Compressor

Abstract

The utility model provides a compressor. The compressor comprises a rear shell and a flow guide cover, the rear shell comprises a rear shell plate, a cylinder wall is arranged on the side, facing the compressor motor, of the rear shell plate, and a cavity capable of containing at least one power module is formed in the other side of the rear shell plate. A bearing seat is arranged on the side, facing the compressor motor, of the rear shell plate, and an air suction port is formed in the cylinder wall. The flow guide cover covers the side, facing a compressor motor, of the rear shell plate, and the flow guide cover is provided with a flow guide inlet communicating with the air suction port, at least one first flow guide channel, at least one second flow guide channel, two flow guide outlets and a plurality of refrigerant channels between the flow guide inlet and the two flow guide outlets. The bearing seat is provided with at least one opening, and the diversion outlet of the at least one second diversion channel is arranged at the at least one opening. According to the compressor disclosed by the utility model, the heat dissipation of the compressor controller is met while the performance of the compressor is not influenced through the structural matching of the flow guide cover and the compressor rear shell.

Description

Technical Field

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

[0002] With the development of the new energy market, air conditioning compressors must not only provide passenger compartment cooling but also meet the needs of rapid battery charging and cooling. Consequently, the demand for compressor power continues to increase. Furthermore, the explosive growth of hybrid vehicles and the harsh high-temperature environment of the engine compartment are placing increasingly stringent demands on the heat dissipation of the power components of electric air conditioning compressors (such as intelligent power modules (IPMs) and insulated-gate bipolar transistors (IGBTs)).

[0003] In the domestic market where technology is rapidly iterating, the heat dissipation design of compressor controllers can often only be improved based on existing models. However, due to the limitations of the mounting feet and the position of the air intake, the existing design is difficult to meet the heat dissipation requirements of the controller power compressor.

[0004] In an existing technical solution, a deflector is added to the scroll compressor, and the deflector inlet and the internal flow channel of the deflector are used to forcibly change the flow direction of the refrigerant at the air intake of the shell. This effectively solves the problem that the refrigerant entering and exiting the air intake cannot directly cool the power devices, thereby greatly reducing the temperature rise of the controller. However, in the above-mentioned solution, the deflector inlet of the deflector changes the flow direction almost vertically, which greatly increases the refrigerant flow resistance. Moreover, the deflector inlet is located between the motor and the shell, and its physical thickness occupies a larger space of the air intake channel, further increasing the air intake resistance. Therefore, although the introduction of the deflector can greatly optimize the heat dissipation of the compressor controller, it also brings about the problem of large air intake resistance and performance degradation of the compressor. Therefore, it is urgent to develop a compressor with an air intake guide structure that can meet the heat dissipation requirements of the controller without significantly increasing the flow resistance.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] In response to the problems in the prior art, the purpose of the present invention is to provide a compressor that satisfies the heat dissipation of the compressor controller without affecting the performance of the compressor through the structural coordination of the air guide cover and the compressor rear shell.

[0007] The utility model provides a compressor, comprising a rear shell and a deflector cover;

[0008] The rear housing includes a rear shell plate, a side of the rear shell plate facing the compressor motor is provided with a cylindrical wall, and the other side forms a cavity capable of accommodating at least one power module; a side of the rear shell plate facing the compressor motor is provided with a bearing seat, and the cylindrical wall is provided with an air intake;

[0009] The deflector cover is covered on the side of the rear shell plate facing the compressor motor, and the deflector cover is provided with a deflector inlet connected to the air intake port, two deflector outlets, at least one first deflector channel and at least one second deflector channel, and a plurality of refrigerant channels between the deflector inlet and the two deflector outlets;

[0010] The bearing seat is provided with at least one opening, and the diversion outlet of the at least one second diversion channel is provided at the at least one opening.

[0011] According to some examples of the present invention, the bearing seat is provided with two openings, one opening is provided on the side of the bearing seat facing the air intake port, and the other opening is provided on the side of the bearing seat away from the air intake port.

[0012] According to some examples of the present invention, the diversion outlet of the at least one first diversion flow channel is arranged at at least one of the openings.

[0013] According to some examples of the present invention, the air deflector is a portion of a ring, and the central angle of the ring is between 180° and 270°.

[0014] According to some examples of the present invention, a plurality of first fins and a plurality of second fins are provided on a side of the rear shell facing the air duct;

[0015] A plurality of first reinforcing ribs and a plurality of second reinforcing ribs are provided on one side of the air deflector facing the rear shell;

[0016] The plurality of first reinforcing ribs cooperate with the plurality of first fins to form at least one first guide channel;

[0017] The plurality of second reinforcing ribs cooperate with the plurality of second fins to form at least one second guide channel.

[0018] According to some examples of the present invention, the air duct and the rear shell are connected by bolts, and the bolt connection is provided on the first fin and / or the second fin.

[0019] According to some examples of the present invention, the compressor further includes a motor, insulating brackets provided at both ends of the motor, and a motor winding;

[0020] The insulating bracket close to the rear shell is clamped between the guide inlet and the inner wall of the cylinder wall.

[0021] Compared with the prior art, the compressor of the present invention is provided with an air intake guide cover. Without changing the layout of the existing compressor, a refrigerant flow channel with low flow resistance can be formed by adding the air intake guide cover. The refrigerant flow channel guides the refrigerant sucked into the compressor suction port to the power module and the bearing seat, thereby greatly improving the heat dissipation performance of the compressor controller and meeting the heat dissipation requirements of the compressor controller without affecting the performance of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings herein are incorporated into and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the present invention will become more apparent. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same figure numbers in the figures represent the same or similar parts, and their repeated descriptions will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0023] Figure 1 A partial cross-sectional view of a compressor according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic structural diagram of the rear housing of a compressor according to an embodiment of the present invention;

[0025] Figure 3 and Figure 4 They are schematic structural diagrams of the air deflector according to an embodiment of the present invention from different perspectives; and

[0026] Figure 5 This is a cross-sectional view of a deflector cover according to another embodiment of the present invention. DETAILED DESCRIPTION

[0027] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied to various different specific embodiments, and the various details of the present invention may be modified or altered based on different perspectives and application systems without departing from the spirit of the present invention. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other, unless they conflict.

[0028] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. The present invention can be embodied in many different forms and is not limited to the embodiments described herein.

[0029] In the description of the present invention, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, and features of different embodiments or examples, as long as they are not mutually inconsistent.

[0030] In order to clearly illustrate the present invention, components not related to the description are omitted, and the same or similar components throughout the specification are given the same reference numerals.

[0031] Throughout this specification, when a device is said to be "connected" to another device, this includes not only "direct connection" but also "indirect connection" with other elements interposed therebetween. Furthermore, when a device is said to "include" a certain component, unless otherwise stated, this does not exclude the inclusion of other components but rather implies that the device may include other components.

[0032] When a device is said to be "on" another device, it may be directly on the other device, but there may also be other devices between it. In contrast, when a device is said to be "directly on" another device, there are no other devices between it.

[0033] Although the terms first, second, etc. are used in some instances herein to represent various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first interface and the second interface, etc. are represented. Furthermore, as used in this article, the singular forms "one," "an," and "the" are intended to also include the plural forms, unless there is a contrary indication in the context. It should be further understood that the terms "comprise," "include," and "include" indicate the presence of features, steps, operations, elements, components, items, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B, or C" or "A, B, and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B, and C." Exceptions to this definition only occur when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0034] The technical terms used herein are intended only to refer to specific embodiments and are not intended to limit the present invention. The singular form used herein also includes the plural form, unless the statement explicitly indicates otherwise. The term "comprising" as used in this specification specifies specific features, regions, integers, steps, operations, elements, and / or components, and does not exclude the existence or addition of other features, regions, integers, steps, operations, elements, and / or components.

[0035] Although not defined otherwise, all terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those skilled in the art to which this invention belongs. Terms defined in commonly used dictionaries are to be interpreted as having meanings consistent with the relevant technical literature and current disclosures, and unless otherwise defined, they should not be overly interpreted as ideal or highly formalized meanings.

[0036] The structure of the compressor of the present invention is further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments are not intended to limit the scope of protection of the present invention.

[0037] Figure 1 This is a cross-sectional view of a compressor according to an embodiment of the present invention. Specifically, the compressor includes a rear housing 1 and a shroud 2. Figure 2This is a schematic structural diagram of the rear shell of a compressor according to an embodiment of the present invention. The rear shell 1 includes a rear shell plate 11. A cylinder wall 12 is provided on the side of the rear shell plate 11 facing the compressor motor 3, and a cavity C is formed on the other side to accommodate at least one power module. A bearing seat 13 is provided in the center of the side of the rear shell plate 11 facing the compressor motor 3 for accommodating one end of the compressor bearing. The cylinder wall 12 is provided with an air intake 121. The air guide cover 2 covers the side of the rear shell plate 11 facing the compressor motor 3. The air guide cover 2 is provided with an air inlet 21 connected to the air inlet 121, two air outlets 22A / 22B of at least one first air guide channel and at least one second air guide channel, and multiple refrigerant channels between the air inlet 21 and the two air guide outlets respectively. The bearing seat is provided with at least one opening, and the air outlet of at least one second air guide channel is provided at at least one opening.

[0038] More specifically, Figure 2 The bearing seat 13 of the embodiment is provided with two openings, namely opening e and opening f. The opening e is provided on the side of the bearing seat 13 facing the air intake port 121 , while the opening f is provided on the side of the bearing seat 13 facing away from the air intake port 121 .

[0039] A plurality of first fins 14A and a plurality of second fins 14B are provided on a side of the rear shell 11 facing the air guide cover. Figure 3 and Figure 4 The following are schematic structural diagrams of the air deflector 2 facing the rear shell and the side facing away from the rear shell, respectively, of an embodiment. The side of the air deflector 2 facing the rear shell 1 is provided with a plurality of first reinforcing ribs 23A and a plurality of second reinforcing ribs 23B; the plurality of first reinforcing ribs 23A cooperate with the plurality of first fins 14A to form at least one first flow guide channel a1 / a2 / a3; the plurality of second reinforcing ribs 23B cooperate with the plurality of second fins 14B to form at least one second flow guide channel. The first reinforcing ribs 23A and the second reinforcing ribs 23B on the air deflector 2 and the first fins 14A and the second fins 14B on the rear shell 1 form two refrigerant flow channel cavities on both sides of the bearing seat 13. The plurality of first flow guide channels a1 / a2 / a3 can be regarded as the main flow channel cavities, which converge to the flow guide outlet 22A along the direction of the air intake 121 of the rear shell 1. At least one of the second flow-guiding channels b1 / b2 can be considered a secondary flow channel cavity. The flow-guiding outlet of the second flow-guiding channel b1 is located at the opening e of the bearing seat 13, thereby directing a portion of the refrigerant into the bearing seat 13. The primary flow channel cavity is aligned with the air intake 121 of the rear housing 1 to avoid large curvature deflections of the refrigerant airflow. The secondary flow channel cavity can be designed with a smaller deflection curvature, thereby reducing flow resistance.

[0040] Preferably, the diversion outlet 22A of at least one first diversion channel a1 / a2 / a3 is disposed at another opening f of the bearing seat 13, with the opening f and the opening e disposed opposite each other. This maximizes the distance traveled by the cold flow through the bearing seat 13, thereby optimizing the oil mist lubrication effect on the bearing seat 13. Accordingly, the deflector 2 is a portion of a ring, and the corresponding central angle of the ring is between 180° and 270°. That is, the diversion outlet 22A and the diversion outlet 22B can be considered the two ends of a portion (arc) of the ring.

[0041] Multiple power modules 4 can be mounted on the other side of the rear housing, where the first and second fins 14A, 14B are located. These modules can be intelligent power modules (IPMs) or insulated gate bipolar transistors (IGBTs). These modules not only reduce the size of the compressor system but also significantly enhance system reliability. These modules align with the current development trends of power devices—modularization, composites, and power integrated circuits—and are finding increasing application in electric vehicles. The first and second fins 14A, 14B on the rear housing 1 increase the heat dissipation area, enhancing the heat dissipation efficiency of the power modules 4.

[0042] The multiple first reinforcing ribs 23A and multiple second reinforcing ribs 23B of the air deflector 2 can enhance its own rigidity while reducing injection deformation, greatly improving the processing and installation accuracy of the air deflector. The air deflector 2 and the rear housing 1 are connected by bolts, and the bolt connections are provided at the first fins 14A and / or the second fins 14B, or in other words, at the first reinforcing ribs 23A and / or multiple second reinforcing ribs 23B of the air deflector 2. This structure can improve the strength of the bolt connection. The number and location of the bolt connections can be further determined based on the structure of the air deflector and the rear housing.

[0043] The compressor also includes a motor 3, insulating brackets 31 and motor windings 32 arranged at both ends of the motor. Figure 5 This is a cross-sectional view of the air duct of another embodiment of the present invention. In this embodiment, the insulating bracket 31 near the rear housing 1 is clamped between the air duct inlet 21 and the inner wall of the cylinder wall 12. In other words, the air duct inlet 21 of the air duct 2 is provided with an opening d for inserting the insulating bracket 31 of the motor 3 into the opening d, thereby fully utilizing the space between the cylinder wall 12 and the motor insulating bracket 31.

[0044] In summary, the compressor of the present invention increases the contact area between the refrigerant and the bearing seat by arranging a deflector on the rear shell of the compressor and a refrigerant flow channel on the bearing seat, thereby improving the heat dissipation effect of heating devices such as power modules and capacitors near the bearing seat, and improving the lubrication effect of the bearing seat.

[0045] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0046] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A compressor, characterized in that: Including rear shell and shroud; The rear housing includes a rear shell plate, a side of the rear shell plate facing the compressor motor is provided with a cylindrical wall, and the other side forms a cavity capable of accommodating at least one power module; a side of the rear shell plate facing the compressor motor is provided with a bearing seat, and the cylindrical wall is provided with an air intake; The deflector cover is covered on the side of the rear shell plate facing the compressor motor, and the deflector cover is provided with a deflector inlet connected to the air intake port, two deflector outlets, at least one first deflector channel and at least one second deflector channel, and a plurality of refrigerant channels between the deflector inlet and the two deflector outlets; The bearing seat is provided with at least one opening, and the diversion outlet of the at least one second diversion channel is provided at the at least one opening.

2. The compressor according to claim 1, characterized in that The bearing seat is provided with two openings, one opening is provided on a side of the bearing seat facing the air intake port, and the other opening is provided on a side of the bearing seat facing away from the air intake port.

3. The compressor according to claim 2, characterized in that The diversion outlet of the at least one first diversion channel is arranged at the at least one opening.

4. The compressor according to claim 1, characterized in that The deflector is a portion of a ring, and the central angle of the ring is between 180° and 270°.

5. The compressor according to claim 1, characterized in that A plurality of first fins and a plurality of second fins are provided on one side of the rear shell plate facing the air guide cover; A plurality of first reinforcing ribs and a plurality of second reinforcing ribs are provided on one side of the air deflector facing the rear shell; The plurality of first reinforcing ribs cooperate with the plurality of first fins to form at least one first guide channel; The plurality of second reinforcing ribs cooperate with the plurality of second fins to form at least one second guide channel.

6. The compressor according to claim 5, characterized in that The air deflector and the rear shell are connected by bolts, and the bolts are connected to the first fins and / or the second fins.

7. The compressor according to claim 1, characterized in that The compressor also includes a motor, insulating brackets arranged at both ends of the motor, and a motor winding; The insulating bracket close to the rear shell is clamped between the guide inlet and the inner wall of the cylinder wall.

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