CN211819919U - Motor compressor shell and motor compressor - Google Patents

Abstract

The utility model relates to a motor compressor shell and motor compressor, this motor compressor shell includes: the compressor comprises a compressor shell with an inner cavity, and a through hole connected with the inner cavity, wherein the through hole is used for mounting a binding post; the inner wall of the through hole is provided with a plurality of through arc-shaped notches, the arc-shaped notches are symmetrical to the central axis of the upper surface of the through hole, and the arc-shaped notches and the binding post are the same central point and are superposed on the central axis; the first distance that terminal and arc breach's inner wall formed, the connecting wire between terminal and two endpoints of arc form the second distance, and the first distance is greater than the second distance. The utility model discloses effectively avoided taking place the problem of electric leakage easily between terminal and the perforating hole, realized the security that improves the complete machine under the condition of the installation space that does not increase the shell.

Description

Motor compressor shell and motor compressor

Technical Field

The utility model relates to a compressor technical field for the vehicle especially relates to an electric compressor shell and electric compressor.

Background

The motor is a driving part of the electric compressor, is arranged in an inner cavity of a shell of the compressor and is connected with the controller through a ceramic binding post.

The compressor shell is provided with a through hole penetrating through the inner cavity, the ceramic binding post is installed in the through hole, and the binding post penetrates through the through hole to be connected with a three-phase line of a driving component of the inner cavity.

Although the electric compressor is simple in structure and convenient to assemble, the distance between the through hole and the binding post is small, so that the safety distance between the binding post and the shell is insufficient, and the electric leakage of the compressor shell is easily caused. Meanwhile, the motor connector sheath is manually assembled on the ceramic binding post, so that a certain gap exists between the end face of the motor connector sheath and the ceramic insulating part of the ceramic binding post, the discharge possibility of the binding post is increased, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a motor compressor shell and motor compressor has solved the problem that takes place the electric leakage easily between terminal and the perforating hole, realizes the security that improves the complete machine under the condition of the installation space of not increasing the shell.

In order to achieve the above object, an aspect of the present invention provides a motor-driven compressor housing, including: the compressor comprises a compressor shell with an inner cavity, and a through hole connected with the inner cavity, wherein the through hole is used for mounting a binding post;

the inner wall of the through hole is provided with a plurality of through arc-shaped notches, the arc-shaped notches are symmetrical to the central axis of the upper surface of the through hole, and the arc-shaped notches and the binding post are the same central point and are superposed on the central axis;

the binding post and the inner wall of the arc-shaped notch form a first distance,

the binding post and a connecting line between two end points of the circular arc form a second distance,

the first distance is greater than the second distance.

Through above-mentioned technical characteristic, under the condition that keeps perforating hole occupation space not increase, make the safe distance increase between terminal and the perforating hole inner wall through the arc breach to reduce the possibility of compressor electric leakage, improve the security of using electric compressor.

Preferably, the through hole is a counter bore and comprises a through hole and a blind hole which are positioned on the inner side of the compressor shell and connected with the inner cavity, the through hole and the blind hole are coaxial, the blind hole is larger than the through hole, and the arc-shaped notch is arranged on the through hole so that the wiring terminal is well clamped in the through hole.

Preferably, a step surface is arranged at the joint of the blind hole and the through hole, and the blind hole, the through hole and the arc-shaped notch are perpendicular to the step surface, so that the hole wall of the through hole and the wiring terminal uniformly keep a safe distance.

Preferably, the step surface is provided with a sealing ring, and the shape of the sealing ring is matched with that of the step surface, so that the inner cavity of the electric compressor keeps a sealing state in the operation process.

Preferably, the hole wall of the blind hole is provided with a groove for mounting a clamp spring, and the clamp spring is used for fixing the wiring terminal.

Another aspect of the present invention provides an electric compressor, which includes the above-mentioned electric compressor housing, further including a driving assembly, a controller, and a terminal;

the driving assembly is arranged in the inner cavity and is electrically connected with the controller arranged outside the inner cavity through the wiring terminal, and the wiring terminal is arranged in the through hole and clamped with the step surface.

The above technical scheme of the utility model has following profitable technological effect:

through the safe distance between the pore wall that increases the through-hole and the terminal, prevent to take place the short circuit between motor compressor shell and the terminal, lead to the motor compressor electric leakage. This scheme improves the security performance of the electric compressor without increasing the installation space of the terminal and the motor housing.

Drawings

Fig. 1 is a schematic structural view of a motor-compressor housing according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

fig. 3 is a sectional view of a motor-driven compressor according to an embodiment of the present invention;

FIG. 4 is a partial cross-sectional view of FIG. 3B;

fig. 5 is a partial top view of fig. 4.

Reference numerals:

1. a compressor housing; 2. an inner cavity; 3. a through hole; 4. a binding post; 5. an arc-shaped notch; 6. a through hole; 7. blind holes; 8. a step surface; 9. a groove; 10. a drive assembly; 11. a controller; 12. a seal ring; 13. a clamp spring; 14. an insulating member; 15. and a three-phase terminal.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation and the positional relationship are based on the orientation or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not to be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.

The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

To sum up, the utility model discloses aim at protecting a compressor housing and motor compressor based on above-mentioned public technical characteristic.

As shown in fig. 1, 2 and 5, the preferred embodiment of the present invention specifically provides a motor-driven compressor housing, which comprises a compressor housing 1 having an inner cavity 2, a through hole 3 connecting the inner cavity 2, and a terminal 4 mounted on the through hole 3. A plurality of through arc-shaped notches 5 are formed in the inner wall of the through hole 3, the arc-shaped notches 5 are symmetrical to the central axis of the upper surface of the through hole 3, and meanwhile, the arc-shaped notches 5 and the wiring terminal 4 are the same central point and are superposed on the central axis; the binding post 4 forms a first distance d1 with the inner wall of the arc-shaped notch 5, a connecting line between the binding post 4 and two end points of the arc-shaped notch 5 forms a second distance d2, and the first distance d1 is larger than the second distance d 2.

Furthermore, the through hole 3 is a counter bore and comprises a through hole 6 and a blind hole 7 which are positioned on the inner side of the compressor shell 1 and connected with the inner cavity 2, the through hole 6 and the blind hole 7 are coaxial, the blind hole 7 is larger than the through hole 6, and the arc-shaped notch 5 is arranged on the through hole 6; a step surface 8 is arranged at the joint of the blind hole 7 and the through hole 6, and the blind hole 7, the through hole 6 and the arc-shaped notch 5 are vertical to the step surface 8; and a groove 9 for mounting the clamp spring is arranged on the hole wall of the blind hole 7.

Referring to fig. 3 and 4, a preferred embodiment of the present invention is disclosed, and specifically provides a motor compressor, which includes the above-mentioned motor compressor housing, further including a driving assembly 10, a controller 11, and a terminal 12. The driving assembly 10 is disposed in the inner cavity 2, and is electrically connected to a controller 11 disposed outside the inner cavity 2 through a terminal 4, and the terminal 4 is disposed in the through hole 3 and engaged with the step surface 8.

Further, a sealing ring 12 for sealing and keeping the inner cavity sealed is arranged between the step surface 8 and the binding post 4, the sealing ring 12 is attached to the binding post 4 and the step surface 8, and the shape of the sealing ring 12 is matched with that of the step surface. The blind hole 7 is provided with a clamp spring 13 for fixing the wiring terminal 4, and the clamp spring 13 is clamped with the groove 9. The terminal 4 includes a terminal body formed of a conductive material and a substrate for fixing a conductor, and an insulating member for maintaining insulation between adjacent two terminal bodies, and a hole section of the through hole 6 is smaller than a bottom contact surface of the holding member.

The following is a preferred embodiment of the present invention.

As shown in fig. 3 and 4, the driving assembly 10 is disposed in the inner cavity 2 of the motor-compressor housing 1 and is connected to the three-phase terminals of the controller 11 above the compressor housing 1 through the terminals 4. The terminal 4 and the seal ring 12 are provided in the through hole 3 of the compressor housing 1. The sealing ring 12 is arranged on the outer ring of the binding post 4, and the two clamp springs 13 are embedded into the groove 9 to compress the binding post 4, so that the sealing ring is in a compressed state to achieve a sealing effect. The through hole 6 of the mounting post 4 is a counter bore, and the step surface of the through hole is smaller than the contact surface of the fixer of the post so as to be convenient for sealing and compressing the post.

As shown in fig. 5, the corresponding portion of the binding post 4 for connecting the three-phase terminal has 6 arc notches 5, and two arc notches 2 are symmetrically arranged on the left and right sides of each binding post 4. The arc gaps 2 on the two symmetrical sides are the same central point and are superposed with the central point of the conductive material. The arc-shaped notches 2 on the two symmetrical sides keep a corresponding safe distance with the wiring terminal 4, and the safe distance is 2 times of the diameter of the wiring terminal 4. The distance between two adjacent posts 4 is 2 to 3 times of the diameter of the posts. The plurality of wiring terminals are arranged in a central axis array of the through hole 3 and are centered in the through hole 3.

The utility model discloses an increase the safe distance between through-hole position and the terminal, prevent to take place short circuit and electric leakage between motor compressor shell and the terminal. The embodiment improves the insulation performance of the whole machine under the condition of not increasing the installation space of the binding post and the shell of the motor compressor. The utility model is not only simple in structure, small, processing is convenient, and production efficiency is high.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (7)

1. A motor-compressor housing, characterized by: the compressor comprises a compressor shell with an inner cavity and a through hole communicated with the inner cavity, wherein the through hole is used for mounting a wiring terminal;

the inner wall of the through hole is provided with a plurality of through arc-shaped notches, the arc-shaped notches are symmetrical to the central axis of the upper surface of the through hole, and the arc-shaped notches and the binding post are the same central point and are superposed on the central axis;

the wiring terminal with the first distance that the inner wall of arc breach formed, the wiring terminal with the connecting wire between two extreme points of arc breach forms the second distance, first distance is greater than the second distance.

2. A motor-compressor housing according to claim 1, wherein: the through hole is a counter bore and comprises a through hole and a blind hole which are positioned on the inner side of the compressor shell and connected with the inner cavity, the through hole and the blind hole are on the same axis, and the aperture of the blind hole is larger than that of the through hole.

3. A motor-compressor housing according to claim 2, wherein: the arc-shaped notch is arranged on the hole wall of the through hole.

4. A motor-compressor housing according to claim 2 or 3, wherein: the blind hole is provided with a through hole, and the arc-shaped gap is arranged on the blind hole.

5. The motor-compressor housing according to claim 4, wherein: the step surface is provided with a sealing ring for keeping the inner cavity sealed, and the shape of the sealing ring is matched with that of the step surface.

6. The motor-compressor housing according to claim 4, wherein: and a groove for installing a clamp spring is formed in the hole wall of the blind hole, and the clamp spring is used for fixing the wiring terminal.

7. A motor-driven compressor comprising a motor-driven compressor housing according to any one of claims 1 to 6, further comprising a drive assembly, a controller, a terminal, characterized in that: the drive assembly is arranged in the inner cavity, and the wiring terminal is arranged in the through hole and electrically connected with the controller arranged outside the inner cavity.

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