Adapter block mechanism of electric compressor

Abstract

The utility model discloses an adapter block mechanism of an electric compressor, which comprises an adapter block, the front surface of the adapter block is a wear-resistant sheet supporting surface, the middle part of the adapter block is provided with a central hole, and the wear-resistant sheet supporting surface is respectively provided with a plurality of bolt locking holes and a plurality of short positioning pin holes. The two symmetrical sides of the wear-resisting piece supporting face are respectively provided with a long positioning pin hole, the wear-resisting piece supporting face is further provided with a backflow oil groove communicated with the center hole, and the back face of the switching block is provided with a plurality of air passing grooves communicated with the center hole. Compared with a traditional integrally-formed structure of a switching block and a compressor, the precision of the switching block can be controlled, the accuracy of the position of a pin hole is guaranteed, meanwhile, the mass and end face friction of the switching block are reduced as much as possible on the premise that the using effect of the switching block is guaranteed, flowing of an oil-gas mixed medium can be guaranteed through the gas passing groove, the backflow oil groove and other structures, and the service life of the switching block is prolonged. And the effects of cooling and reducing abrasion are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a switching block mechanism of an electric compressor. Background Art

[0002] When an electric scroll compressor is operating, the moving disc generally cooperates with the support disc. The pin ring hole on the back of the moving disc and the positioning pin on the support disc form an anti-self-rotation mechanism, allowing the moving disc to rotate horizontally under the drive shaft, achieving engagement between the scroll profiles and realizing the compressor gas function. In actual production, due to boundary conditions, some product development processes combine the support disc with the motor housing. During the processing, the position accuracy of the positioning pin hole cannot be guaranteed, resulting in a certain defective product rate and increasing the complexity of tooling positioning during the press-fitting process.

[0003] Therefore, those skilled in the art provide a switching block mechanism for an electric compressor to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a switching block mechanism for an electric compressor.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A transfer block mechanism for an electric compressor includes a transfer block, the front of the transfer block being a wear-resistant plate support surface, a center hole being provided in the middle of the transfer block, a plurality of bolt locking holes and a plurality of short positioning pin holes being provided on the wear-resistant plate support surface, the plurality of spiral locking holes and the plurality of short positioning pin holes being distributed in a circular array along different circumferences of the wear-resistant plate support surface, long positioning pin holes being provided on both symmetrical sides of the wear-resistant plate support surface, a return oil groove being connected to the center hole being provided on the wear-resistant plate support surface, and a plurality of air passage grooves being connected to the center hole being provided on the back of the transfer block.

[0007] Preferably, a plurality of air gaps are provided around the adapter block, and air holes are formed between the air gaps and the housing of the electric compressor.

[0008] Preferably, a plurality of weight-reducing grooves are provided on the back side of the adapter block.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] The adapter block structure designed in the utility model is a separate structure that can be bolted to the compressor. Compared with the traditional integrated structure of the adapter block and the compressor, it can control the accuracy of the adapter block and ensure the accuracy of the pin hole position. At the same time, under the premise of ensuring its use effect, its mass and end face friction are reduced as much as possible. The air groove, return oil groove and other structures provided can ensure the flow of the oil-gas mixed medium, play a role in cooling and reducing wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more specifically and intuitively illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments or the prior art.

[0012] Figure 1 This is a schematic diagram of the front structure of the adapter block proposed in the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the air passage proposed in the utility model;

[0014] Figure 3 This is a schematic diagram of the back structure of the adapter block proposed in the utility model.

[0015] In the figure: 1. Wear-resistant plate support surface; 2. Bolt locking hole; 3. Long locating pin hole; 4. Short locating pin hole; 5. Return oil groove; 6. Air groove; 7. Center hole; 8. Air notch; 9. Weight reduction groove. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Reference Figure 1-3 , an adapter block mechanism for an electric compressor, including an adapter block, the front of the adapter block is a wear-resistant sheet support surface 1, a center hole 7 is opened in the middle of the adapter block, the wear-resistant sheet support surface 1 is respectively provided with a plurality of bolt locking holes 2 and a plurality of short positioning pin holes 4, the plurality of spiral locking holes 2 and the plurality of short positioning pin holes 4 are respectively distributed in an annular array along different circumferences of the wear-resistant sheet support surface 1, long positioning pin holes 3 are opened on both symmetrical sides of the wear-resistant sheet support surface 1, a return oil groove 5 connected to the center hole 7 is further opened on the wear-resistant sheet support surface 1, and a plurality of air passage grooves 6 connected to the center hole 7 are opened on the back of the adapter block;

[0018] The technical solution adopted above is that the adapter block wear-resistant plate support surface 1 is in contact with the wear-resistant plate, and the wear-resistant plate is supported by the friction between the moving plate and the plane. The short locating pin hole 4 and the short locating pin are interference-fitted with the pin ring hole on the back of the moving plate to form an anti-rotation mechanism, so that the moving plate moves horizontally under the drive of the main shaft. The long locating pin hole 3 and the long locating pin are interference-fitted with the corresponding pin hole clearance on the outer shell, which can play a positioning role. The bolt is passed through the bolt locking hole 2 to be fastened to the compressor shell. The center hole 7 on the adapter block leaves space for the rotation of the main shaft and the eccentric block. There are multiple air grooves 6 on the back of the adapter block. While reducing the weight of the parts, the oil-gas mixture medium flows through the air groove 6 when the eccentric block in the center hole 7 rotates, which can cool the bearing at the same time. The oil-gas mixture medium can be sent to the back of the moving plate and the end face of the back of the moving plate through the center hole 7 and the return oil groove 5, which can form an oil film to reduce friction and reduce end face wear.

[0019] A plurality of air gaps 8 are provided around the adapter block, and air holes are formed between the air gaps 8 and the housing of the electric compressor;

[0020] The technical solutions adopted above are

[0021] The multiple air holes 8 on the side of the adapter block form air holes with the shell, so that the dynamic and static discs can engage and absorb air without obstruction.

[0022] A plurality of weight-reducing grooves 9 are provided on the back side of the adapter block;

[0023] The multiple weight-reducing grooves 9 on the back of the adapter block can appropriately reduce the accuracy of the parts, and through software simulation, it does not affect the structural strength and reduces end face friction.

[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A transfer block mechanism for an electric compressor, comprising a transfer block, characterized in that: The front of the adapter block is a wear-resistant plate support surface (1), a center hole (7) is provided in the middle of the adapter block, a plurality of bolt locking holes (2) and a plurality of short positioning pin holes (4) are provided on the wear-resistant plate support surface (1), the plurality of spiral locking holes (2) and the plurality of short positioning pin holes (4) are distributed in a circular array along different circumferences of the wear-resistant plate support surface (1), long positioning pin holes (3) are provided on both symmetrical sides of the wear-resistant plate support surface (1), a return oil groove (5) connected to the center hole (7) is also provided on the wear-resistant plate support surface (1), and a plurality of air passage grooves (6) connected to the center hole (7) are provided on the back of the adapter block.

2. The adapter block mechanism of an electric compressor according to claim 1, characterized in that: A plurality of air passage notches (8) are provided around the adapter block, and air passage holes are formed between the air passage notches (8) and the outer shell of the electric compressor.

3. The adapter block mechanism of an electric compressor according to claim 2, characterized in that: A plurality of weight-reducing grooves (9) are provided on the back side of the adapter block.

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