JPS62174581A - Electrical equipment for compressor - Google Patents

Abstract

PURPOSE:To facilitate the installation of electric equipment by combining a housing which houses an overload protecting device,a housing which houses a starting relay, and a housing which forms a connector, in an integrated form with each other by means of receptacles and connecting terminals. CONSTITUTION:A first box type housing 11 houses an overload protecting device while having a pair of terminal plates 12a, 12b on its bottom face. A second box type housing 13 houses a starting PTC relay while having a pair of receptacles 14a, 14b which are engaged with the terminal plates 12a, 12b on its top face, pin sockets 15a-15c on its die, and external connecting terminals 16a, 16b on its bottom face. And, a third box type housing 17 has receptacles 18a, 18b which are engaged with the external connecting terminals 16a, 16b. These housings 11, 13, 17 are combined in an integrated form with each other and installed to the pin terminals 2a-2c of a compressor 1.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to electrical equipment for starting and overheating a compressor having a single-phase induction motor used in refrigerators and the like.

2. Description of the Related Art In recent years, compressors for refrigerators and freezers have been required to have high efficiency and high reliability, and starting relays have been made contactless and overload protection devices have been made highly accurate.

An example of the above-mentioned conventional electrical equipment for a compressor will be described below with reference to the drawings.

In the figure, 1 has three pin terminals 2a, 2b, and 2c for connecting the compressor to the outside. Reference numeral 3 designates a starting PTC relay, which has pin sockets 4b and 4C that engage with the pin terminals 2b and 2c, and a power supply connection terminal 5. Reference numeral 6 denotes an overload protection device selected according to the capacity of the compressor, and is connected to the compressor through a pin socket 4a. 7 is a power supply terminal of the overload protection device. 8 is a spring for attaching the overload protection device to the compressor. Reference numeral 9 denotes an insulating cover for protecting live parts such as the pin socket and power terminal, and is attached to the compressor by a spring 10.

The mounting structure of the compressor electrical equipment constructed as above will be explained below.

First, the overload protection device 6 is inserted into the fixing spring 8, and the spring 8 is fitted and fixed into the compressor. Next, the pin socket 4a is inserted into the pin terminal 2a. Furthermore, insert the starting PTC relay into pin terminals 2b and 2C. After connecting a power source to power terminals 6 and 7, an insulating cover is fitted and fixed with a spring 1o.

Problems to be Solved by the Invention However, in the above-described mounting structure, it is difficult to install the overload protection device 6, the starting PTCIJ relay 3, and the cover 9.
The equipment and installation is complicated and time-consuming, and the insulating cover 9 is required because the terminals 6 and 7 of the electrical components are exposed.
There were problems such as increased installation space. Furthermore, if an attempt is made to integrate the starting PTC relay 3 and the overload protection device 6 in order to solve such problems, since there are many types of overload protection devices, the number of combinations will increase, resulting in an increase in the number of models.
This created new problems such as complicated manufacturing and management.

In view of the above-mentioned problems, the present invention aims to provide an electrical component for a compressor that is easy to install, requires a small installation space, and has good serviceability.

Means for Solving the Problems In order to solve the above problems, the electrical components for compressors of the present invention are
An overload protection device is attached to the top surface of the box-shaped housing of the TC relay using a pair of terminals and a receptacle, and an external connection terminal is provided at the bottom, and a connector that engages with this is connected to the outside. ! The compressor can be installed by inserting a pin socket provided on one side of the box-shaped housing into the pin terminal of the compressor.

Function: With the above-described configuration, the present invention allows the starting PTC relay and overload protection device to be freely combined, and since the live parts are housed within the nozzle, the live parts are not exposed. It is something.

EXAMPLE Hereinafter, an electrical component for a compressor according to an example of the present invention will be described with reference to the drawings. In the description, the same reference numerals are used for the same parts as in the conventional example.

In the figure, 1 is a non-conductive first box-shaped housing with an overload protection device inside and a pair of terminal plates 12a and 1 on the bottom surface.
2b. Reference numeral 13 denotes a non-conductive second box-shaped housing which houses a starting PTC relay, and has the pair of terminal plates 12a on the upper surface of the housing.

12b with receptacles 14a, 14b that engage with the receptacles 12b, and - three bins 7) 15a on the sides.

16b and 16C. Further, the lower surface has at least two external connection terminals 16a and 1eb.

1 is a non-conductive third box-shaped/S housing, which is a receptacle 18 that engages with the external connection terminals 16a and 16b.
a and 18b, and is attached to the starting PTC relay.

19 is a spring for fixing the starting PTCIJ relay.

The mounting structure for the compressor electrical components configured as described above will be explained. First, the terminals 12a and 12b of the first box-shaped housing 11 are inserted into the upper receptacles 14a and 14b of the second box-shaped housing 13, and both the housings 11 and 13 are connected.

Next, the third housing 17 is attached to the second housing 1
Connect the external connection terminals 1ea and 1ab of 3 to the receptacle 18.
&, the second housing 13 by inserting it into 18b.
join to. Furthermore, three pin sockets 15a, 15
b, 15c to pin terminals 2a, 2b of compressor 1
, insert it into 2c and install.

Fix with spring 19.

As described above, according to this embodiment, the first 71 Uzing 1
By combining the first and second housings 13, it is possible to freely combine the starting PTC relay and the overload protection device, and there is no exposure of live parts, making installation easy.

Effects of the Invention As is clear from the above embodiments, the electrical component for a compressor of the present invention can be attached to the compressor by combining three box-shaped nozzles, making it easy to install and making it easier to start. The PTC relay and the overload protection device can be freely combined, and the effect that the photoelectric part is not exposed can be obtained without providing a special cover.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of an electrical component for a compressor according to an embodiment of the present invention, FIG. 2 is a rear perspective view of the same electrical component, and FIG. 5g3 is an exploded perspective view of a conventional electrical component for a compressor. FIG. 4 is a rear perspective view as well. 11...First box-shaped housing, 12a, 12
b...Pair of terminal plates, 13...Second box-shaped housing, 14a, 14b...Receptacle% 16a. 16b, 15c...3 pin sockets, 16
a. 16b...At least two external connection terminals,
17...Third box-shaped housing% 18a, 18
b...Receptacle. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure

Claims (1)

[Claims] A first non-conductive box-shaped housing has a pair of terminal plates on the bottom surface and is equipped with an overload protection device, a receptacle corresponding to the pair of terminal plates on the top surface, and a terminal for external connection on the bottom surface. a non-conductive second box-shaped housing having a pin socket on one side and a starting relay inside; and a non-conductive second box-shaped housing having a receptacle corresponding to the external connection terminal on the top surface, forming a connector. a third box-shaped housing, each of which is connected to the housing by inserting each of the terminals into a corresponding receptacle;
An electrical component for a compressor, wherein the second housing is attached to the compressor by coupling the pin socket with the pin terminal of the compressor.