JPH11173597A - Electric instrument box for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate wiring work and improve the workability of the wiring work by a method wherein a terminal table is arranged on the lower part of an air conditioner so as to be faced downward and access to the terminal table is permitted through a window opened at the lower part of the terminal table to connect cables to terminals. SOLUTION: A terminal table 6 can be seen from the lower part of an electric instrument box 2 through a window 7 and access to the terminal table 6 is permitted through the window 7 whereby the connecting and removing works of connecting cables 8 to and from the terminal table 6 are permitted at the lower part of the electric instrument box 2 without removing a fore lid 5. These works can be effected workably by the access from the lower part of the electric instrument box 2 especially under a condition that an air conditioner (indoor unit) is installed near the ceiling of a building or the like. On the other hand, an earth wire 11 is clamped to the bottom part of the electric instrument box 2 through an earth screw 9 whereby the connecting work and the removing work of the earth wire 11 can be effected at only the lower part of the lower surface of the electric instrument box 2 without removing the fore lid 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an air conditioner,
In particular, the present invention relates to an electric component box incorporated in an indoor unit.

[0002]

2. Description of the Related Art FIG. 8 shows a conventional mounting structure of an electric component box of an air conditioner. In FIG.
Is the housing of the air conditioner (indoor unit case)
2 is an electric component box, 103 is a terminal block provided in the electric component box 102, 108 is a front cover of the electric component box 102, 111
Indicates a heat exchanger.

FIG. 9 shows a peripheral structure of an electric component box of a conventional air conditioner. 9, reference numeral 101 denotes a housing of the air conditioner, 102 denotes an electric component box, 103 denotes a terminal block provided in the electric component box 102, 104 denotes a connection cable connected to the terminal block 103, and 105 denotes a connection cable. Denotes a ground terminal provided on the heat exchanger 111, 106 denotes a ground wire connected to the ground terminal 105 by a ground screw 107, and 109 denotes a stationary part of the housing 101 for fixing the upper side of the electric component box 102 to the housing 101. Each nail is shown.

[0004] The electric component box 102 is fixed to the housing 101 by immovable claws 109 and elastic claws 110. The connection cable 104 is inserted into the housing 101 from the rear part of the housing 101, is put in the electric component box 102, and is connected to the terminal block 103. The ground wire 106 is inserted into the housing 101 from the back of the housing 101, passes through the electrical component box 102, and is connected to the ground terminal 105 on the heat exchanger 111 by the ground screw 10.
7 screwed.

[0005]

In the conventional electrical component box of the air conditioner as described above, the terminal block 103 is disposed inside the electrical component box 102.
Connection cable 1 such as passing connection cable 104 through
04 is troublesome, and the front cover 108 of the terminal block 103 has to be removed every time the connection cable 104 is connected to or disconnected from the terminal block 103, and the work of connecting the cables takes time. Was.

Further, in the above-described conventional electrical component box of the air conditioner, the ground terminal 105 is connected to the heat exchanger 11.
1 and there is no extra space around it, so the earth wire 106 must be passed through the electrical component box 102 and connected to the earth terminal 105, so that the handling of the earth wire 106 is troublesome and The front lid 108 of the terminal block 103 must be removed every time the wire 106 is connected or disconnected, and there is a problem that the work of connecting the ground wire takes time.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and can easily perform cable connection, ground wire connection, and the like without troublesome wiring routing and removal of a front cover. The purpose is to obtain an electrical component box of an air conditioner with excellent workability.

[0008]

Means for Solving the Problems In order to achieve the above-mentioned object, an electric component box of an air conditioner according to the present invention is an electric component box provided in a housing of an air conditioner, in which a terminal block is directed downward at a lower part. And the terminal block can be accessed from a window opened at the lower bottom for cable connection.

[0009] The electric component box of the air conditioner according to the next invention is a cable connecting operation in which the terminal block projects downward from the window opened at the lower bottom in the electric component box provided in the casing of the air conditioner. It is provided so as to be movable between the position and the accommodation position accommodated in the electric component box.

[0010] In the electric component box of the air conditioner according to the next invention, the terminal block is connected to the cable by engaging a roll-over L-shaped guide groove formed on the electric component box side with a guide pin provided on the terminal block. It is movable between a working position and the storage position located in the electrical component box in a rollover state.

[0011] The electric component box of the air conditioner according to the next invention has a terminal block provided in a terminal block receiving box body attached to the bottom of the electric component box. It is provided so as to be movable between a storage position where it is stored in the body.

The electric component box of the air conditioner according to the next invention is provided with a clip stop mechanism for holding the terminal block at the accommodation position.

An electric component box for an air conditioner according to the next invention is the electric component box provided in the casing of the air conditioner, the entire surface of which is made of a conductive material such as sheet metal, and the electric component box itself is used as a ground terminal. The ground wire is screwed to the lower bottom with a ground screw.

[0014] In the electric component box of the air conditioner according to the next invention, the entire surface of the electric component box is made of a conductive material such as sheet metal.
The electrical component box itself serves as a ground terminal, and a ground wire is screwed to the lower bottom with a ground screw.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an electric component box of an air conditioner according to the present invention will be described below in detail with reference to the accompanying drawings.

Embodiment 1 1 to 3 show Embodiment 1 of an electric component box of an air conditioner according to the present invention. 1 to 3, reference numeral 1 denotes a housing (indoor unit case) of an air conditioner, in which an electric component box 2 and a heat exchanger 20 are installed. The electric component box 2 is engaged with the upper elastic claw 3 and the lower elastic claw 4 formed on the housing 1, and is fixed to the housing 1 by this engagement.

The electric component box 2 has a front side opened, and this front part is closed by a detachable front lid 5 to form a substantially closed box. Various electric components are stored in the electric component box 2. A terminal block 6 is fixedly arranged downward at a lower portion in the electric component box 2. The terminal block 6 has a window 7 opened at the lower bottom portion of the electric component box 2. When the connection cable 8 is connected to the terminal block 6, the terminal block 6 is visually observed from below the electric component box 2 by the window 7. As well as close to the terminal block 6.

The window 7 is closed by a small lid 10 fixed to the electric component box 2 by a ground screw 9. The electrical component box 2 is entirely made of a conductive material such as a sheet metal, and the electrical component box itself forms a ground terminal. A ground wire 11 is connected to a lower bottom portion by a ground screw 9.

As described above, the terminal block 6 can be seen from below the electrical component box 2 and can be approached to the terminal block 6 by the window 7.
Can be connected and removed only on the lower surface of the electric component box 2 without removing the front cover 5. This work is performed with good workability with access from below, particularly when the air conditioner (indoor unit) is installed near the ceiling of a house or the like.

Since the ground wire 11 is screwed to the lower bottom of the electrical component box 2 by the ground screw 9, the connection and removal of the ground wire 11 can be performed without removing the front cover 5 without removing the front cover 5. It is possible only with the lower surface. These operations are performed with good workability with access from below, particularly when the air conditioner (indoor unit) is installed near the ceiling of a house or the like. In addition, since it is not necessary to pass the connection cable 8 and the ground wire 11 through the electrical component box 2, wiring can be simplified.

Embodiment 2 FIG. 4 and 5 show a second embodiment of the electric component box of the air conditioner according to the present invention. In this embodiment, both inner side walls 2a of the electric component box 2,
Each of the terminal block holding members 12 is attached to the terminal block 2b, and the terminal block holding member 12 has a laterally-turned L-shaped guide groove 13 formed therein. A guide pin 14 that engages with the guide groove 13 protrudes from both outer walls of the terminal block 6. The terminal block 6 is formed by a solid line in FIG. 5 by the engagement between the guide pin 14 and the guide groove 13. As shown in the drawing, the cable connection work position protruding downward from the window 7 in the downward state, and the storage position in the electrical component box 2 in the overturned state as shown by the phantom line in FIG. It is movable between.

At the time of wiring work of the connection cable 4, the terminal block 6 is pulled out to a cable connection work position shown by a solid line in FIG. 5, and the terminal block 6 is projected downward from the window 7 in a downward state. Accordingly, the work of connecting and disconnecting the connection cable 8 to and from the terminal block 6 can be performed only on the lower surface portion of the electric component box 2 without removing the front cover 5, and wiring workability is improved.

After the completion of the wiring work, the terminal block 6 is moved to the accommodation position, and is housed in the electric component box 2, thereby making the terminal compact.

Embodiment 3 FIG. 6 and 7 show Embodiment 3 of an electric component box of an air conditioner according to the present invention. In this embodiment, a terminal block 6 is provided at the bottom of the electric component box 2.
A terminal block housing box 15 that houses the entirety of the terminal block is attached. The terminal block 6 is provided in the terminal block housing box 15 and faces downwards as shown by a solid line in FIG.
Cable connection work position protruding downward (down position)
And a storage position (elevated position) in which the whole is stored in the terminal block storage box 15 as indicated by a virtual line in FIG.
It can be moved between.

A clip stop claw 16 having resiliency is mounted on the terminal block housing box 15, and a clip stop groove 17 with which the clip stop claw 16 is detachably engaged with the terminal block 3.
Are formed, and the terminal block 3 is held at the accommodation position by the engagement between the clip stop claws 16 and the clip stop grooves 17.

At the time of wiring work of the connection cable 4, the terminal block 6 is pulled down to the cable connection work position shown by a solid line in FIG. 7, and the terminal block 6 is projected downward from the window 7 in a downward state. Accordingly, the work of connecting and disconnecting the connection cable 8 to and from the terminal block 6 can be performed only on the lower surface portion of the electric component box 2 without removing the front cover 5, and wiring workability is improved.

After completion of the wiring work, the terminal block 6 is pushed up to the accommodation position and is housed in the electric component box 2 to make it compact. In the storage position, the clip stop claw 16
The terminal block 6 does not fall unless a force is applied due to the engagement between the terminal block 6 and the clip stop groove 17.

[0028]

As can be understood from the above description, according to the electric component box of the air conditioner of the present invention, the terminal block is arranged downward at the lower part, and can be approached from the window opened at the lower bottom. Therefore, the operation of connecting and disconnecting the connection cable to and from the terminal block can be performed only on the lower surface portion of the electric component box without removing the front cover of the electric component box, and the connection cable is connected with good workability. In addition, since it is not necessary to pass the connection cable through the electrical component box, the wiring of the connection cable is simplified.

According to the electrical component box of the air conditioner according to the next invention, the cable connection work position where the terminal block protrudes downward with the terminal block being downward from the window opened at the lower bottom, and the receiving position where the terminal block is stored in the electrical component box. When the connection cable is laid out, the terminal block is pulled out to the cable connection work position and protruded downward from the window in a downward state, thereby connecting the connection cable to the terminal block. The removal operation can be performed with good workability by removing only the lower surface of the electric component box without removing the front lid of the electric component box. After the completion of the wiring work, the terminal block is moved to the accommodation position, and is housed in the electric component box, thereby making the terminal compact. In addition, since it is not necessary to pass the connection cable through the electrical component box, the wiring of the connection cable is simplified.

According to the electrical component box of the air conditioner according to the next invention, the terminal block is lowered by the engagement between the roll-over L-shaped guide groove formed on the electrical component box side and the guide pin provided on the terminal block. The terminal block can be moved between the cable connection work position that protrudes downward and downward from the window opened at the bottom and the storage position that is housed in the electrical component box in a rollover state. Cable to the cable connection work position and project downward from the window in the downward direction, so that the connection cable can be connected to and removed from the terminal block only on the lower part of the electrical component box without removing the front cover of the electrical component box. The work can be performed with good workability, and after completion of the wiring work, the terminal block can be moved to the housing position and placed in the electrical component box, thereby making the terminal compact.

In the electrical component box for an air conditioner according to the present invention, the terminal block is provided in the terminal block housing box, and the terminal block has a cable connection work position projecting downward from the window opened at the lower bottom in a downward state. The terminal block can be moved to and from the storage position where it is stored in a rollover state in the electrical component box, so when wiring the connection cable, pull out the terminal block to the cable connection work position and project it downward from the window below. The connection and disconnection of the connection cable to and from the terminal block will be performed only with the lower part of the electrical component box without removing the front cover of the electrical component box. By moving the terminal block to the housing position and storing it in the electrical component box, the size becomes compact.

According to the electrical component box of the air conditioner of the next invention, the terminal block is held at the storage position (elevated position) by the clip stop mechanism, so that the terminal block is accidentally dropped unless force is applied. Never come.

According to the electrical component box of the air conditioner according to the next invention, the electrical component box itself is used as a ground terminal, and the ground wire is screwed to the lower bottom with a ground screw. Work can be performed only on the lower surface of the electrical component box without removing the front lid of the electrical component box, and the ground wire is connected with good workability. Also, connect the ground wire
Since there is no need to pass through the inside of the electrical component box, the routing of the connection cable is simplified.

According to the electrical component box of the air conditioner according to the next invention, the terminal block is lowered by the engagement between the roll-over L-shaped guide groove formed on the electrical component box side and the guide pin provided on the terminal block. The terminal block can be moved between the cable connection work position that protrudes downward and downward from the window opened at the bottom and the storage position that is housed in the electrical component box in a rollover state. Cable to the cable connection work position and project downward from the window in the downward direction, so that the connection cable can be connected to and removed from the terminal block only on the lower part of the electrical component box without removing the front cover of the electrical component box. After the wiring work is completed, the terminal block is moved to the housing position and placed in the electrical box, making it compact and the electrical box itself Is a terminal, since is screwed by grounding screw the ground wire to the lower base portion, the ground wire connection,
The removal operation can be performed only on the lower surface portion of the electric component box without removing the front cover of the electric component box, and the ground wire is connected with good workability. In addition, since it is not necessary to pass the ground wire through the electrical component box, the wiring of the connection cable can be simplified.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of an air conditioner incorporating an electric component box according to the present invention.

FIG. 2 is a side view showing Embodiment 1 of the electric component box of the air conditioner according to the present invention.

FIG. 3 is a lower bottom view showing Embodiment 1 of the electric component box of the air-conditioning apparatus according to the present invention.

FIG. 4 is a lower bottom view showing Embodiment 2 of the electric component box of the air-conditioning apparatus according to the present invention.

FIG. 5 is a side view showing Embodiment 2 of the electric component box of the air conditioner according to the present invention.

FIG. 6 is a lower bottom view showing Embodiment 3 of the electric component box of the air-conditioning apparatus according to the present invention.

FIG. 7 is a side view showing Embodiment 3 of the electric component box of the air conditioner according to the present invention.

FIG. 8 is a perspective view showing a conventional example of an air conditioner incorporating an electric component box.

FIG. 9 is a front view showing a conventional example of an air conditioner incorporating an electric component box.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 housing, 2 electric box, 6 terminal block, 7 window, 9 ground screw, 10 small lid, 11 ground wire, 12 terminal block holding member, 13 guide groove, 14 guide pin, 15 terminal block housing box, 16 Clip stop claw, 17 Clip stop groove.

Claims (7)

[Claims] 1. An electric component box provided in a housing of an air conditioner, wherein a terminal block is arranged downward at a lower portion, and the terminal block is accessible from a window opened at a lower bottom portion for connecting a cable. An electrical component box of an air conditioner characterized by the following. 2. An electric component box provided in a housing of an air conditioner, wherein a terminal block has a cable connection work position protruding downward from a window opened at a lower bottom portion in a downward direction and a housing accommodated in the electric component box. The electric component box for an air conditioner according to claim 1, wherein the electric component box is provided so as to be movable between the position and the position. 3. The terminal block is positioned between the cable connection work position and the electrical component box in a rolled state by engagement of a roll-over L-shaped guide groove formed on the electrical component box side with a guide pin provided on the terminal block. The electrical component box for an air conditioner according to claim 2, wherein the electrical component box is movable between the storage position and the storage position. 4. A terminal block is provided in a terminal block housing box attached to the bottom of an electric component box, and is provided between the cable connection work position and a housing position in which the entirety is stored in the terminal block housing box. The electrical component box for an air conditioner according to claim 1, wherein the electrical component box is provided so as to be movable. 5. The electric component box for an air conditioner according to claim 4, further comprising a clip stop mechanism for holding a terminal block at the accommodation position. 6. An electric component box provided in a housing of an air conditioner, the whole surface of which is made of a conductive material such as a sheet metal,
An electrical component box for an air conditioner, wherein the electrical component box itself serves as a ground terminal, and a ground wire is screwed to a lower bottom portion with a ground screw. 7. The electric component box is entirely made of a conductive material such as sheet metal, the electric component box itself is used as a ground terminal, and a ground wire is screwed to a lower bottom portion with a ground screw. The electrical component box of the air conditioner according to any one of claims 1 to 4.