JP6201811B2 - Electromagnetic relay - Google Patents

Description

  The present invention relates to an electromagnetic relay.

  The vehicle is provided with an electrical junction box that houses fuses and relays. A fuse, a relay, or the like housed in the electrical connection box is used by being inserted into a holding portion such as a fuse block provided in the electrical connection box so that it can be easily replaced.

  As a relay (electromagnetic relay) accommodated in such an electrical junction box, for example, there is one described in Patent Document 1. The electromagnetic relay described in Patent Document 1 has a configuration in which the terminal arrangement of the external connection terminals conforms to international standards such as ISO.

JP 2012-209056 A

  Various fuses and relays are housed in an electrical junction box mounted on the vehicle. Various electric circuit components mounted on the vehicle vary depending on the vehicle type. In view of this, it is conceivable to share an electric junction box so that various fuses and relays can be accommodated so as to correspond to each vehicle type. However, if various fuses and relays can be accommodated in the electrical junction box, a wasteful space increases and the size of the electrical junction box increases.

  In recent years, there has been an increasing demand for miniaturization of electrical junction boxes mounted on vehicles. However, as described above, if the electrical junction box is made common so that it can be used for each vehicle type, there is a demand for miniaturization of the electrical junction box. There is a problem that it becomes impossible to respond.

  Therefore, depending on the vehicle model, a method of inserting a relay into a holding unit of a fuse block into which a fuse is originally inserted can be considered. Thus, by using a general-purpose method such as inserting a relay in the holding portion of the fuse block, it is possible to effectively use the space of the electrical connection box, and it is possible to reduce the size of the electrical connection box.

  However, the relays and fuses housed in the electrical connection box are greatly different in the size of the casing, the number of external connection terminals, the terminal arrangement, and the terminal shape. Specifically, since the relay has a more complicated structure than the fuse, the relay housing is larger than the fuse. Further, the number of external connection terminals of the fuse is two, whereas the number of external connection terminals of a general relay is about 4-6. Moreover, like the electromagnetic relay described in Patent Document 1, the terminal arrangement and terminal shape of the external connection terminals of the electromagnetic relay are greatly different from those of the fuse external connection terminals. For this reason, there has been a problem that general-purpose use such as inserting a relay into a holding portion of a fuse box provided in the electrical junction box cannot be used.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an electromagnetic relay that can be used more generally.

In order to achieve the above object, an invention according to claim 1 is an electromagnetic relay having a main body (10) and a plurality of external connection terminals (11) and housed in a housing case (4). In the housing case, a plurality of fuse insertion holes (41) for inserting fuses are arranged at regular intervals, and two electrodes provided in the fuse (2) are respectively provided in the plurality of fuse insertion holes. Two terminals (50) that contact each of the terminals (21) are provided, and the plurality of external connection terminals are a plurality of fuse insertion holes provided in at least two adjacent fuse insertion holes. It is fixed to the main body so that the terminal arrangement is in contact with the terminals, and in each of the plurality of fuse insertion holes, a fuse in which a circuit component is arranged is inserted in a space between two electrode terminals. Has become Of the external connection terminals, the space between the two external connection terminals which are inserted into the same fuse insertion hole, is characterized by being arranged circuit components.

  According to such a configuration, the plurality of fuse insertion holes (41) for inserting the fuses are arranged at regular intervals in the housing case, and the plurality of fuse insertion holes are respectively connected to the fuses (2). Two terminals (50) that contact each of the two electrode terminals (21) provided are provided, and the plurality of external connection terminals are at least two adjacent fuse insertion holes among the plurality of fuse insertion holes. Since the terminal arrangement is in contact with a plurality of terminals provided in the plurality of external connection terminals, the plurality of external connection terminals can be brought into contact with the plurality of terminals provided in at least two adjacent fuse insertion holes. An electromagnetic relay that can be used in various ways can be provided.

Further, each of the fuse insertion hole of the multiple, the space between the two electrode terminals are adapted to fuse circuit components are disposed is inserted, among the plurality of external connection terminals of the electromagnetic relay, Circuit components are arranged in a space between two external connection terminals that are inserted into the same fuse insertion hole .

  According to such a configuration, since the circuit component is arranged in the space between the two external connection terminals inserted into the same fuse insertion hole, the space between the two external connection terminals is effectively used in the same manner as the fuse. It is possible to reduce the height of the main body.

In order to achieve the above object, an invention according to claim 3 is an electromagnetic relay having a main body portion (10) and a plurality of external connection terminals (11) and housed in a housing case (4). In the housing case, a plurality of fuse insertion holes (41) for inserting fuses are arranged at regular intervals, and two electrodes provided in the fuse (2) are respectively provided in the plurality of fuse insertion holes. Two terminals (50) that contact each of the terminals (21) are provided, and the plurality of external connection terminals are a plurality of fuse insertion holes provided in at least two adjacent fuse insertion holes. It is fixed to the main body so that the terminal arrangement is in contact with the terminal , and a protrusion is formed at the boundary between adjacent fuse insertion holes to individually hold the fuses inserted into the fuse insertion holes. And The main body has a recess for avoiding contact between the main body and the projection when the plurality of external connection terminals are brought into contact with the plurality of terminals provided in the plurality of fuse insertion holes. It is characterized by being formed.

  According to such a configuration, even if the protrusions for individually holding the fuses inserted into the fuse insertion holes are formed at the boundary between the adjacent fuse insertion holes, the main body part has a plurality of protrusions. When a plurality of external connection terminals are brought into contact with a plurality of terminals provided in the fuse insertion hole, a recess is formed to avoid contact between the main body and the protrusion. Can be

  In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in embodiment mentioned later.

It is a perspective view of the electromagnetic relay which concerns on one Embodiment of this invention. It is a top view of a fuse block. It is sectional drawing along the III-III line in FIG. It is sectional drawing along the IV-IV line in FIG. It is the figure which looked at the low profile fuse 2 from the arrow B direction in FIG. It is sectional drawing along the VI-VI line in FIG. It is the figure which looked at the electromagnetic relay 1 from the arrow B direction in FIG. It is sectional drawing along the VIII-VIII line in FIG. It is the figure showing arrangement | positioning of the external connection terminal when the electromagnetic relay 1 is seen from the arrow D direction in FIG.

  The perspective view of the electromagnetic relay 1 which concerns on one Embodiment of this invention is shown in FIG. FIG. 1 also shows the low-profile fuse 2 and the fuse block 4 corresponding to the housing case, along with the electromagnetic relay 1. The fuse block 4 is provided, for example, in an electrical connection box provided in the engine room of the vehicle. The housing 42 constituting a part of the fuse block 4 is made of resin, and is made of, for example, PBT, PP resin, or the like.

  Six fuse insertion holes 41 are formed in the fuse block 4 in the present embodiment. One low-profile fuse 2 can be inserted into each of these six fuse insertion holes 41.

  The six fuse insertion holes 41 formed in the fuse block 4 can be inserted with general low-profile fuses 2 conforming to the ISO standard.

  In the present embodiment, it is also possible to insert one electromagnetic relay 1 in two spaces of the fuse insertion holes 41 provided in the fuse block 4.

  Here, the left-right direction when the fuse block 4 is viewed from the arrow A direction in FIG. 1 is referred to as the X direction, the front-rear direction of the fuse block 4 is referred to as the Y direction, and the up-down direction of the fuse block 4 is referred to as the Z direction. I will do it.

  FIG. 2 shows a top view of the fuse block 4. As shown in the figure, six fuse insertion holes 41 are formed on the upper surface of the fuse block 4 at regular pitch intervals β. That is, on the upper surface of the fuse block 4, six fuse insertion holes 41 are arranged in a row in the X-axis direction so that when the low-profile fuse 2 is inserted into the fuse insertion hole 41, the low-profile fuses 2 are parallel to each other. They are arranged at regular intervals.

  A protrusion 42a is formed at the boundary between adjacent fuse insertion holes 41 to hold the low-profile fuses 2 individually. The protrusion 42a restricts the movement of the low profile fuse 2 in the X direction.

  FIG. 3 is a cross-sectional view taken along line III-III in FIG. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.

  As shown in FIG. 4, a tuning fork type female terminal 50 is provided inside the fuse insertion hole 41. The female terminal 50 is configured using a conductive member such as a copper alloy.

  As shown in FIG. 3, two tuning-fork type female terminals 50 as shown in FIG. 4 are provided inside one fuse insertion hole 41. That is, a pair of female terminals 50 are provided in the fuse insertion hole 41.

  One of the pair of female terminals 50 is continuous in the X direction shown in FIG. 1 between the plurality of fuse insertion holes 41. That is, one of the female terminals 50 included in the plurality of fuse insertion holes 41 is connected to each other via one bus bar (not shown) extending in the X direction shown in FIG. In addition, it is also possible to divide each connected female terminal 50 by punching the bus bar.

  A wire with a connector is connected to each female terminal 50 provided in each fuse insertion hole 41. The connection destination of the wire with the connector is different depending on the vehicle type and the like.

  In the present embodiment, not only one low-profile fuse 2 is inserted into each of the six fuse insertion holes 41, but also one electromagnetic relay 1 is inserted into two spaces of the fuse insertion holes 41. It is also possible. Further, it is possible to insert the low-profile fuse 2 into a part of the fuse insertion holes 41 and insert the electromagnetic relay 1 into another fuse insertion hole 41.

  Next, the configuration of the low profile fuse 2 will be described. The low profile fuse 2 is a blade type fuse used as an automotive fuse, and is a general fuse conforming to the ISO standard. FIG. 5 shows a view of the low-profile fuse 2 as seen from the direction of arrow B in FIG. FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG.

  The low profile fuse 2 has a fuse body 20 and a pair of electrode terminals 21. The fuse body 20 houses a fusible portion (not shown) that melts when a large current exceeding the rating flows. The low-profile fuse 2 is configured such that when a large current exceeding the rating flows between the pair of electrode terminals 21, the fusible portion melts and interrupts the current flowing between the pair of electrode terminals 21. The size and shape of each part of the pair of electrode terminals 21 of the low-profile fuse 2 conform to the ISO standard.

  As shown in FIGS. 3 and 4, when the low profile fuse 2 is inserted into the fuse insertion hole 41 from the opening C, each of the pair of electrode terminals 21 provided in the low profile fuse 2 becomes the fuse insertion hole. The female terminals 50 provided in 41 are pressed against each other.

  Next, the configuration of the electromagnetic relay 1 according to this embodiment will be described. The electromagnetic relay 1 is configured as an automobile relay. In FIG. 7, the figure which looked at the electromagnetic relay 1 from the arrow B direction in FIG. 1 is shown. FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG.

  As shown in FIGS. 7 and 8, the electromagnetic relay 1 has a relay main body (corresponding to a main body portion) 10 and four external connection terminals 11. The relay body 10 houses circuit components such as a coil that generates an electromagnetic force when energized, a movable contact that is driven by the coil, and a fixed contact that contacts and separates the movable contact (both not shown).

  The four external connection terminals 11 are configured using conductive members. Of the four external connection terminals 11, the first terminal is connected to one end of the coil winding, the second terminal is connected to one end of the coil winding, and the third terminal is connected to the movable contact, The fourth terminal is connected to the fixed contact.

  As described above, in the present embodiment, one electromagnetic relay 1 can be inserted into two spaces of the fuse insertion holes 41 provided in the fuse block 4.

  The four external connection terminals 11 include a pair of external connection terminals 11a and a pair of external connection terminals 11b. The pair of external connection terminals 11a and the pair of external connection terminals 11b have the same dimensions and shapes as the electrode terminals 21 of the low profile fuse 2 shown in FIGS. In addition, when the electromagnetic relay 1 is seen from the arrow D direction in FIG. 7, the arrangement of the external connection terminals 11a and 11b is the terminal arrangement as shown in FIG.

Also, as shown in FIG. 8, the pitch interval β ₀ between the pair of external connection terminals 11a and the pair of external connection terminals 11b is the fuse insertion hole formed on the upper surface of the fuse block 4 as shown in FIG. 41 is equal to the pitch interval β in the X direction.

  As described above, the four external connection terminals 11 are terminals that come into contact with a total of four female terminals 50 provided in the two adjacent fuse insertion holes 41 among the six fuse insertion holes 41 provided in the fuse block 4. It is an arrangement.

  In addition, as shown in FIG. 7, the electromagnetic relay 1 includes a space 12 between the terminals of the pair of external connection terminals 11 a and a space 12 between the terminals of the pair of external connection terminals 11 b as circuit component placement spaces. We are using.

  Further, the relay body 10 in the electromagnetic relay 1 has a recess 10 a that avoids the protrusion 42 a formed at the boundary of the adjacent fuse insertion hole 41 when the electromagnetic relay 1 is inserted into the fuse insertion hole 41 of the fuse block 4. Is formed.

  According to the above-described configuration, the fuse block 4 has a plurality of fuse insertion holes 41 for inserting fuses arranged at regular intervals, and each of the plurality of fuse insertion holes provided in the fuse 2 is arranged in two. Two terminals 50 are provided in contact with each of the electrode terminals 21, and the plurality of external connection terminals 11 are a plurality of the plurality of fuse insertion holes 41 provided in at least two adjacent fuse insertion holes 41. Therefore, the plurality of external connection terminals 11 can be brought into contact with the plurality of terminals 50 provided in at least two adjacent fuse insertion holes 41, which is more versatile. An electromagnetic relay that can be used can be provided.

  Further, among the plurality of external connection terminals 11 of the electromagnetic relay, the circuit component is arranged in the space between the two external connection terminals 11 inserted into the same fuse insertion hole 41. The space between the connection terminals can be used effectively, and the main body can be reduced in height.

  Even if the protrusions 42 a for individually holding the fuses to be inserted into the fuse insertion holes are formed at the boundary between the adjacent fuse insertion holes 41, the main body part 10 has a plurality of fuse insertion holes 41. When the plurality of external connection terminals 11 are brought into contact with the plurality of terminals 50 provided in the concave portion 10a for avoiding the contact between the main body portion 10 and the protrusion 42a, the main body portion is Can be reduced in height.

  The present invention is not limited to the above-described embodiment, and various modifications can be made as follows without departing from the spirit of the present invention.

  For example, in the above embodiment, as shown in FIG. 1, an example in which six fuse insertion holes 41 are arranged in a row in the fuse block 4 is shown. However, the number and arrangement of the fuse insertion holes 41 are not limited to this. It is not limited to examples.

  Further, in the above embodiment, a plurality of fuse insertion holes 41 into which the low-profile fuse 2 can be inserted are formed in the fuse block 4, and one electromagnetic relay 1 is inserted into two spaces of the fuse insertion holes 41. However, for example, one electromagnetic relay 1 may be inserted into three or more spaces in the fuse insertion hole 41.

  Further, in the above embodiment, a plurality of fuse insertion holes 41 into which the low-profile fuse 2 can be inserted are formed in the fuse block 4, and one electromagnetic relay 1 is inserted into two spaces of the fuse insertion holes 41. However, for example, a plurality of fuse insertion holes into which a fuse other than a low-profile fuse can be inserted are formed in the fuse block 4 such as a mini flat type fuse and a flat type fuse, and electromagnetic space is formed in the space of these fuse insertion holes. You may comprise so that the relay 1 may be inserted.

  Moreover, although the electromagnetic relay 1 which has the four external connection terminals 11 was demonstrated to the example in the said embodiment, it can also apply to the electromagnetic relay 1 which has the 5 or more external connection terminals 11, for example. For example, in the case of the electromagnetic relay 1 having six external connection terminals 11, the six external connection terminals 11 may be configured so as to be in a terminal arrangement in contact with each terminal provided in three adjacent fuse insertion holes. .

  In the above embodiment, a pair of male electrode terminals 21 provided in the low-profile fuse 2 and a plurality of male external connection terminals 11 provided in the electromagnetic relay 1 are connected to the fuse insertion hole of the fuse block 4. Although the structure which fits the female terminal 50 provided in 41 was shown, conversely, the fuse (for example, fusible link) which has a female type electrode, and the some provided in the electromagnetic relay 1 were shown. The female-type external connection terminal 11 may be configured to fit into a male-type terminal provided in the fuse insertion hole 41 of the fuse block 4.

DESCRIPTION OF SYMBOLS 1 Electromagnetic relay 2 Low profile fuse 4 Fuse block 10 Relay main body 10a Recessed part 11 External connection terminal 20 Fuse main body 21 Electrode terminal 41 Fuse insertion hole 42 Housing 50 Female terminal

Claims (3)

An electromagnetic relay having a main body (10) and a plurality of external connection terminals (11) and housed in a housing case (4),
In the housing case, a plurality of fuse insertion holes (41) for inserting fuses are arranged at regular intervals,
Each of the plurality of fuse insertion holes is provided with two terminals (50) in contact with each of two electrode terminals (21) provided in the fuse (2),
Wherein the plurality of external connection terminals of the plurality of fuses insertion hole is fixed to the main body portion so that the terminal arrangement in contact with the plurality of terminals provided on at least two adjacent fuse insertion hole ,
In each of the plurality of fuse insertion holes, a fuse in which a circuit component is arranged is inserted into a space between the two electrode terminals,
An electromagnetic relay , wherein circuit components are arranged in a space between two external connection terminals inserted into the same fuse insertion hole among the plurality of external connection terminals . Protrusions for individually holding the fuses inserted into the fuse insertion holes are formed at the boundaries between the adjacent fuse insertion holes,
The main body has a recess for avoiding contact between the main body and the projection when the plurality of external connection terminals are brought into contact with the plurality of terminals provided in the plurality of fuse insertion holes. The electromagnetic relay according to claim 1, wherein the electromagnetic relay is formed. An electromagnetic relay having a main body (10) and a plurality of external connection terminals (11) and housed in a housing case (4),
In the housing case, a plurality of fuse insertion holes (41) for inserting fuses are arranged at regular intervals,
Each of the plurality of fuse insertion holes is provided with two terminals (50) in contact with each of two electrode terminals (21) provided in the fuse (2),
Wherein the plurality of external connection terminals of the plurality of fuses insertion hole is fixed to the main body portion so that the terminal arrangement in contact with the plurality of terminals provided on at least two adjacent fuse insertion hole ,
Protrusions for individually holding the fuses inserted into the fuse insertion holes are formed at the boundaries between the adjacent fuse insertion holes,
The main body has a recess for avoiding contact between the main body and the projection when the plurality of external connection terminals are brought into contact with the plurality of terminals provided in the plurality of fuse insertion holes. The electromagnetic relay characterized by being formed .

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