CN104810203A - Relay protection frame for cold compressor and manufacturing method thereof - Google Patents

Abstract

The invention discloses a refrigeration compressor relay protection frame and a manufacturing method of the refrigeration compressor relay protection frame, wherein a relay protection frame grounding terminal belongs to a part of a protection frame part, and two screw holes of the relay protection frame are directly punched on the protection frame grounding terminal.

Description

Relay protection frame for cold compressor and manufacturing method thereof

technical field

The invention relates to the technical field of refrigeration compressors, in particular to a relay protection frame for a cold compressor, and also to a manufacturing method for a relay protection frame for a cold compressor.

Background technique

At present, the traditional grounding terminal with a protective cover is shown in Figure 1 in the accompanying drawings of this manual. In the refrigerator compressor industry, the grounding method of the relay protective frame is mainly to drill two screw holes on the relay protective frame through an automatic tapping machine. , the compressor needs to be coated with black paint on the surface of the casing due to anti-rust, moisture-proof, and heat-absorbing protection. Into the grounding terminal; What's more, some compressors work in a bad environment. In order to prevent the grounding terminal from rusting, it is necessary to copper-plate the relay protection frame, or make a copper-plated grounding terminal specially, and connect the grounding terminal through butt welding When the compressor is painted with paint, it is still necessary to install a plastic protective sleeve on the protective frame to prevent paint from entering the grounding terminal.

Put a protective cover from above to avoid the grounding terminal of the compressor and avoid dipping paint. It is not difficult to find the following disadvantages:

(1) When the compressor is painted, regardless of whether the grounding terminal is copper-plated or not, it is necessary to install a protective cover on the grounding terminal. The process is more complicated and the cost is higher.

(2) For the non-copper-plated relay protection frame, due to the ever-changing environment of the compressor during production, storage, and use, the grounding terminal is prone to rust, which not only affects the appearance but also easily leads to abnormalities such as poor grounding;

(3) Even for copper-plated relay protective frames or grounding terminals, due to the hidden danger of heavy metals exceeding the standard in copper plating, there are also strict requirements on the thickness of the coating. If the coating is thin or uneven, the copper-plated protective frame will There are still hidden dangers of rusting in the large environment. Therefore, the copper plating of the protective frame after copper plating has high control costs and requirements and hidden dangers of rusting, which cannot achieve good grounding.

Obviously: In the existing technology, the grounding terminal with a paint-free protective cover has hidden dangers such as many parts to be processed, complicated procedures, easy to rust, heavy metals and other harmful substances that are easy to exceed the standard, and will increase the cost of manpower and parts. Above-mentioned various drawbacks, improvement is imperative.

Contents of the invention

The technical problem to be solved by the present invention is to provide a relay protection frame for cold compressors. The protection frame does not need to weld copper-plated grounding terminals, and the protection frame itself does not need copper plating. When the compressor is dipped in paint, the relay protection frame needs two The mounting ground screw hole is directly dipped in the paint. Since the entire protective frame is painted, the copper-plated grounding terminal and the welding of the copper-plated grounding terminal and the protective frame are omitted, and the installation protection of the grounding terminal of the relay protective frame is omitted. The cover is free from dipping paint, because the relay protective frame is painted with paint, and there is no abnormality such as rust in the ground terminal of the protective frame, so as to solve the above-mentioned multiple defects caused in the prior art.

In order to achieve the above object, the present invention provides the following technical solutions: a relay protective frame for cold compressors, including a protective frame body, the protective frame includes a mounting plate, and the middle position of the mounting plate is provided with an installation positioning hole, and the mounting plate An upper baffle and a lower baffle are arranged vertically above and below, side baffles are arranged vertically on the side of the mounting plate, and grounding terminals are arranged on the side of the mounting plate, the grounding terminal is integrally formed with the mounting plate, and screws are stamped on the terminals hole.

Preferably, the length of the side baffle is consistent with the length of the side of the installation plate.

Preferably, the upper baffle and the side baffles are provided with upper notches and side notches.

A kind of manufacture method of relay protective frame for cold compressor: comprise the steps:

1) The mounting plate is integrally formed with the upper baffle, the lower baffle, the side baffle and the grounding terminal, and is formed by die-casting;

2) The grounding part of the protective frame is painted with paint;

3) Punch screw holes in the ground terminal.

The beneficial effect of adopting the above technical scheme is: the relay protective frame with the structure of the present invention, when the grounding part of the relay protective frame is painted, the screw can play a tapping role in the process of attaching the grounding screw. , Squeeze out the paint in the screw hole of the relay protective frame, so that the relay protective frame and the grounding screw are in good contact and achieve good metal-to-metal contact. Although the paint appears on the relay protective frame, after the screws are tightened, the contact conduction resistance It is very small, and the grounding resistance is also very small. If there is an accident such as leakage, due to the small grounding resistance, the leakage current can quickly flow to the ground through the relay protective frame and then connect the grounding screw and grounding wire with the protective frame, and avoid accidental electric shock. The parts of the accident compressor are reduced, the contact welding between the grounding terminal and the protective frame is canceled, and the protective cover of the grounding terminal is cancelled. At the same time, the processing method of the main parts is simplified, the cost is significantly reduced, and abnormalities such as rusting of the grounding terminal of the protective frame are avoided.

Description of drawings

Fig. 1 is the structural representation of prior art protective frame;

Fig. 2 is a schematic structural view of Embodiment 1 of the present invention;

Fig. 3 is a schematic structural diagram of Embodiment 2 of the present invention.

Among them, 1--installation plate, 2--installation positioning hole, 3--upper baffle, 4--lower baffle, 5--side baffle, 6--ground terminal, 7--screw hole, 8- -upper notch, 9--side notch.

Detailed ways

Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Embodiment one:

As shown in Figure 2, a relay protective frame for cold compressors includes a protective frame body, the protective frame includes a mounting plate 1, and the middle position of the mounting plate 1 is provided with an installation positioning hole 2, and the upper and lower sides of the mounting plate 1 The upper baffle 3 and the lower baffle 4 are arranged vertically respectively, the side baffle 5 is arranged vertically on the side of the mounting plate 1, and the side of the mounting plate 1 is provided with a grounding terminal 6, the grounding terminal 6 is integrally formed with the mounting plate 1, and the wiring Oil screw holes 7 are stamped on the terminal 1, and the length of the side baffle 5 is consistent with the length of the side of the mounting plate 1.

The reciprocating piston refrigeration compressor relay protection frame provided by the present invention has the same length of the side baffle as the length of the mounting plate, which can effectively play a protective role and prevent foreign matter from entering the compressor. As a part of the relay protection frame, the ground screw hole is drilled into a screw on the ground terminal by a thread tapping machine. When the compressor is painted with paint, the entire relay protection frame including the ground terminal is immersed in the paint, and the paint is also arranged with the ground screw hole. During use, the grounding screw is connected and fastened to the grounding terminal through a single threaded hole. At the same time, the grounding screw squeezes out the paint in the single threaded hole to ensure the metal connection between the grounding screw and the relay protective frame. , No need for copper plating, which plays a good role in grounding, rust prevention, and cost reduction.

Embodiment two:

As shown in Figure 3, a relay protection frame for a cold compressor includes a protection frame body, the protection frame includes a mounting plate 1, and the middle position of the mounting plate 1 is provided with an installation positioning hole 2, and the top and bottom of the mounting plate 1 The upper baffle 3 and the lower baffle 4 are arranged vertically respectively, the side baffle 5 is arranged vertically on the side of the mounting plate 1, and the side of the mounting plate 1 is provided with a grounding terminal 6, the grounding terminal 6 is integrally formed with the mounting plate 1, and the wiring The oil screw hole 7 is stamped on the terminal 6, and the upper baffle 3 and the side baffle 5 are provided with an upper notch 8 and a side notch 9.

The refrigeration compressor belt protection frame provided by the present invention is provided with an upper gap and a side gap. The upper gap and the side gap can save the material of the stamping part, and are also conducive to the heat dissipation of the two devices after the relay cover is installed. The ground terminal is used as the relay protection frame. part, the two grounding screw holes are drilled into two screw holes on the grounding terminal by a thread tapping machine. When the compressor is painted with paint, the entire relay protective frame including the grounding terminal is immersed in the paint, and the paint is also placed on the grounding screw hole. During use, the grounding screw is connected and fastened to the grounding terminal through any threaded hole. At the same time, the grounding screw squeezes out the paint in any threaded hole to ensure the metal connection between the grounding screw and the relay protective frame. sleeve, and does not require copper plating, which plays a good role in grounding, rust prevention, and cost reduction.

A kind of manufacture method of relay protective frame for cold compressor: comprise the steps:

1) The mounting plate is integrally formed with the upper baffle, the lower baffle, the side baffle and the grounding terminal, and is formed by die-casting;

2) The grounding part of the protective frame is painted with paint;

3) Punch screw holes in the ground terminal.

The ground terminal is a part of the relay protection frame. The screw hole is drilled into a ground screw hole on the ground terminal by a thread tapping machine. Since only one ground screw hole needs to be drilled, one drilling and tapping process is reduced, and the stamping cost is reduced. When painting paint, the entire relay protective frame including the ground terminal is dipped in the paint, and the paint is also arranged on the ground screw hole. During use, the ground screw is connected and fastened to the ground terminal through the threaded hole, and at the same time, the ground screw The paint in the hole is extruded to ensure the metal connection between the grounding screw and the relay protective frame. At the same time, since there is no need to install a protective cover or copper plating, it plays a good role in grounding, rust prevention and cost reduction.

The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, without departing from the inventive concept of the present invention, some modifications and improvements can also be made, and these all belong to the present invention. protection scope of the invention.

Claims (4)

1. a cold compressor relay protective frame, comprise protective frame body, it is characterized in that: described protective frame comprises mounting panel, the centre position of mounting panel is provided with mounting-positioning holes, vertically be provided with overhead gage and lower baffle respectively above and below mounting panel, the lateral vertical of mounting panel is provided with side shield, and the side of mounting panel is provided with earth terminal, this earth terminal and mounting panel one-body molded, binding post upper punch is pressed with screw hole.

2. according to claim 1, it is characterized in that: the length of described side shield is consistent with the length of mounting panel.

3. according to claim 1, it is characterized in that: described overhead gage and side shield have breach and side breach.

4. a cold compressor method for relay protective frame described in manufacturing claims 1-3 any one, is characterized in that: comprise the steps:

Described mounting panel and overhead gage, lower baffle plate, side shield and earth terminal one-body molded, formed by die casting;

Paint is being coated to protective frame ground connection position;

Punching press screw hole on earth terminal.