JP6318730B2 - Magnetic contactor - Google Patents

Description

  The present invention relates to an electromagnetic contactor in which a case includes an electromagnetic contactor body having a contact mechanism part having a contact mechanism and an electromagnet unit part having an electromagnet unit for driving the contact mechanism.

As a conventional electromagnetic contactor, for example, one shown in FIG. 27 is known (see Patent Document 1). FIG. 27 is a cross-sectional view of an example of a conventional electromagnetic contactor.
The electromagnetic contactor 101 shown in FIG. 27 includes a contact mechanism unit 110 including a contact mechanism 111 and an electromagnet unit unit 120 including an electromagnet unit 121 that drives the contact mechanism 111.

Here, the contact mechanism 111 is disposed so as to be able to contact with and separate from a plurality of (for example, two) fixed contacts 112 each having a fixed contact, and a first position that contacts the plurality of fixed contacts and a plurality of fixed contacts. And a movable contact 113 that moves between a second position away from the second position.
On the other hand, the electromagnet unit 121 drives the movable contact 113, and includes a fixed iron core 117 and a movable iron core 118 disposed below the fixed iron core 117. A movable shaft 114 extending downward from the movable contact 113 is fixed to the movable contact 113, and the movable shaft 114 passes through the center of the fixed iron core 117 and is connected to the movable iron core 118 at the lower end thereof. . The electromagnet unit 121 includes a coil holder 122 that houses the fixed iron core 117 and the movable iron core 118 in the center, and an electromagnetic coil 123 is wound around the outer periphery of the coil holder 122. Coil terminals 125 are connected to both ends of the electromagnetic coil 123. A yoke 124 is provided below the coil holder 122. A return spring 116 is provided around the movable shaft 114 and above the movable iron core 118 to urge the movable iron core 118 downward and urge the movable contactor 113 to the second position. A contact pressure spring 115 that biases the movable contact 113 upward is provided between the fixed iron core 117 and the movable contact 113.

In the electromagnetic contact 101 configured as described above, when the electromagnetic coil 123 of the electromagnet unit 121 is in a non-excited state, no electromagnetic attractive force is generated in the fixed iron core 117 and the movable iron core 118, and the movable iron core is caused by the return spring 116. 118 is biased downward, the movable contactor 113 is in the second position, and the contact mechanism 111 is in the open state.
In the open state of the contact mechanism 111, when a voltage is applied from an external power source to the coil terminal 125 and the electromagnetic coil 123 is excited, an attractive force is generated between the fixed iron core 117 and the movable iron core 118, and the movable iron core 118. Is sucked upward against the return spring 116. When the movable shaft 114 moves upward in accordance with the upward movement of the movable iron core 118, the movable contact 113 moves together with the movable shaft 114 by the spring force of the contact pressure spring 115, and a plurality of fixed contacts 112. Contact the fixed contact. As a result, the contact mechanism 111 is closed, and an electric current input from an external input terminal (not shown) passes through the fixed contact 112, the movable contact 113, and the fixed contact 112 to the external connection terminal (not shown). It is supplied to.

JP 2012-212668 A

Incidentally, an electromagnetic contactor such as the electromagnetic contactor 101 shown in FIG. 27 is generally housed in a case and attached to a mounted portion such as a control panel.
And in recent years, a request to connect a mating connector connected to an external power source to coil terminals connected to both ends of the electromagnetic coil, and a mating electric wire connected to the external power source have been connected to both ends of the electromagnetic coil. There is a request to connect to the coil terminal, and it is necessary to respond to both requests.

  Here, in the electromagnetic contactor 101 shown in FIG. 27, the coil terminal 125 is connected to both ends of the electromagnetic coil 123, and when connecting the mating connector connected to the external power source to the coil terminal 125, It is necessary to form a connector housing that fits into the mating connector in the case containing the electromagnetic contactor 101, and to make the coil terminal 125 a tab terminal that contacts the mating contact provided in the mating connector.

Further, in the electromagnetic contactor 101 shown in FIG. 27, when connecting the counterpart wire connected to the external power source to the coil terminal 125, a housing for the terminal block is formed in the case containing the electromagnetic contactor 101, and the coil It is necessary to make the terminal 125 a tab terminal with a female screw that contacts the mating electric wire.
That is, in the conventional electromagnetic contactor such as the electromagnetic contactor 101 shown in FIG. 27, when the tab terminal connected to the electromagnetic coil is connected to the mating connector connected to the external power source, the connector housing is integrated with the case. To form. In addition, when connecting a tab terminal with a female screw connected to an electromagnetic coil to a counterpart electric wire connected to an external power supply, the housing of the terminal block is formed integrally with the case, and a case with a different shape according to each case It was necessary to produce. As described above, when separate cases having different shapes are manufactured, there is a problem that the manufacturing cost of the case becomes expensive.

  Accordingly, the present invention has been made to solve this problem, and its purpose is to connect a mating connector connected to an external power source to a tab terminal connected to an electromagnetic coil of an electromagnet unit, and an electromagnet. Providing an electromagnetic contactor with a case that accommodates the main body of the magnetic contactor that can be shared with both the case of connecting a mating wire connected to an external power supply to a tab terminal with a female thread connected to the electromagnetic coil of the unit There is to do.

  In order to achieve the above object, an electromagnetic contactor according to an aspect of the present invention includes an electromagnetic contactor including a contact mechanism unit including a contact mechanism and an electromagnet unit unit including an electromagnet unit that drives the contact mechanism. The main body is an electromagnetic contactor housed in a case, and the case is used when a mating connector connected to an external power source is connected to a tab terminal connected to an electromagnetic coil of the electromagnet unit. Both the connector housing that fits into the mating connector and the terminal block housing that is used when the mating wire connected to the external power source is connected to the female threaded tab terminal connected to the electromagnetic coil of the electromagnet unit It is characterized by having a possible housing mounting part.

Here, “mating wire” includes the case of the wire itself connected to the external power source and the case of the crimp terminal when the crimp terminal is connected to the tip of the wire connected to the external power source. is there.
According to this electromagnetic contactor, the case housing the electromagnetic contactor is fitted to the mating connector used when the mating connector connected to the external power source is connected to the tab terminal connected to the electromagnetic coil of the electromagnet unit. A housing mounting portion that can be mounted on both the connector housing and the terminal block housing used when connecting the mating wire connected to the external power source to the female screw tab terminal connected to the electromagnetic coil of the electromagnet unit ing. For this reason, both the connector housing and terminal block housing that fit into the mating connector can be attached to the case, and the mating connector connected to the external power supply is connected to the tab terminal connected to the electromagnetic coil of the electromagnetic unit. Electromagnetic contact with a case that accommodates the electromagnetic contactor body, which can be used both for connecting to a tab terminal with a female screw connected to an electromagnetic coil of an electromagnet unit and to a counterpart wire connected to an external power source Can be provided. As a result, when connecting the mating connector connected to the external power supply to the tab terminal connected to the electromagnetic coil of the electromagnet unit, and connecting to the external power supply to the tab terminal with a female screw connected to the electromagnetic coil of the electromagnet unit There is no need to manufacture the case separately when the counterpart wire is connected, and the manufacturing cost of the case can be reduced.

Further, in this electromagnetic contactor, the case includes a lower case that houses the electromagnetic contactor body, and an upper case that is attached to the lower case and covers the upper side of the electromagnetic contactor body that is housed in the lower case. Preferably, the housing mounting portion is provided integrally with the lower case.
According to this electromagnetic contactor, the case for accommodating the electromagnetic contactor can be provided with a simple configuration by configuring the case with the lower case and the upper case, and the housing mounting portion can be provided integrally with the lower case. The lower case having the housing mounting portion can be formed by integral molding, and the manufacturing cost of the case having the housing mounting portion can be reduced.

Further, in this electromagnetic contactor, the housing mounting portion is provided on an outer surface of the outer wall of the lower case, and a connector mounting portion provided in the connector housing and a terminal block mounting portion provided in the terminal block housing. It is preferable to have a receiving groove capable of receiving both.
Further, in this electromagnetic contactor, the receiving groove is formed to extend downward from the upper end of the housing mounting portion so that the upper portion opens, and the connector mounting portion provided with the connector housing and the terminal block housing It is preferable that both of the terminal block mounting portions provided in the are received from the upper side to the lower side of the opened receiving groove.

  According to this electromagnetic contactor, the connector housing and the terminal block housing can be mounted on the housing mounting portion simply by inserting the connector mounting portion of the connector housing and the terminal block mounting portion of the terminal block housing into the receiving groove from above to below. Therefore, the mounting operation of the connector housing and the terminal block housing to the housing mounting portion can be easily performed. Further, when the connector mounting portion of the connector housing and the terminal block mounting portion of the terminal block housing are mounted on the housing mounting portion, the connector mounting portion and the terminal block mounting portion extend downward from the upper end of the housing mounting portion. Since it is received in the formed receiving groove, the movement of the connector housing and the terminal block housing in the front-rear direction can be restricted.

Further, in this electromagnetic contactor, the receiving groove is formed with a locking portion for locking a locking arm provided in the connector mounting portion when the connector mounting portion provided in the connector housing is received. It is preferable.
According to this electromagnetic contactor, it is possible to prevent the connector housing from being detached upward from the housing mounting portion.

  Further, in this electromagnetic contactor, the outer wall of the lower case is formed with a notch that is notched downward from the upper edge of the outer wall at a portion corresponding to the housing mounting portion, and the receiving groove has the When the connector mounting portion provided in the connector housing is received, the first protrusion formed on the connector mounting portion is placed on the lower edge of the notch, and the upper case When the connector housing is attached to the lower case, the first protrusion is sandwiched between the lower edge of the notch and the retaining protrusion provided on the upper case, so that the connector housing moves in the vertical direction. Is preferably regulated.

According to this electromagnetic contactor, it is possible to reliably prevent the connector housing from coming off in the vertical direction with respect to the housing mounting portion.
Further, in this electromagnetic contactor, when the terminal block mounting portion provided in the terminal block housing is received in the receiving groove, the second protrusion formed on the terminal block mounting portion is below the notch portion. When the upper case is attached to the lower case, the second protrusion is provided on the lower edge of the notch and the upper case when the upper case is attached to the lower case. It is preferable that the vertical movement of the terminal block housing is restricted.
According to this electromagnetic contactor, it is possible to securely prevent the terminal block housing from coming off in the vertical direction with respect to the housing mounting portion.

  According to the electromagnetic contactor according to the present invention, the mating connector used when the case housing the electromagnetic contactor connects the mating connector connected to the external power source to the tab terminal connected to the electromagnetic coil of the electromagnet unit. A housing that can be fitted with both a connector housing that fits into the terminal block housing and a terminal block housing that is used when connecting a mating wire connected to an external power source to a tab terminal with an internal thread connected to an electromagnetic coil of an electromagnet unit Department. For this reason, both the connector housing and terminal block housing that fit into the mating connector can be mounted on the case, and the mating connector connected to the external power source is connected to the tab terminal connected to the electromagnetic coil of the electromagnetic unit. Electromagnetic contact with a case that accommodates the electromagnetic contactor body, which can be used both for connecting to a tab terminal with a female screw connected to an electromagnetic coil of an electromagnet unit and to a counterpart wire connected to an external power source Can be provided. As a result, when connecting the mating connector connected to the external power supply to the tab terminal connected to the electromagnetic coil of the electromagnet unit, and connecting to the external power supply to the tab terminal with a female screw connected to the electromagnetic coil of the electromagnet unit There is no need to manufacture the case separately when the counterpart wire is connected, and the manufacturing cost of the case can be reduced.

It is a perspective view of 1st Embodiment of the electromagnetic contactor which concerns on this invention, and has shown the other party connector. It is a front view of the electromagnetic contactor shown in FIG. It is a right view of the electromagnetic contactor shown in FIG. It is a top view of the electromagnetic contactor shown in FIG. FIG. 5 is a partial cross-sectional view taken along line 5-5 in FIG. It is sectional drawing which follows the 6-6 line in FIG. It is a disassembled perspective view of the electromagnetic contactor shown in FIG. It is a disassembled perspective view of the electromagnetic contactor shown in FIG. 1, and has shown the back side of the connector housing. It is a figure of the state which attached the connector housing to the electromagnetic contactor main body from the state which decomposed | disassembled the electromagnetic contactor shown in FIG. It is a figure of the state which accommodated the electromagnetic contactor main body in the lower case from the state which attached the connector housing shown in FIG. 9 to the electromagnetic contactor main body. A connector housing is shown, (A) is a front view, (B) is a right view. The connector housing is shown, (A) is a rear view, (B) is a perspective view seen from the back side. It is a perspective view of 2nd Embodiment of the electromagnetic contactor which concerns on this invention, and has shown the other party electric wire together. It is a front view of the electromagnetic contactor shown in FIG. It is a right view of the electromagnetic contactor shown in FIG. It is a top view of the electromagnetic contactor shown in FIG. It is a partial cross section figure which follows the 17-17 line in FIG. It is sectional drawing which follows the 18-18 line in FIG. It is a disassembled perspective view of the electromagnetic contactor shown in FIG. It is a disassembled perspective view of the electromagnetic contactor shown in FIG. 13, and has shown the back side of the terminal block provided with the terminal block housing. It is the figure of the state which attached the terminal block provided with the terminal block housing to the electromagnetic contactor main body from the state which decomposed | disassembled the electromagnetic contactor shown in FIG. It is the figure of the state which accommodated the electromagnetic contactor main body in the lower case from the state which attached the terminal block provided with the terminal block housing shown in FIG. 21 to the electromagnetic contactor main body. It is a perspective view which shows the terminal block housing which comprises a terminal block, the terminal with a screw, and the tab terminal with a female screw connected to the electromagnetic coil. It is a right view which shows the terminal block housing which comprises a terminal block, the terminal with a screw, and the tab terminal with a female screw connected to the electromagnetic coil. The terminal block is shown, (A) is a plan view, (B) is a front view, and (C) is a right side view. A terminal block is shown, (A) is a rear view, (B) is the perspective view seen from the back side. It is sectional drawing of an example of the conventional electromagnetic contactor.

DESCRIPTION OF EMBODIMENTS Hereinafter, modes for carrying out the present invention (hereinafter referred to as embodiments) will be described in detail with reference to the drawings.
First, with reference to FIG. 1 thru | or FIG. 12 (A), (B), 1st Embodiment of the electromagnetic contactor which concerns on this invention is described.
The electromagnetic contactor 1 shown in FIG. 1 includes an electromagnetic contactor body 10 (see FIGS. 7 to 10) and a case 60 that houses the electromagnetic contactor body 10.

  Here, the electromagnetic contactor body 10 has a contact mechanism unit 20 provided with a contact mechanism 21 (see FIG. 5) inside, and an electromagnet unit unit 30 provided with an electromagnet unit 31 that drives the contact mechanism 21 inside. doing. The contact mechanism 21 includes a pair of fixed contacts (not shown) and a movable contact (not shown) disposed so as to be able to contact with and separate from the pair of fixed contacts. As shown in FIGS. 5, 7, and 8, the electromagnet unit 30 has an electromagnet unit 31 disposed in an iron housing 30 a. And the electromagnet unit 31 has the electromagnetic coil 32 and drives the movable contact of the contact mechanism 21, as shown in FIG.5, FIG.7 and FIG.8.

  A pair of metal tabs to which a connector C connected to an external power source (not shown) via an electric wire W is connected to both ends of the electromagnetic coil 32 of the electromagnetic contactor 1 shown in FIGS. Terminal 33 is connected. As shown in FIG. 7, each tab terminal 33 is fixed to the housing 30a via an insulator 33a so as to protrude outward from the housing 30a. The mating connector C is provided with a metal female contact (not shown) connected to the electric wire W. When the mating connector C is fitted into the fitting hood portion 82 of the connector housing 80 described later, the female contacts provided on the mating connector C come into contact with the tab terminals 33.

As shown in FIGS. 1 to 10, the case 60 includes a lower case 40 that houses the electromagnetic contactor body 10, and an upper portion of the electromagnetic contactor body 10 that is attached to the lower case 40 and accommodated in the lower case 40. And an upper case 50 covering the top.
Here, the lower case 40 is formed by molding an insulating synthetic resin. As shown in FIGS. 1 to 10, the lower case 40 is formed with respect to the front end wall 41 and the front end wall 41 constituting the outer wall. A rear end wall 42 arranged at the rear, a right side wall 43 connecting the front end wall 41 and the right side edge of the rear end wall 42, a left side wall 44 connecting the left side edge of the front end wall 41 and the rear end wall 42, and A front end wall 41, a rear end wall 42, a right side wall 43, and a bottom wall 45 connecting the bottoms of the left side wall 44 are provided. Further, the front end wall 41 and the rear end wall 42 of the lower case 40 are provided with attachment portions 46 for attachment portions (not shown) such as a control panel.

As shown in FIGS. 1 to 5 and FIGS. 7 to 10, a substantially rectangular housing mounting portion 70 is integrally provided on the outer surface 41 a of the front end wall 41 of the lower case 40.
The housing mounting portion 70 is fitted to the mating connector C used when the mating connector C (see FIG. 1) connected to the external power source is connected to the tab terminal 33 connected to the electromagnetic coil 32 of the electromagnet unit 31. The connector housing 80 is connected to an external power supply to the female screw tab terminal 34 connected to the electromagnetic coil 32 of the electromagnet unit 31 described in the second embodiment of the electromagnetic contactor (see FIGS. 13 to 26). Both the terminal block housing 91 used when connecting the mating electric wire W can be mounted. The mounting of the terminal block housing 91 will be described later.

  The connector housing 80 to be mounted on the housing mounting portion 70 is to which the mating connector C is fitted, and as shown in FIGS. 11 (A) and 11 (B) and FIGS. 12 (A) and 12 (B). A rectangular plate-like connector mounting portion 81 and a fitting hood portion 82 extending forward from the front surface of the connector mounting portion 81 are provided. The connector housing 80 is formed by molding an insulating synthetic resin. In addition, two tab openings 81 a into which the pair of tab terminals 33 shown in FIG. 1 can be inserted are provided at a substantially central portion of the connector mounting portion 81. Further, a stopper portion 81 b that protrudes in the left-right width direction with respect to the connector mounting portion 81 is provided at the upper end of the connector mounting portion 81. A pair of elastically deformable locking arms 83 having locking protrusions 83a at the lower ends are provided at both lower ends in the left-right width direction of the connector mounting portion 81 so as to extend downward. Further, at the substantially central portion of the rear surface of the connector mounting portion 81, as shown in FIGS. 12A and 12B, the second tab opening 81a surrounds the two tab openings 81a and protrudes rearward from the connector mounting portion 81. One protrusion 84 is provided. The first protrusion 84 includes a first protrusion 84a extending in the left-right width direction above the two tab openings 81a, a second protrusion 84b extending in the left-right width direction below the two openings 81a, and a first A third protrusion 84c that connects the left ends of the protrusion 84a and the second protrusion 84b, a fourth protrusion 84d that connects the right ends of the first protrusion 84a and the second protrusion 84b, and a first protrusion And a pair of fifth protrusions 84e extending upward from 84a.

  The housing mounting portion 70 includes a substantially rectangular receiving groove 71 that can receive the connector mounting portion 81 of the connector housing 80. As shown in FIGS. 7 to 9, the receiving groove 71 is formed to extend downward from the upper end of the housing mounting portion 70 so that the upper portion is open, and the connector mounting portion 81 is formed in the opened receiving groove 71. It is received from the top to the bottom.

Further, as shown in FIGS. 2, 3, and 7 to 9, the receiving groove 71 is formed in the connector mounting portion 81 at both lower ends in the left-right width direction when the connector mounting portion 81 is received. A pair of locking portions 72 are formed in which the locking protrusions 83a of the pair of locking arms 83 are locked. Specifically, each locking portion 72 is formed by a locking opening into which the locking projection 83a enters.
Further, the front end wall 41 of the lower case 40 provided with the housing mounting portion 70 is directed downward from the upper edge of the front end wall 41 to a portion corresponding to the housing mounting portion 70 as shown in FIGS. A cutout portion 41b is formed. When the connector mounting portion 81 of the connector housing 80 is received in the receiving groove 71, as shown in FIGS. 5 and 6, the first protrusion 84 (specifically, the second projection portion 84) provided in the connector mounting portion 81 is used. The protrusion 84b) is placed on the lower edge 41c of the notch 41b. When the upper case 50 is attached to the lower case 40, the first protrusion 84 is sandwiched between the lower edge 41c of the notch 41b and a later-described retaining protrusion 51a provided on the upper case 51, and the connector The movement of the housing 80 in the vertical direction is restricted.

  Next, the upper case 50 attached to the lower case 40 is formed by molding an insulating synthetic resin. As shown in FIGS. 1 to 10, the front case wall 51 and the front end wall 51 are formed on the front case wall 51. A rear end wall 52 disposed rearward, a right side wall 53 connecting the right end edges of the front end wall 51 and the rear end wall 52, and a left side wall 54 connecting the left end edges of the front end wall 51 and the rear end wall 52. The top end wall 51, the rear end wall 52, the right side wall 53, and the top wall 55 for connecting the tops of the left side wall 54 are provided. Each of the right side wall 53 and the left side wall 54 of the upper case 50 has a plurality of locking projections that are locked to a plurality of locking openings 47 formed in the right side wall 43 and the left side wall 44 of the lower case 40. 56 is provided. In addition, the front end wall 51 of the upper case has a retaining protrusion that clamps the first protrusion 84 of the connector housing 80 between the lower edge 41c of the notch 41b when the upper case 50 is attached to the lower case 40. A part 51a is provided.

  When assembling the electromagnetic contactor 1 configured in this way, first, as shown in FIGS. 7 to 9, the two tabs 81 of the electromagnetic contactor body 10 are inserted into the two tab openings 81a formed in the connector housing 80. The terminal 33 is inserted, and the connector housing 80 is attached to the electromagnetic contactor body 10. At this time, the connector housing 80 is attached to the electromagnetic contactor body 10 so that the fitting hood portion 82 of the connector housing 80 is positioned forward and the locking arm 83 is positioned downward. When the connector housing 80 is attached to the magnetic contactor body 10, the two tab terminals 33 are positioned in the fitting hood portion 82 of the connector housing 80 as shown in FIG. 9, and the connector housing 80 and the two tab terminals 33 Configure the connector.

  Next, as shown in FIG. 10, the electromagnetic contactor body 10 is accommodated in the lower case 40. At this time, the connector mounting portion 81 of the connector housing 80 is inserted from above the receiving groove 71 provided in the housing mounting portion 70 downward. Then, the locking projections 83 a of the pair of locking arms 83 formed on the connector mounting portion 81 are locked to the pair of locking portions 72 formed on the housing mounting portion 70. That is, each locking projection 83a enters the locking portion 72 formed with an opening. As a result, the connector housing 80 is prevented from coming off from the connector mounting portion 70 in the upward direction. Further, since the connector mounting portion 81 is received in the receiving groove 71, the connector housing 80 is prevented from coming off in the front-rear direction. Further, when the connector mounting portion 81 of the connector housing 80 is received in the receiving groove 71, as shown in FIGS. 5 and 6, the first protrusion 84 provided on the connector mounting portion 81 (specifically, The second protrusion 84b) is placed on the lower edge 41c of the notch 41b. Further, when the connector mounting portion 81 of the connector housing 80 is inserted from the upper side to the lower side of the receiving groove 71 provided in the housing mounting portion 70, the stopper portion 81 b of the connector housing 80 comes into contact with the upper surface of the housing mounting portion 70. Therefore, the downward movement of the connector housing 80 is restricted.

  Thereafter, as shown in FIGS. 1 to 5, the upper case 50 is attached to the lower case 40 from above the lower case 40 to cover the upper part of the electromagnetic contactor body 10. Thereby, the assembly of the magnetic contactor 1 is completed. At this time, the locking projection 56 of the upper case 50 is locked to the locking opening 47 of the lower case 40, and the upper case 50 is prevented from coming off. Further, as shown in FIGS. 5 and 6, the retaining protrusion 51a of the upper case 50 presses the fifth protrusion 84e of the first protrusion 84, and the connector between the lower edge 41c of the notch 41b. The first protrusion 84 of the housing 80 is sandwiched. Thereby, the vertical movement of the connector housing 80 is restricted.

When the mating connector C connected to the electric wire W connected to the external power source is advanced in the direction of the arrow in FIG. 1 and fitted into the mating hood portion 82 of the connector housing 80, the mating connector C is provided. The female contact contacts the tab terminal 33, and the external power source is connected to the electromagnetic coil 32.
Next, a second embodiment of the electromagnetic contactor according to the present invention will be described with reference to FIGS. 13 to 26 (A) and (B). In FIGS. 13 to 26A and 26B, the same members as those shown in FIGS. 1 to 12A and 12B are denoted by the same reference numerals, and the description thereof may be omitted. .

  The electromagnetic contactor 1 shown in FIG. 13 includes an electromagnetic contactor body 10 (see FIGS. 19 to 22) and a case 60 that accommodates the electromagnetic contactor body 10 in the same manner as the electromagnetic contactor 1 shown in FIG. It is configured. Here, the configuration of the electromagnetic contactor body 10 is the same as that of the electromagnetic contactor 10 constituting the electromagnetic contactor 1 shown in FIG. 1, and the case 60 constitutes the case of the electromagnetic contactor 1 shown in FIG. The configuration is the same as 60, and the description thereof is omitted.

  However, the tab terminals 33 shown in FIGS. 1 to 9 are not connected to both ends of the electromagnetic coil 32 of the electromagnetic contactor 10, but are connected to an external power source (not shown) as shown in FIGS. 13 and 23. A pair of metal-made tab terminals 34 with female threads to which the counterpart wire W (specifically, a crimp terminal T connected to the tip of the counterpart wire W) is connected are connected. As shown in FIG. 23, a female screw portion 34a is formed at the center of each female screw tab terminal 34. Both ends of the electromagnetic coil 32 are led out from openings 30b formed in the casing 30a of the electromagnet unit 30 shown in FIGS. 19 and 20, and as shown in FIG. Is connected.

  Further, in the electromagnetic contactor 1 shown in FIG. 1, the terminal block housing 91 can be mounted on the housing mounting portion 70 provided in the lower case 40. Unlike the connector housing 80 shown in FIG. 1, the terminal block housing 91 does not fit the mating connector C, and is connected to an external power source on the tab terminal 34 with a female screw connected to the electromagnetic coil 32 of the electromagnet unit 31. It is used when connecting the other wire W.

  Here, as shown in FIGS. 25 (A), (B), (C) and FIGS. 26 (A), (B), the terminal block housing 91 is a substantially rectangular substrate extending in the left-right width direction and the up-down direction. It has a portion 91a. A substantially rectangular plate-like terminal block mounting portion 91b that protrudes rearward is provided on the rear surface of the substrate portion 91a. As shown in FIGS. 16 and 17, the terminal block mounting portion 91 b is received in the receiving groove 71 formed in the housing mounting portion 70 from the upper side to the lower side of the opened receiving groove 71. Yes. Further, two pairs of side wall portions 91e protruding forward are provided on the front surface of the substrate portion 91a. And between each pair of side wall portions 91e, as shown in FIGS. 23, 25 (A), (B), (C) and FIGS. 26 (A), (B), the substrate portion 91a is penetrated. An attachment portion 91c for attaching the tab terminal 34 with a female screw is provided. Further, as shown in FIGS. 23 to 26 (A) and (B), a second projecting portion 91 d that protrudes rearward is provided at a substantially central portion of the rear surface of the terminal block mounting portion 91 b. Furthermore, as shown in FIGS. 23 to 26A and 26B, a retaining protrusion 91f that protrudes downward from the second protrusion 91d and enters the receiving groove 71 is provided below the second protrusion 91d. Is provided.

  As shown in FIGS. 23 to 26 (A) and 26 (B), the tab terminal 34 with the female thread connected to the electromagnetic coil 32 has an upper surface between the pair of side wall portions 91e. It attaches to the attachment part 91c of the terminal block housing 91 from the back of the terminal block housing 91 so that it may be exposed. Also, the female threaded tab terminal 34 attached to the terminal block housing 91 has a threaded terminal 92 from above the female threaded tab terminal 34 as shown in FIGS. It is designed to be screwed together. The screwed terminal 92 includes a terminal plate 92a and a male screw 92b attached to the terminal plate 92a and screwed into the female screw portion 34a of the tab terminal 34 with female screw. The terminal block housing 91, the tab terminal 34 with the female screw, and the terminal 92 with the screw constitute a terminal block 90. Then, the crimp terminal T (see FIG. 13) connected to the tip of the counterpart electric wire W connected to the external power source is sandwiched between the tab terminal 34 with the female screw and the terminal plate 92a of the terminal 92 with the screw. Thus, the tab terminal 34 with a female screw is connected.

  When assembling the electromagnetic contactor 1 configured as shown in FIG. 13, first, as shown in FIGS. 23 to 26 (A) and (B), two female screws connected to the electromagnetic coil 32 are used. The attached tab terminal 34 is attached to the attachment portion 91c of the terminal block housing 91 from the rear of the terminal block housing 91 so that the upper surface of each female screw tab terminal 34 is exposed between the pair of side wall portions 91e. Next, the male screw 92 b of the screwed terminal 92 is screwed into the female screw part 34 a of the female screwed tab terminal 34 to fix the screwed terminal 92 to the female screwed tab terminal 34. Thereby, as shown in FIG. 21, the terminal block 90 is attached to the electromagnetic contactor body 10.

  Next, as shown in FIG. 22, the electromagnetic contactor body 10 is accommodated in the lower case 40. At this time, the terminal block mounting portion 91 b of the terminal block housing 91 is inserted from the upper side to the lower side of the receiving groove 71 provided in the housing mounting portion 70. Then, the retaining protrusion 91 f enters the receiving groove 71. Accordingly, the terminal block mounting portion 91b is received in the receiving groove 71, and the retaining protrusion 91f enters the receiving groove 71, so that the terminal block housing 91 is prevented from being detached in the front-rear direction. Further, when the terminal block mounting portion 91b of the terminal block housing 91 is received in the receiving groove 71, as shown in FIGS. 17 and 18, the second protrusion 91d provided on the terminal block mounting portion 91b is notched. It is mounted on the lower edge 41c of 41b.

  Thereafter, as shown in FIGS. 13 to 18, the upper case 50 is attached to the lower case 40 from above the lower case 40 to cover the upper part of the electromagnetic contactor body 10. Thereby, the assembly of the magnetic contactor 1 is completed. At this time, the locking projection 56 of the upper case 50 is locked to the locking opening 46 of the lower case 40, and the upper case 50 is prevented from coming off. Further, as shown in FIGS. 17 and 18, the retaining protrusion 51a of the upper case presses the second protrusion 91d, and the second protrusion of the terminal block housing 91 between the lower edge 41c of the notch 41b. The portion 91d is sandwiched. Thereby, the vertical movement of the terminal block housing 91 is restricted.

  Then, the threaded terminal 92 is removed from the female threaded terminal 94, and the crimp terminal T connected to the tip of the counterpart electric wire W connected to the external power source is advanced in the direction of the arrow shown in FIG. The crimp terminal T is disposed on the terminal 34 with the female screw, and the male screw 92a of the terminal 92 with the screw is screwed and fixed to the terminal 34 with the female screw. Thus, the crimp terminal T provided on the counterpart electric wire W is sandwiched between the terminal 34 b of the female screw 34 and the terminal plate 92 b of the screwed terminal 92 and connected to the terminal block 90, and an external power source is connected to the electromagnetic coil 32. It is connected.

  As described above, according to the electromagnetic contactor 1 according to the first embodiment and the second embodiment, the case 60 that houses the electromagnetic contactor 1 has the tab terminal 33 connected to the electromagnetic coil 32 of the electromagnet unit 31. The external power supply is connected to the connector housing 80 fitted to the mating connector C and the tab terminal 34 with a female screw connected to the electromagnetic coil 32 of the electromagnet unit 31, which is used when the mating connector C connected to the external power supply is connected. A housing mounting portion 70 that can be mounted on both the terminal block housing 91 and the terminal block housing 91 that is used when connecting the counterpart electric wire W connected to is provided. For this reason, both the connector housing 80 and the terminal block housing 91 fitted to the mating connector C can be attached to the case 60, and are connected to the tab terminal 33 connected to the electromagnetic coil 32 of the electromagnet unit 31 to an external power source. The electromagnetic connector can be used both for connecting the mating connector C and for connecting the mating wire W connected to the external power source to the tab terminal 34 with the female screw connected to the electromagnetic coil 32 of the electromagnet unit 31. The electromagnetic contactor 1 provided with the case 60 which accommodates a contactor main body can be provided. Thereby, when connecting the mating connector C connected to the external power source to the tab terminal 33 connected to the electromagnetic coil 32 of the electromagnet unit 31, and the tab terminal 34 with the female screw connected to the electromagnetic coil 32 of the electromagnet unit 31. There is no need to manufacture the case 60 separately when the counterpart wire W connected to the external power source is connected, and the manufacturing cost of the case 60 can be reduced.

In this electromagnetic contactor 1, the case 60 includes a lower case 40 that houses the electromagnetic contactor body 10, and an upper part that is attached to the lower case 40 and covers the upper side of the electromagnetic contactor body 10 that is housed in the lower case 40. Case 50 is formed. A housing mounting portion 70 is provided integrally with the lower case 40.
Accordingly, the case 60 can be provided with a simple configuration by configuring the case 60 for accommodating the electromagnetic contactor 1 with the lower case 40 and the upper case 50, and the housing mounting portion 70 is provided integrally with the lower case 40. Thus, the lower case 40 having the housing mounting portion 70 can be formed by integral molding, and the manufacturing cost of the case 60 having the housing mounting portion 70 can be reduced.

Further, in the electromagnetic contactor 1, the housing mounting portion 70 is provided on the outer surface 41 a of the front end wall 41 of the lower case 40, and is provided on the connector mounting portion 81 provided on the connector housing 80 and the terminal block housing 91. It has a receiving groove 71 that can receive both the terminal block mounting portion 91b . The receiving groove 71 is formed to extend downward from the upper end of the housing mounting portion 70 so that the upper portion is open, and is provided in the connector mounting portion 81 provided in the connector housing 80 and the terminal block housing 91. Both of the terminal block mounting portions 91b are received from the upper side to the lower side of the open receiving groove 71. Therefore, the connector housing 80 and the terminal block housing 91 are simply inserted into the receiving groove 71 from the upper side to the lower side by simply inserting the connector mounting portion 81 of the connector housing 80 and the terminal block mounting portion 91b of the terminal block housing 91 into the housing mounting portion. 70 can be easily mounted on the housing mounting portion 70 of the connector housing 80 and the terminal block housing 91. Further, when the connector mounting portion 81 of the connector housing 80 and the terminal block mounting portion 91 b of the terminal block housing 91 are mounted to the housing mounting portion 70, the connector mounting portion 81 and the terminal block mounting portion 91 b are the upper ends of the housing mounting portion 70. Therefore, the connector housing 80 and the terminal base housing 91 can be restricted from moving in the front-rear direction.

Further, in the electromagnetic contactor 1, the receiving groove 71 is engaged with a locking arm 83 provided on the connector mounting portion 81 when the connector mounting portion 81 provided on the connector housing 80 is received. A portion 72 is formed. As a result, it is possible to prevent the connector housing 80 from coming off with respect to the housing mounting portion 70.
In the electromagnetic contactor 1, the front end wall 41 of the lower case 40 is formed with a notch 41 b that is notched downward from the upper edge of the front end wall 41 at a portion corresponding to the housing mounting portion 70. Yes. And when the connector mounting part 81 provided in the connector housing 80 is received in the receiving groove 71, the 1st projection part 84 formed in the connector mounting part is mounted on the lower edge 41c of the notch part 41b. It is like that. Further, when the upper case 50 is attached to the lower case 40, the first protrusion 84 is sandwiched between the lower edge 41c of the notch 41b and the retaining protrusion 51a provided on the upper case 50, The vertical movement of the connector housing 80 is restricted. Thereby, it is possible to reliably prevent the connector housing 80 from coming off from the housing mounting portion 70 in the vertical direction.

  In the magnetic contactor 1, when the terminal block mounting portion 91b provided in the terminal block housing 91 is received in the receiving groove 71, the second protrusion 91d formed on the terminal block mounting portion 91b is notched 41b. Is placed on the lower edge 41c. When the upper case 50 is attached to the lower case 40, the second protrusion 91d is sandwiched between the lower edge 41c of the notch 41b and the retaining protrusion 51a provided on the upper case 50, The movement of the terminal block housing 91 in the vertical direction is restricted. Accordingly, it is possible to reliably prevent the terminal block housing 91 from coming off from the housing mounting portion 70 in the vertical direction.

As mentioned above, although embodiment of this invention has been described, this invention is not limited to this, A various change and improvement can be performed.
For example, the case 60 is not limited to the case composed of the lower case 40 and the upper case 50 as long as the case 60 can be divided.
Further, the housing mounting portion 70 may be provided not in the lower case 40 but in the upper case 50 when the case 60 is constituted by the upper case 50 and the case 60 as in the present embodiment.

Furthermore, the housing mounting portion 70 is not limited to being provided on the outer surface 41 a of the front end wall 41 of the lower case 40, and may be provided on the outer surface of the rear end wall 42, the outer surface of the right side wall 43, and the outer surface of the left side wall 44. .
Further, the cutout portion 41 b is not limited to being formed on the front end wall 41 of the lower case 40 as long as it is a portion corresponding to the housing mounting portion 70.
Further, in the electromagnetic contactor 1 shown in FIG. 13, the crimp terminal T connected to the tip of the counterpart electric wire W connected to the external power source is connected to the terminal block 90, but is connected to the external power source. The mating electric wire W itself may be connected to the terminal block 90.

DESCRIPTION OF SYMBOLS 1 Electromagnetic contactor 10 Electromagnetic contactor main body 20 Contact mechanism part 21 Contact mechanism 30 Electromagnet unit part 30a Case 31 Electromagnet unit 32 Electromagnetic coil 33 Tab terminal 34 Tab terminal with female screw 34a Female screw part 40 Lower case 41 Front end wall (outer wall) )
42 Rear end wall (outer wall)
43 Right side wall (outer wall)
44 Left side wall (outer wall)
45 Bottom wall (outer wall)
46 Mounting portion 47 Locking opening 50 Upper case 51 Front end wall 51a Retaining protrusion 52 Rear end wall 53 Right side wall 54 Left side wall 55 Top wall 56 Locking protrusion 60 Case 70 Housing mounting portion 71 Receiving groove 72 Locking portion 80 Connector housing 81 Connector mounting portion 81a Tab opening 82 Fitting hood portion 83 Locking arm 83a Locking projection 84 First projection 84a First projection 84b Second projection 84c Third projection 84d Fourth projection 84e First 5 projections 90 terminal block 91 terminal block housing 91a board portion 91b terminal block mounting portion 91c mounting portion 91d second projection portion 91e side wall portion 91f retaining projection 92 screwed terminal 92a terminal plate 92b male screw portion C mating connector W mating wire

Claims (7)

An electromagnetic contactor comprising an electromagnetic contactor body having a contact mechanism part provided with a contact mechanism and an electromagnet unit part provided with an electromagnet unit for driving the contact mechanism, in a case,
The case is used when a mating connector connected to an external power source is connected to a tab terminal connected to the electromagnetic coil of the electromagnet unit, a connector housing fitted to the mating connector, and an electromagnetic coil of the electromagnet unit both the terminal block housing for use when connecting a mating wire connected to an external power source connected to the tab terminal with the female screw comprises a housing mounting portion mountable to,
The electromagnetic contactor characterized in that the housing mounting portion has a receiving groove capable of receiving both a connector mounting portion provided in the connector housing and a terminal block mounting portion provided in the terminal block housing . .   The case includes a lower case that houses the electromagnetic contactor body, and an upper case that is attached to the lower case and covers the upper side of the electromagnetic contactor body that is housed in the lower case. The electromagnetic contactor according to claim 1, wherein the electromagnetic contactor is provided integrally with the lower case. Electromagnetic contactor according to claim 2 wherein the housing mounting portion, characterized by the Turkey provided on the outer surface of the outer wall of the lower case.   The receiving groove is formed to extend downward from the upper end of the housing mounting portion so that the upper portion is open, and the connector mounting portion provided in the connector housing and the terminal block mounting portion provided in the terminal block housing The electromagnetic contactor according to claim 3, wherein both of the electromagnetic contactors are received from the upper side to the lower side of the opened receiving groove. Wherein the receiving groove, characterized in that the locking portion locking arm provided in the connector mounting unit upon receiving the connector mounting portion provided on the connector housing are locked are formed The electromagnetic contactor according to claim 4.   The outer wall of the lower case is formed with a notch portion that is notched downward from the upper edge of the outer wall at a portion corresponding to the housing mounting portion, and the connector mounting provided in the connector housing in the receiving groove When the portion is received, the first protrusion formed on the connector mounting portion is placed on the lower edge of the notch, and when the upper case is attached to the lower case Further, the first protrusion is sandwiched between a lower edge of the notch and a retaining protrusion provided on the upper case, so that the vertical movement of the connector housing is restricted. The electromagnetic contactor according to claim 4 or 5.   When the terminal block mounting portion provided in the terminal block housing is received in the receiving groove, the second protrusion formed on the terminal block mounting portion is placed on the lower edge of the notch portion. When the upper case is attached to the lower case, the second protrusion is sandwiched between the lower edge of the notch and the retaining protrusion provided on the upper case, The electromagnetic contactor according to claim 6, wherein the vertical movement of the terminal block housing is restricted.

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