JP5078699B2 - Power terminal protective cover - Google Patents

Description

  The present invention relates to a power supply terminal protective cover for a compressor, and more particularly to a power supply terminal protective cover used when a compressor connection power cable is connected in a compressor having a power supply terminal portion.

  A conventional compressor power terminal protection device has a two-part configuration in which a power terminal protection cover is attached to the outside of a compressor power terminal. The power supply terminal protection device has a partition wall that isolates a plurality of power connection tab terminals from each other in the main body, and is connected to the partition wall to form an outer wall that surrounds the power connection tab terminal (for example, a patent) Reference 1).

Japanese Patent Laid-Open No. 5-99144 (page 3, FIG. 1 to FIG. 2)

The conventional power terminal protection device of a compressor has a partition wall and an outer wall, but is not fixed itself, and there is a gap between the power terminal protection cover, so the power terminal protection device floats, Before installing the terminal protection cover, the cable wire may be caught between the power terminal protection device and the outer shell of the compressor.
Further, since the power terminal protection cover and the power terminal protection device are separated as parts, there are problems such as poor installation workability.

  The present invention has been made in order to solve the above-described problems, and has a structure in which the compressor connection power cable is not sandwiched between the outer portion of the compressor and the power terminal protection device, and the assembly work is performed. It is an object of the present invention to provide a compressor power terminal protective cover capable of improving quality.

  In addition, the compressor power supply terminal protection cover that improves the assembly workability by holding the terminal of the compressor connection power cable connected to the power supply terminal of the compressor and guiding the cable wiring path. The purpose is to provide.

  Furthermore, a compressor power terminal protective cover for a compressor capable of obtaining a reduction in the number of parts is provided by integrating the power terminal protective device and the power terminal protective cover which are conventionally configured as separate parts. For the purpose.

Power terminal protection cover according to the present invention, a plurality of connection terminals of the power supply terminal portion of the compressor is isolated from each other, for accommodating the cable wire retaining pin of a compressor connection power cable is connected to these connecting terminals A plurality of connection grooves for storing the terminals, the cable grooves being provided on the inner side, the terminals of the compressor connection power cable stored in the cable grooves being held by a cable holding cover attached to the opening side of the cable grooves A power terminal protective cover in which the cable groove is drawn out in the same direction from each connection groove, and the power terminal protective cover is provided with fixing arms respectively located on both sides of the connection groove, A power terminal protective cover is fixed to the compressor so as to straddle the power terminal portion, and the fixing arm is fixed to a stud bolt provided on the compressor. The screw holes of the nuts, is provided with a portion with no screw groove.

  The power terminal protective cover has a guide groove that isolates the connection terminals from each other, and the terminal of the compressor connection power cable is held in the guide groove in advance, so that the cable can be guided, thus eliminating erroneous connections. be able to. Further, since the guide groove is formed directly on the power terminal protective cover, the compressor connecting power cable can be easily attached to the connecting terminal on the power terminal portion, the production process is shortened, and the yield is improved.

Embodiment 1 FIG.
1 is a top view of the compressor according to Embodiment 1 of the present invention with the top plate of the power terminal protective cover removed (corresponding to the AA cross section of FIG. 2), and FIG. 2 is the power terminal protective cover of FIG. 3 is a longitudinal sectional view taken along the groove direction of the guide groove, and FIG. 3 is a longitudinal sectional view of the power supply terminal protection cover of FIG. 1 cut perpendicular to the groove direction of the guide groove.
In the figure, a compressor 1 is mounted on an air conditioner or the like, and a power supply terminal portion 2 is disposed on the outside of the compressor 1. The power supply terminal portion 2 has a power supply connected to a terminal (described later) of a compressor connection power cable. A plurality (three in this embodiment) of connection tab terminals 3 (also referred to as connection terminals) are provided.

  The compressor 1 is provided with a power supply terminal protective cover 10 for protecting the power supply terminal portion 2, and a plurality of guide grooves 11 for isolating the power supply connection tab terminals 3 from each other (3 in the present embodiment). The compressor connection power cable 20 is accommodated in each guide groove 11. The compressor connection power cable 20 is composed of a compressor connection power cable terminal 20 a (hereinafter referred to as a faston terminal 20 a) and a cable wire 20 b (also referred to as a lead wire). Connected to the tab terminal 3.

  The guide groove 11 includes a connection groove 11a that houses the faston terminal 20a connected to the power connection tab terminal 3, and a cable groove 11b that communicates with the connection groove 11a and houses the cable wire 20b. The connection grooves 11 a are provided concentrically on the power terminal protection cover 10, and the respective cable grooves 11 b are drawn from the power terminal protection cover 10 in the same direction.

  A cable holding cover 30 is attached to the power terminal protective cover 10, and the compressor connecting power cable 20 is fitted and held from the opening side of the guide groove 11. That is, as shown in FIG. 3, for example, hemispherical engagement recesses 15 a and 15 b are provided on the outer wall surface of the guide groove 11, while the guide walls 11 are provided with guides on both inner walls of the fitting groove 31 of the cable holding cover 30. Engaging protrusions 32 a and 32 b are provided corresponding to the engaging recesses 15 a and 15 b of the groove 11. Then, from the opening side of the guide groove 11, the fitting groove 31 of the cable holding cover 30 is fitted to the outer wall, and the engaging convex portions 32 a and 32 b are engaged with the engaging concave portions 15 a and 15 b, The cable holding cover 30 is integrally coupled to the opening side of the guide groove 11. Note that the above coupling means is not limited to this.

  The power terminal protective cover 10 is provided with two fixing arms 12 and is fixed to the compressor 1 with nuts 13. The fixed arms 12 are located on both sides of a connection groove 11a provided substantially concentrically, and project in the direction opposite to the direction in which the cable groove 11b is pulled out. Thus, the power terminal protective cover 10 is attached so as to be oriented in a certain direction so as to straddle the power terminal portion 2, and press the compressor connecting power cable 20 evenly from above.

Next, the operation of this embodiment will be described.
The compressor connection power cable 20 is housed in the guide groove 11 of the power terminal protection cover 10, and the cable holding cover 30 is attached from the opening side of the guide groove 11 to hold the compressor connection power cable 20. At this time, the faston terminal 20a is accommodated in the connection groove 11a of the guide groove 11, and the cable wire 20b is accommodated in the cable groove 11b.
Then, the power terminal protective cover 10 integrated with the compressor connection power cable 20 is disposed so as to straddle the power terminal portion 2 of the compressor 1, and the faston terminal 20 a is connected to the power connection tab terminal 3. Connect, tighten the nut 13 of the fixed arm 12, and press the power connection tab terminal 3 evenly from above. Thereby, the power terminal protective cover 10 is attached to the compressor 1 and can be started.

  According to the first embodiment, since the compressor connection power cable 20 is held by the guide groove 11 of the power terminal protection cover 10 and the cable holding cover 30, the power source of the compressor 1 can be used as an integral part. It can be easily attached to the terminal portion 2. And the compressor connection electric wire cable 20 can be attached without being pinched | interposed between the container parts which form the compressor 1. FIG.

Further, since the fixed arm 12 of the power terminal protective cover 10 is disposed so as to straddle the power terminal 2 of the compressor 1, the stud bolt provided with the mounting arm 12 of the power terminal protective cover 10 on the compressor 1. 14 (FIG. 4) and tightening with the nut 13 allows the compressor connecting power cable 20 to be pressed evenly from above the power terminal portion 2. For this reason, even if the Faston terminal 20a is incompletely connected to the power connection tab terminal 3, the Faston terminal 20a can be reliably connected.
Further, since the fixed arm 12 and the power terminal portion 2 of the power terminal protective cover 10 are not on the same straight line on the same plane, the mounting direction is constant, and erroneous connection of the compressor connecting power cable 20 can be prevented. .

Embodiment 2. FIG.
FIG. 4 is a longitudinal sectional view showing a fixing portion of the power terminal protective cover of the compressor according to Embodiment 2 of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
In the second embodiment, when the faston terminal 20a of the compressor connection power cable 20 is incompletely connected to the power connection tab terminal 3 of the compressor 1, the tightening nut 13 of the mounting arm 12 of the power terminal protection cover 10 is tightened. I can't do that.
That is, in FIG. 4, the screw portion of the nut 13 has a portion without a thread groove. When the nut 13 is fastened to the stud bolt 14, the stud portion is connected to the screw portion on the nut 13 side in an incompletely connected state. The screw of the bolt 14 is not hooked and the nut 13 cannot be tightened.

  According to the second embodiment, since the screw hole of the nut 13 for fixing the power terminal protection cover 10 has a portion without a screw groove, the container of the compressor 1 is mounted on the fixing arm 12 of the power terminal protection cover 10. When the stud bolt 14 provided on the upper surface completely protrudes, the nut 13 can be tightened, and the power connection tab terminal 3 of the compressor 1 and the faston terminal 20a of the compressor connection power cable 20 are not incompletely connected. Connected securely.

It is a top view of the state which removed the top plate of the power terminal protective cover of the compressor concerning Embodiment 1 of the present invention. It is the longitudinal cross-sectional view which cut | disconnected the power terminal protective cover of FIG. 1 along the groove direction of a guide groove. It is the longitudinal cross-sectional view which cut | disconnected the power terminal protective cover of FIG. 1 orthogonally to the groove direction of a guide groove. It is a longitudinal cross-sectional view which shows the fixing | fixed part of the power terminal protective cover of the compressor which concerns on Embodiment 2 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Compressor, 2 Power supply terminal part, 3 Power supply tab terminal (connection terminal), 10 Power supply terminal protective cover, 11 Guide groove, 11a Connection groove (guide groove provided substantially concentrically), 11b Cable groove (cable wire Guide groove), 12 fixing arm, 13 nut, 14 stud bolt, 20 compressor connecting power cable, 20a faston terminal (terminal), 20b cable wire, 30 cable holding cover.

Claims (2)

A plurality of connection terminals of the power supply terminal portion of the compressor are isolated from each other, and a cable groove for storing a cable wire holding the terminal of the compressor connection power cable connected to these connection terminals is provided inside ,
The terminal of the compressor connection power cable housed in the cable groove is held by a cable holding cover attached to the opening side of the cable groove,
A plurality of connection grooves for storing the terminals are formed, and the cable groove is a power terminal protection cover that is pulled out from each connection groove in the same direction,
The power terminal protective cover is provided with fixing arms respectively located on both sides of the connection groove, and the power terminal protective cover is fixed to the compressor so as to straddle the power terminal portion,
A power terminal protective cover , wherein a screw hole portion of a nut for fixing the fixing arm to a stud bolt provided in the compressor is provided with a portion having no screw groove . Before Symbol fixed arm, the power supply terminal protection cover according to claim 1, characterized in that it is extended in the direction opposite to the drawing direction of the cable groove.

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