JP2001217046A - One-piece connector relay for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a one-piece connector relay for an air conditioner in which wiring such as lead wires around the relay can be drastically reduced and the working process at assembly as well as the size of the interior equipment is reduced. SOLUTION: The connector relay comprises a body case 1 on which the following items are incorporated in one body; a Fast on terminal 2, 3, a connector 6 for exterior equipment connection, an elastic source line ACL 1, 2 provided between the Fast on terminal 2, 3 and the connector 6, a relay 8 which opens and shuts the above electric source ACL 1, 2 in compliance with the control signal of the interior equipment, and a fuse 5 which is provided in the route of the above control signal and melts at the abnormal heating of the connector 6 and the surrounding parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector-integrated relay for an air conditioner provided between an indoor unit and an outdoor unit of an indoor / outdoor separation type air conditioner.

[0002]

2. Description of the Related Art Conventionally, an indoor unit is connected to a commercial AC power supply,
There is an air conditioner that supplies a power supply voltage from the indoor unit to the outdoor unit. In the case of this air conditioner, a power supply line is formed between the indoor unit and the outdoor unit through a crossover, and the power supply line is opened and closed by a relay contact on the indoor unit side to supply power supply voltage to the outdoor unit. To control.

[0003] The relay is mounted on a circuit board of an indoor unit, and the board is mounted on a housing of the indoor unit. The relay is connected to an indoor power outlet via a power cord. Further, a connector for connecting a crossover is provided on the housing of the indoor unit separately from the circuit board, and the connector and the relay are connected by a lead wire.

A thermal fuse is provided in the vicinity of the connector, and when the connector or its peripheral portion generates abnormal heat due to connection failure of a crossover, the thermal fuse is blown. Due to the blowing of the thermal fuse, the energization of the relay becomes impossible, and the supply of the power supply voltage to the outdoor unit is forcibly cut off.

[0005]

In the above-mentioned air conditioner, the relay and the connector are arranged at different places.
Since there is a lead wire connecting the relay and the connector,
The area around the relay becomes complicated. For this reason, there are problems that the number of work steps at the time of assembling the indoor unit is increased, and downsizing of the indoor unit is restricted.

[0006] The present invention has been made in view of the above circumstances,
The purpose is to significantly reduce the number of wires such as lead wires around the relay, thereby reducing the number of work processes when assembling the indoor unit and reducing the size of the indoor unit. An object of the present invention is to provide a relay integrated with a machine connector.

[0007]

According to a first aspect of the present invention, there is provided an air conditioner connector integrated relay, comprising: a power connection terminal; an outdoor unit connection connector; a power connection terminal; and the connector portion. And a relay that opens and closes the energizing path according to a control signal of the indoor unit, and a relay that is provided in the flow path of the control signal and that is blown when abnormal heat is generated in the connector part and its peripheral part. The temperature fuse to be used is provided integrally with the main body case.

[0008] The air conditioner connector-integrated relay according to the second aspect of the present invention is the invention according to the first aspect, wherein the power supply connection terminal is limited. That is, the power connection terminal is a faston terminal to which a power cord is connected, and is provided on the peripheral surface of the main body case.

[0009] In a third aspect of the present invention, there is provided an air conditioner connector integrated relay according to the first aspect, wherein a plurality of wiring pins are provided in the main body case. These wiring pins are electrically connected to a power supply connection terminal, a connector section, a conduction path, a relay, and a thermal fuse, and are inserted into the wiring board and connected by soldering.

In the air conditioner connector integrated relay according to the fourth aspect of the present invention, the main body case is limited in the first aspect of the invention. That is, the main body case provides a mutual wiring connection between the power supply connection terminal, the connector section, the conduction path, the relay, and the thermal fuse, and is connected to the indoor unit by wiring.

[0011]

[1] Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. 1 (a), 1 (b) and 1 (c), reference numeral 1 denotes a main body case of a connector-integrated relay for an air conditioner. Faston terminals 2 and 3, which are power connection terminals, are provided in the concave portion 1a so as to protrude upward in parallel with each other. A power cord 23 described later is connected to the faston terminals 2 and 3. Also,
A fuse cover (lid) 4 is provided in the recess 1 a so as to be openable and closable.
Is housed.

One side 1 in the longitudinal direction of the main body case 1
b, a connector section 6 for connecting an outdoor unit (for connecting a crossover) is provided. The connector section 6 has terminals 6a, 6b, and 6c to which a connecting wire (power supply line and control communication serial signal line) can be inserted and connected. This connector part 6
The reset button 7 is provided on a slope formed from one side surface 1b where the is provided to the upper surface. Crossover terminal 6
a, 6b, 6c are connected to terminals 6a, 6b, 6c
The connection can be completed simply by inserting the tip of the crossover into the hole. When disconnecting the crossover, the end of the crossover may be pulled out from the holes of the terminals 6a, 6b, 6c while pressing the reset button 7.

A plurality of wiring pins 10, 11, 12, 13, 14, 15, 16 are protruded from the lower surface of the main body case 1.
Are electrically connected as shown in FIG.

That is, a relay 8 is provided, and wiring pins 10 and 11 are provided at positions sandwiching the coil 8c of the relay 8. Both ends of the coil 8c are connected to the wiring pins 10 and 11. An energizing path (hereinafter, referred to as a power supply line) ACL1 is provided by a conductive pattern from the wiring pin 12 to the terminal 6a of the connector section 6, and the normally open contact 8a of the relay 8 is inserted into the power supply line ACL1. From the wiring pins 13 to the terminals 6 of the connector 6
An electric current path (hereinafter, referred to as a power supply line) ACL2 formed by a conductive pattern is provided in the area b. Wiring pin 1
4 and 15 between the conductive paths by the conductive pattern (hereinafter, referred to as
A control signal line CL is provided, and a thermal fuse 5 is inserted into the control signal line CL. An energization path (hereinafter, referred to as a serial signal line) SL formed by a conductive pattern is provided from the wiring pin 16 to the terminal 6c of the connector section 6.

FIG. 3 shows the appearance of the main body case 1.
Wiring pins 10, 11, 12, 13, 1 of body case 1
4, 15 and 16 are inserted and soldered and connected to the wiring board 20 which is connected to the indoor unit. This state is shown in FIG.
Is shown in The wiring board 20 is connected to a connector 21 of a harness derived from an indoor unit, in addition to the main body case 1. Thus, the main body case 1 is connected to the wiring board 20.
The relay integrated with an air conditioner connector of the electric circuit shown in FIG.

First, the connector 21 is connected to the terminals 21a and 21a.
b, 21c, 21d, and 21e. This connector 2
The control signal line CL is connected between the terminals 21a and 21b, and the coil 8c of the relay 8 and the thermal fuse 5 are connected to the control signal line CL. The power line ACL1 is connected between the terminal 21c of the connector 21 and the terminal 6a of the connector section 6, and the faston terminal 3 is connected to the power line ACL1. In the power line ACL1, a normally open contact 8a of the relay 8 is inserted at a position between the faston terminal 3 and the terminal 6a. The power line ACL2 is connected between the terminal 21d of the connector 21 and the terminal 6b of the connector section 6, and the faston terminal 2 is connected to the power line ACL2. Terminal 21e of connector 21 and connector portion 6
And the terminal 6c is connected to the serial signal line SL.

The connector 21 is connected to an indoor unit circuit board 23 via a harness 22. The harness 22 includes two control signal lines CL and two power supply lines ACL1,
2 and one serial signal line SL. The connector section 6 is connected to the outdoor unit circuit board 26 via the connecting wire 25. The crossover line 25 has two power supply lines ACL.
1, 2, and one serial signal line SL.

In the air conditioner connector-integrated relay having such a configuration, the power cord 24 is connected to the faston terminals 2 and 3. Plug 2 at the end of power cord 24
When 4a is connected to the outlet of the commercial AC power supply in the room, the power supply voltage is supplied to the indoor unit circuit board 23 via the power supply lines ACL1 and ACL2 (and the harness 22). Thereby, the indoor unit operates.

An indoor control section (not shown) is mounted on the indoor unit circuit board 23. When a control signal of logic "1" is output from the indoor control section, the relay 8 is energized. With this bias, the normally open contact 8a closes, and the power supply voltage is supplied to the outdoor unit circuit board 26 via the power supply lines ACL1 and ACL2 (and the crossover 25). This allows the outdoor unit to operate.

When the control signal from the indoor control section becomes logic "0", the relay 8 is deactivated. Due to this deenergization, the normally open contact 8a opens, and the supply of the power supply voltage to the outdoor unit circuit board 26 is cut off. This makes the outdoor unit inoperable.

An outdoor controller (not shown) is mounted on the outdoor unit circuit board, and data transmission via the serial signal line SL is performed between the outdoor controller and the indoor controller of the indoor unit circuit board 23. Mutually done. By this data transmission, the operation of the outdoor unit is controlled by the indoor unit, and the operation state of the outdoor unit is notified to the indoor unit.

The connector 6 may be disconnected due to poor connection of the crossover 25 or the like.
Alternatively, if the peripheral portion generates abnormal heat, the thermal fuse 5 is blown. When the thermal fuse 5 is blown, the control signal line CL, which is a flow path of the control signal, is cut off, and the relay 8 is deenergized. By this deenergization, the normally open contact 8a opens, and the supply of the power supply voltage to the outdoor unit circuit board 26 is forcibly cut off.

As described above, the faston terminals 2 and 3, the thermal fuse 5, the connector 6, and the respective current paths (the power line A
CL1, CL2, the serial signal line SL, the control signal line CL), and the relay 8 are provided integrally with the main body case 1, so that the number of wires such as lead wires around the relay 8 can be greatly reduced. Accordingly, it is possible to reduce the number of work processes at the time of assembling the indoor unit and to reduce the size of the indoor unit.

[2] A second embodiment will be described. As shown in FIG. 6, faston terminals 2 and 3 are provided on one side surface 1c of the main body case 1 in the lateral direction. Other configurations and operations are the same as those of the first embodiment, and a description thereof will be omitted.

[3] A third embodiment will be described. As shown in FIG. 7, faston terminals 2 and 3 are provided on the lower surface of main body case 1. Other configurations and actions are the first
The embodiment is the same as that of the first embodiment, and the description thereof is omitted.

[4] A fourth embodiment will be described. As shown in FIG. 8, faston terminals 2 and 3 are provided on the other side surface 1d of the main body case 1 in the lateral direction. Other configurations and operations are the same as those of the first embodiment, and a description thereof will be omitted.

[5] A fifth embodiment will be described. As shown in FIG. 9, recesses 1e are respectively formed at positions corresponding to the faston terminals 2 and 3 in the upper surface recess 1a of the main body case 1, and the faston terminals 2 and 3 are respectively provided in the recesses 1e. In this case, the tips of the faston terminals 2 and 3 are set at substantially the same height as the upper surface of the main body case 1. Since there is no protrusion from the upper surface, it is effective for downsizing the indoor unit. Other configurations and operations are the same as those of the first embodiment, and a description thereof will be omitted.

[6] A sixth embodiment will be described. As shown in FIG. 10, faston terminals 2 and 3 are provided on the other side surface 1f of the main body case 1 in the lateral direction.
Other configurations and operations are the same as those of the first embodiment, and a description thereof will be omitted.

[7] A seventh embodiment will be described. As shown in FIG. 11, faston terminals 2 and 3 are provided on the other side surface 1d in the longitudinal direction of the main body case 1.
Other configurations and operations are the same as those of the first embodiment, and a description thereof will be omitted.

[8] An eighth embodiment will be described. In FIG. 12, reference numeral 31 denotes a main body case of an air conditioner connector-integrated relay, and a connector 4 for connecting a power cord.
0, a connector unit 50 for connecting an outdoor unit (for connecting a crossover);
A connector section 60 for connecting an indoor unit (for connecting a harness) is provided. The connector section 40 has screw-type power connection terminals 41, 42, 43. This power connection terminal 4
1, 42, and 43 are three-wire type (two power lines ACL1,
2, and one power line 27 for the ground line EL)
Are connected by screws, respectively, and the plug 27a at the end of the power cord 27 is connected to a power outlet.

The connector section 50 includes a screw-type terminal 5.
1, 52, 53 and 54. These terminals 51, 52,
The connecting wires (two power supply lines ACL 1 and 2, one ground line EL and one serial signal line SL) 25 from the outdoor unit circuit board 26 are screw-connected to 53 and 54, respectively.

The connector section 60 has a screw-type terminal 6.
1,62,63,64,65,66. The terminals 61, 62, 63, 64, 65, 66 are connected to the harness (two power lines ACL1, ACL2,
One earth line EL, one serial signal line S
L and two control signal lines CL) 25 are connected by screwing.

Then, in the main body case 31, the terminal 6
1 and a terminal 41, a power line ACL1 is provided,
The normally open contact 8 of the relay 8 between the terminal 41 and the terminal 51
The same power line ACL1 is provided via a. A power supply line ACL2 is provided between the terminal 62 and the terminal 42, and the power supply line AC2 is provided between the terminal 42 and the terminal 52.
L2 is provided.

An earth line EL is provided between the terminals 63 and 43, and the earth line EL is provided between the terminals 43 and 53. Terminal 64 and terminal 54
Are provided with a serial signal line SL. The coil 8 of the relay 8 is connected to the terminal 65 via the thermal fuse 5a.
The other end of the coil 8c is connected to the terminal 66 via the thermal fuse 5b. The thermal fuse 5a is provided in the vicinity of the connector section 40 and is blown when the connector section 40 or its peripheral portion generates abnormal heat due to a connection failure of the power cord 27 or the like. Thermal fuse 5b
Is provided in the vicinity of the connector portion 50 and is blown when the connector portion 50 or its peripheral portion generates abnormal heat due to poor connection of the crossover 25 or the like.

As described above, the power supply connection terminal 40, the connector sections 50 and 60, the temperature fuses 5a and 5b, the respective current paths (the power supply lines ACL1 and ACL2, the serial signal line SL,
By integrally providing the ground line EL, the control signal line CL), and the relay 8 in the main body case 31, wiring such as lead wires around the relay 8 can be significantly reduced. Accordingly, it is possible to reduce the number of work processes at the time of assembling the indoor unit and to reduce the size of the indoor unit. In particular, since the mutual wiring connection of each part in the main body case 31 is covered by the main body case 31 itself, the wiring pins as in the first embodiment are unnecessary, and the external wiring board is also unnecessary. There are advantages such as further downsizing.

[9] A ninth embodiment will be described. In FIG. 13, reference numeral 32 denotes a main body case of an air conditioner connector integrated relay, and a connector portion 4 for connecting a power cord.
0, a connector unit 50 for connecting an outdoor unit (for connecting a crossover);
Wiring pins 71, 72, 73, 74, 75 and 76 are provided. The connector section 40 has screw-type power connection terminals 41, 42, 43. The connector unit 50 has screw-type terminals 51, 52, 53, and 54.

A power supply line ACL1 is provided between the wiring pin 71 and the terminal 41, and the power supply line AC1 is provided between the terminal 41 and the terminal 51 via the normally open contact 8a of the relay 8.
L1 is provided. A power line ACL2 is provided between the wiring pin 72 and the terminal 42, and the power line ACL2 is provided between the terminal 42 and the terminal 52.

An earth line EL is provided between the wiring pin 73 and the terminal 43, and the earth line EL is provided between the terminal 43 and the terminal 53. Wiring pin 7
4 and a terminal 54, a serial signal line SL is provided. One end of the coil 8 c of the relay 8 is connected to the wiring pin 75, and the other end of the coil 8 c is connected to the thermal fuse 5.
a, 5b are connected to the wiring pin 76 via the series.

The wiring pins 71, 72, 73, 74, 7
Reference numerals 5 and 76 correspond to the connector section 60 in the eighth embodiment. The wiring pins 71, 72, 73, 74, 7
The harness 22 from the indoor unit circuit board 23 is connected to 5,76.

As described above, the power supply connection terminal 40, the connector sections 50 and 60, the temperature fuses 5a and 5b, the respective current paths (the power supply lines ACL1 and ACL2, the serial signal line SL,
By integrally providing the ground line EL, the control signal line CL), and the relay 8 in the main body case 32, it is possible to greatly reduce wiring such as lead wires around the relay 8. Accordingly, it is possible to reduce the number of work processes at the time of assembling the indoor unit and to reduce the size of the indoor unit. In particular, since the mutual wiring connection of each part in the main body case 32 is covered by the main body case 32 itself, an external wiring board as in the first embodiment is unnecessary, and further miniaturization can be achieved. There are advantages. [10] In addition, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention.

[0041]

As described above, according to the present invention, it is possible to greatly reduce the number of wires such as lead wires around the relay, thereby reducing the number of working steps in assembling the indoor unit. It is possible to provide an air conditioner connector integrated relay in which the indoor unit can be downsized.

[Brief description of the drawings]

FIGS. 1A and 1B show a configuration of a main body case according to a first embodiment, where FIG. 1A is a view from above, FIG. 1B is a view from the front, and FIG. 1C is a view from the side. .

FIG. 2 illustrates wiring pins, components, and the like according to the first embodiment.
The figure which shows the connection relationship of an energization path.

FIG. 3 is a perspective view illustrating a configuration of a main body case according to the first embodiment.

FIG. 4 is a perspective view showing a configuration of a main body case and a wiring board according to the first embodiment.

FIG. 5 is a block diagram showing a configuration of an electric circuit according to the first embodiment.

FIGS. 6A and 6B show a configuration of a main body case according to the second embodiment, wherein FIG. 6A is a view from above, FIG. 6B is a view from the front, and FIG. 6C is a view from the side. .

FIGS. 7A and 7B show a configuration of a main body case according to a third embodiment, where FIG. 7A is a view from above, FIG. 7B is a view from the front, and FIG. 7C is a view from the side. .

FIGS. 8A and 8B show the configuration of a main body case according to a fourth embodiment, wherein FIG. 8A is a view from above, FIG. 8B is a view from the front, and FIG. 8C is a view from the side. .

9A and 9B show a configuration of a main body case according to a fifth embodiment, wherein FIG. 9A is a view from above, FIG. 9B is a view from the front, and FIG. 9C is a view from the side. .

FIGS. 10A and 10B show a configuration of a main body case according to a sixth embodiment, wherein FIG. 10A is a view from above, FIG. 10B is a view from the front, and FIG. 10C is a view from the side. .

11A and 11B show a configuration of a main body case according to a seventh embodiment, wherein FIG. 11A is a view from above, FIG. 11B is a view from the front, and FIG. 11C is a view from the side. .

FIG. 12 is a block diagram showing a configuration of an electric circuit according to an eighth embodiment.

FIG. 13 is a block diagram showing a configuration of an electric circuit according to a ninth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Body case 2, 3 ... Faston terminal (terminal for power supply connection) 5 ... Thermal fuse 6 ... Connector part 8 ... Relay 11, 12, 13, 14, 15, 16 ... Wiring pin 20 ... Wiring board 21 ... Connector 22 harness 23 indoor circuit board 24 power cord 25 crossover 26 outdoor circuit board

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H01H 50/14 H01H 50/14 S (72) Inventor Taizo Kodama 336 Tatehara, Fuji City, Shizuoka Prefecture Toshiba Carrier Corporation (72) Inventor Hiroaki Kuroyagi 336 Tatehara, Fuji City, Shizuoka Prefecture Toshiba Carrier Co., Ltd. F-term (reference) 3L051 BJ10 3L061 BA07 5E021 FA03 FB21 FC40 MA11 MA24

Claims (4)

[Claims] A power supply terminal; a connector unit for connecting an outdoor unit; a current path provided between the power supply terminal and the connector unit; A relay that opens and closes an electric circuit, a temperature fuse that is provided in the flow path of the control signal and that is blown when abnormal heat is generated in the connector portion and its peripheral portion, and a power supply connection terminal, a connector portion, a current path, a relay,
A connector integrated relay for an air conditioner, comprising: and a main body case integrally provided with a thermal fuse. 2. The relay integrated with an air conditioner connector according to claim 1, wherein the power connection terminal is a faston terminal to which a power cord is connected, and is provided on a peripheral surface of the main body case. A connector integrated relay for an air conditioner, characterized in that: 3. The air conditioner connector-integrated relay according to claim 1, wherein the power supply terminal, the connector, the current path, the relay, and the thermal fuse are provided on the main body case. An integrated connector relay for an air conditioner, further comprising a plurality of wiring pins that are electrically connected and inserted and soldered to a wiring board. 4. The air conditioner connector-integrated relay according to claim 1, wherein the main body case includes a power supply terminal, the connector, the current path, the relay, and the thermal fuse. A connector-integrated relay for air conditioners characterized by providing wiring connections and being connected to indoor units.