therefore, there is an advantage that it leads to automation of assembly.

According to a fifth aspect of the present invention, a diode bridge and an electronic component as a diode connected in a forward direction between the diode bridge and the DC output terminal of the diode bridge are connected to the first substrate block as a current detecting element. A pair of electronic components as light-emitting diodes connected in anti-parallel are mounted as indicator lights on the substrate block, and electronic components as current-limiting resistors for the light-emitting diodes are mounted on the substrate block, and the first block body and the second block are mounted. In the mounting part of each electronic component in the main body, on the back side of each electronic component, there is formed a confirmation hole that exposes the connection part by solder between the conductive plate and each electronic component. Since the connection site by soldering with the board is exposed by the confirmation hole, if you push each electronic component with a pin etc. from the back side, each electronic component The connection between the collector plate can be easily confirmed, there is an advantage that confirmation work of electrical connection is facilitated.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing Embodiment 1 of the present invention.

FIG. 2 is a perspective view showing a state in which the cover is removed.

FIG. 3 is an exploded perspective view of a front surface side of the current detection unit used in the above.

FIG. 4 is a perspective view of the back side of the current detection unit used in the first embodiment.

FIG. 5 is an exploded perspective view showing a relationship between the current detection unit and a terminal plate and a connection plate according to the first embodiment.

FIG. 6 is a perspective view of a display unit used in the embodiment.

FIG. 7 is a bottom view of the display unit used in the above.

FIG. 8 is a circuit diagram of the same.

FIG. 9 is a perspective view showing a second embodiment of the present invention with a cover removed.

FIG. 10 is an exploded perspective view showing the relationship between the above current detection unit, a terminal plate, and a connection plate.

FIG. 11 is a perspective view of another example with a cover removed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 10 Body 11 Partition wall 15 Substrate block storage room 16 Mounting groove 20 Cover 23 Handle 23b Translucent window 30 Terminal 31 Terminal plate 31a Connection piece 31b Connection hole 33 Connection plate 33c Connection piece 33d Connection hole 34 Switch 40 Current detection Block 41 Block main body 42 Conductive plate 44 Diode bridge 45 Diode 46 Resistance 46a Resistance 46b Resistance 47 Confirmation hole 48 Lead part 50 Display block 51 Block body 52 Conductive plates 54a, 54b Light emitting diode 55 Confirmation hole 58 Mounting leg

Claims (5)

[Claims] 1. A pair of terminals for connecting an external electric wire, and a switch for opening and closing a circuit formed between the terminals in response to a manual operation of a handle partially exposed on the outer surface of the body. A current detection element inserted between the terminal and the switch to generate an output voltage according to the current flowing between the two terminals,
An indicator lamp which is arranged so as to face the translucent window provided on the handle and which is turned on when the output voltage of the current detecting element becomes a predetermined voltage or more, and a first block main body made of synthetic resin are simultaneously formed integrally with the conductive plate. A first substrate block on which the current detection element is mounted and a second block body made of synthetic resin are formed simultaneously and integrally with a conductive plate, and a second block on which the indicator light is mounted. A substrate block provided in the body, and a lead portion electrically connected to the one terminal and the switch in the first substrate block is formed by molding a conductive plate into a cylindrical shape, and the first block body is formed. A switch with an indicator light, characterized in that a connection hole through which the lead is inserted is formed in a mating member that is protruded and connected to the lead. 2. A pair of terminals for connecting external electric wires, and a switch for opening and closing a circuit formed between the terminals in response to a manual operation of a handle partially exposed on the outer surface of the body. A current detection element inserted between the terminal and the switch to generate an output voltage according to the current flowing between the two terminals,
An indicator lamp which is arranged so as to face the translucent window provided on the handle and which is turned on when the output voltage of the current detecting element becomes a predetermined voltage or more, and a first block main body made of synthetic resin are simultaneously formed integrally with the conductive plate. A first substrate block on which the current detection element is mounted and a second block body made of synthetic resin are formed simultaneously and integrally with a conductive plate, and a second block on which the indicator light is mounted. A substrate block is provided in the body, and a lead portion electrically connected to the one terminal and the switch in the first substrate block is formed in a flat plate shape and protrudes from the first block main body; The mating member connected to the portion is formed in a flat plate shape so as to be laser-welded in a form sandwiched between the first block main body and the lead portion by bending the lead portion. thing Indicator lights with a switch which is characterized. 3. The body according to claim 3, wherein the body has an open side.
The first substrate block, the second substrate block, and the two terminal boards are positioned and housed in the body by combining a cover that covers the opening of the body. 3. A switch with an indicator light according to claim 1, wherein a positioning guide to be mounted is formed. 4. An inner peripheral edge of an opening portion of the body is provided with a plurality of mounting grooves in a direction perpendicular to the opening surface, and mounting legs respectively fitted in the mounting grooves are formed in the second block body. The switch with an indicator light according to claim 1 or 2, wherein the switch is protruded. 5. The first substrate block is connected as a current detecting element with a diode bridge and a diode electronic component connected in a forward direction between the DC output terminals of the diode bridge, and is connected to the second substrate block. A pair of light-emitting diodes electronic components connected in anti-parallel are mounted as the indicator light, and a current-limiting resistance electronic component of the light-emitting diodes is mounted on the first block body and the second block body. Wherein a confirmation hole for exposing a solder-connected portion between the conductive plate and each of the electronic components is formed in a mounting portion of each of the electronic components in the back surface side of each of the electronic components. 3. The switch with an indicator light according to claim 1 or 2.