Rotor shaft for heat pump compressor and heat pump compressor

Abstract

The utility model discloses a rotor shaft for a heat pump compressor and the heat pump compressor, and relates to the technical field of heat pump compressors, the rotor shaft comprises multiple sections of rotor shaft bodies, the multiple sections of rotor shaft bodies are sequentially arranged along the axial direction of the rotor shaft, any two adjacent rotor shaft bodies are fixedly connected, and the multiple sections of rotor shaft bodies are sequentially arranged along the axial direction of the rotor shaft. And a weight reduction space is formed in each rotor shaft body. The rotor shaft is formed by splicing the multiple rotor shaft bodies, the machining complexity of the rotor shaft can be reduced, the production cost of the rotor shaft is reduced, the production time of the rotor shaft is shortened, the weight reduction space is formed in each rotor shaft body, the weight of the rotor shaft can be reduced, energy consumption needed by the rotor shaft during operation can be reduced, and the service life of the rotor shaft is prolonged. And therefore, the responsiveness and the operation stability of the heat pump compressor can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat pump compressor technical field especially is related to a rotor shaft for heat pump compressor and heat pump compressor. BACKGROUND

[0002] In the related art, the rotor shaft of the existing heat pump compressor is usually integrally processed, which leads to high complexity in processing the rotor shaft structure and large overall weight of the rotor shaft, so that more energy is consumed to overcome the inertia of the rotor shaft during operation, thereby resulting in poor responsiveness and operation stability of the heat pump compressor. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a rotor shaft for heat pump compressor, which can reduce the processing complexity of the rotor shaft, thereby reducing the production cost and time of the rotor shaft and improving the responsiveness and operation stability of the heat pump compressor.

[0004] The utility model further provides a heat pump compressor with the above rotor shaft for heat pump compressor.

[0005] The rotor shaft for heat pump compressor according to the utility model embodiment comprises: a plurality of rotor shaft bodies arranged in sequence along the axial direction of the rotor shaft, and any two adjacent rotor shaft bodies are fixedly connected, and a weight-reducing space is formed in each rotor shaft body.

[0006] The rotor shaft for heat pump compressor according to the utility model embodiment can reduce the processing complexity of the rotor shaft by dividing the rotor shaft into a plurality of rotor shaft bodies, thereby reducing the production cost and time of the rotor shaft, and a weight-reducing space is formed in each rotor shaft body, which can reduce the weight of the rotor shaft, thereby reducing the energy consumption required during operation of the rotor shaft, and further improving the responsiveness and operation stability of the heat pump compressor.

[0007] According to some embodiments of the utility model, the plurality of rotor shaft bodies comprise: two end rotor shaft bodies and a middle rotor shaft body, and the middle rotor shaft body is connected between the two end rotor shaft bodies.

[0008] According to some embodiments of the utility model, along the axial direction of the rotor shaft, an installation boss is formed at the end of the end rotor shaft body facing the middle rotor shaft body, the middle rotor shaft body is formed with an installation hole penetrating the middle rotor shaft body along the axial direction of the rotor shaft, the installation hole is configured as a weight-reducing space, and the installation boss is installed in the installation hole and fixedly connected with the middle rotor shaft body.

[0009] According to some embodiments of the present application, the inner surface of the mounting hole is provided with a glue layer, the glue layer is adjacent to the end of the mounting hole, and the glue layer is connected between the mounting boss and the inner surface of the mounting hole.

[0010] According to some embodiments of the present application, when the mounting boss is installed in the mounting hole, the glue layer is heated to connect the mounting boss and the inner surface of the mounting hole.

[0011] According to some embodiments of the present application, the mounting boss is formed with a weight reduction structure.

[0012] According to some embodiments of the present application, the weight reduction structure is a weight reduction groove.

[0013] According to some embodiments of the present application, the end rotor shaft body comprises: a shaft body and a connecting cover plate, the shaft body defines an installation groove open to the middle rotor shaft body, the connecting cover plate is arranged at the open end of the installation groove to make the end rotor shaft body define a weight reduction space, the connecting cover plate and the shaft body are fixedly connected, and the end surface of the connecting cover plate facing the middle rotor shaft body is formed with a mounting boss.

[0014] According to some embodiments of the present application, the inner side wall of the installation groove is formed with a limiting surface facing the connecting cover plate, and the connecting cover plate and the limiting surface are in abutment.

[0015] The heat pump compressor according to the embodiments of the present application comprises the rotor shaft of the above embodiments.

[0016] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0018] Figure 1 is a sectional view of the rotor shaft according to the embodiments of the present application.

[0019] REFERENCE NUMERALS

[0020] Rotor shaft 100;

[0021] Rotor shaft body 10; weight reduction space 11;

[0022] End rotor shaft body 20; mounting boss 21; weight reduction structure 22; shaft body 23; connecting cover plate 24; installation groove 25; limiting surface 26;

[0023] Middle rotor shaft body 30; mounting hole 31. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and cannot be understood as limiting the present application.

[0025] Reference is made below to Figure 1 A rotor shaft 100 for a heat pump compressor and a heat pump compressor according to embodiments of the present application are described.

[0026] The rotor shaft 100 according to embodiments of the present application comprises: a plurality of rotor shaft bodies 10 arranged in sequence along the axial direction of the rotor shaft 100, and any two adjacent rotor shaft bodies 10 are fixedly connected, and a weight-reducing space 11 is formed in each rotor shaft body 10.

[0027] The rotor shaft 100 comprises: a plurality of rotor shaft bodies 10, which can more effectively distribute and withstand mechanical stress through reasonable segmentation design, thereby improving the strength and toughness of the rotor shaft 100 as a whole, and the plurality of rotor shaft bodies 10 can be processed respectively, thereby reducing the processing complexity of the rotor shaft 100, and thereby reducing the production cost and time of the rotor shaft 100. The plurality of rotor shaft bodies 10 are arranged in sequence along the axial direction of the rotor shaft 100, and any two adjacent rotor shaft bodies 10 are fixedly connected, for example, any two adjacent rotor shaft bodies 10 can be fixedly connected by bonding, or any two adjacent rotor shaft bodies 10 can be fixedly connected by bolts, but the present application is not limited thereto, and any two adjacent rotor shaft bodies 10 can also be fixedly connected by other means, as long as any two adjacent rotor shaft bodies 10 are fixedly connected.

[0028] A weight-reducing space 11 is formed in each rotor shaft body 10, which can significantly reduce the weight of the rotor shaft 100, helping to reduce the operating energy consumption of the rotor shaft 100, so that the friction and resistance generated by the rotor shaft 100 during operation are reduced, thereby improving the responsiveness and operating stability of the heat pump compressor. The design of the weight-reducing space 11 can also reduce the material usage without affecting the performance of the rotor shaft 100, helping to reduce production costs, reduce resource consumption, and the weight-reducing space 11 can also serve as a heat dissipation channel to allow air or cooling medium to flow inside the rotor shaft 100, thereby improving the heat dissipation conditions of the heat pump compressor.

[0029] According to the rotor shaft 100 for the heat pump compressor provided by the embodiment of the present application, the rotor shaft 100 is divided into multiple rotor shaft bodies 10 and spliced, which can reduce the processing complexity of the rotor shaft 100, thereby reducing the production cost and time of the rotor shaft 100, and the weight reduction space 11 is formed in each rotor shaft body 10, which can reduce the weight of the rotor shaft 100, thereby reducing the energy consumption required when the rotor shaft 100 operates, and further improving the responsiveness and operation stability of the heat pump compressor.

[0030] Further, the weight reduction space 11 can be formed in each rotor shaft body 10, which not only can significantly reduce the weight of the rotor shaft 100, but also can help to reduce the energy consumption required when the rotor shaft 100 operates, and can reasonably distribute the weight reduction space 11 according to the actual situation of the rotor shaft 100, so as to balance the mass distribution of the rotor shaft 100, reduce the vibration and noise caused by imbalance, and further improve the responsiveness and operation stability of the heat pump compressor.

[0031] According to some embodiments of the present application, as shown in Figure 1 the multiple rotor shaft bodies 10 include two end rotor shaft bodies 20 and a middle rotor shaft body 30, the middle rotor shaft body 30 is connected between the two end rotor shaft bodies 20, for example, the middle rotor shaft body 30 and the two end rotor shaft bodies 20 can be fixedly connected by adhesion, or the middle rotor shaft body 30 and the two end rotor shaft bodies 20 can be fixedly connected by bolts, but the present application is not limited thereto, the middle rotor shaft body 30 and the two end rotor shaft bodies 20 can also be fixedly connected by other ways, as long as the middle rotor shaft body 30 is connected between the two end rotor shaft bodies 20. In this way, the structural strength of the rotor shaft 100 can be optimized, which helps to disperse stress and avoid the risk of rotor shaft 100 failure caused by excessive stress on a single rotor shaft body 10. Moreover, the positions and sizes of the weight reduction spaces 11 of the two end rotor shaft bodies 20 and the middle rotor shaft body 30 can be reasonably designed according to the actual situation, so as to ensure that the mass distribution of the rotor shaft 100 is more uniform, further reduce the vibration and noise caused by imbalance, and improve the stability and reliability of the heat pump compressor.

[0032] According to some embodiments of the present application, as shown in Figure 1 along the axial direction of the rotor shaft 100, the end of the end rotor shaft body 20 facing the middle rotor shaft body 30 is formed with a mounting boss 21, the middle rotor shaft body 30 is formed with a mounting hole 31 penetrating the middle rotor shaft body 30 along the axial direction of the rotor shaft 100, the mounting hole 31 is configured as a weight reduction space 11, and the mounting boss 21 is installed in the mounting hole 31 and fixedly connected with the middle rotor shaft body 30.

[0033] The mounting boss 21 and the mounting hole 31 simplify the assembly process of the rotor shaft 100, and the end rotor shaft body 20 and the middle rotor shaft body 30 are fixedly connected by mounting the mounting boss 21 in the mounting hole 31, thereby reducing the assembly difficulty and cost. The mounting hole 31 is configured as the weight-reducing space 11, the production material of the rotor shaft 100 can be more reasonably utilized, and the production cost of the rotor shaft 100 can be reduced. In addition, the mounting boss 21 and the mounting hole 31 are cooperatively designed to help control the vibration of the rotor shaft 100, and the vibration level can be further reduced and the stability and reliability of the heat pump compressor can be improved by optimizing the shape, size and position of the mounting boss 21.

[0034] According to some embodiments of the present application, as shown in Figure 1 The inner surface of the mounting hole 31 is provided with a glue layer, the glue layer is adjacent to the end of the mounting hole 31, and the glue layer is connected between the mounting boss 21 and the inner surface of the mounting hole 31.

[0035] The glue layer can be a bearing glue, an epoxy resin glue or the like, and the present application takes the bearing glue as an example for illustration. As an adhesive, the glue layer can tightly connect the mounting boss 21 and the inner surface of the mounting hole 31 together, which not only increases the contact area of the mounting boss 21 and the inner surface of the mounting hole 31, but also improves the firmness and reliability of the connection, thereby ensuring the stability of the rotor shaft 100 during high-speed rotation. The use of the glue layer simplifies the assembly difficulty and cost of the rotor shaft 100 and improves the production efficiency of the rotor shaft 100.

[0036] The glue layer has certain elasticity and toughness, which can resist the impact and vibration of the rotor shaft 100 caused by external load, help to reduce the risk of connection failure caused by load, and improve the overall performance of the rotor shaft 100. The glue layer also has certain lubricating and anti-corrosion properties, which can reduce the friction and wear between the mounting boss 21 and the inner surface of the mounting hole 31. At the same time, the glue layer can also prevent the erosion of corrosive media to the connection part, thereby prolonging the service life of the rotor shaft 100. The glue layer can be applied to mounting bosses 21 and mounting holes 31 of different materials, so that the rotor shaft 100 can be flexibly applied to various material combinations, thereby improving the adaptability and flexibility of the heat pump compressor.

[0037] According to some embodiments of the present application, as shown in Figure 1 When the mounting boss 21 is mounted in the mounting hole 31, the glue layer is heated to connect the mounting boss 21 and the inner surface of the mounting hole 31.

[0038] The heating of the glue layer can significantly increase the activity of the molecules in the glue layer, so that the glue layer can more easily penetrate into the small recesses on the surface of the adherend (i.e., the inner surface of the mounting boss 21 and the mounting hole 31), thereby increasing the contact area and forming a stronger chemical bond, thereby improving the bonding strength and facilitating the stability and reliability of the mounting boss 21 in the mounting hole 31.

[0039] As an example of the present application, when the mounting boss 21 is installed in the mounting hole 31, the rotor shaft 100 can be heated to 600°C and heated for 1.5 hours, so that the glue layer fixes the mounting boss 21 and the inner surface of the mounting hole 31 together, which helps to prolong the connection durability between the mounting boss 21 and the mounting hole 31 and reduce the risk of connection failure caused by environmental factors.

[0040] According to some embodiments of the present application, as shown in Figure 1 The mounting boss 21 can be formed with a weight-reducing structure 22, which can be configured as an open slot, a through hole, or the like, and can remove part of the material to further reduce the weight of the rotor shaft 100, thereby further reducing the inertial force of the rotor shaft 100 during operation, further reducing vibration and noise, and further improving the stability and reliability of the rotor shaft 100.

[0041] According to some embodiments of the present application, as shown in Figure 1 The weight-reducing structure 22 is a weight-reducing groove, which can be configured as an open weight-reducing groove open toward the middle rotor shaft body 30, and can remove part of the material to further reduce the weight of the rotor shaft 100, thereby further reducing the inertial force of the rotor shaft 100 during operation, further reducing vibration and noise, and further improving the stability and reliability of the rotor shaft 100.

[0042] According to some embodiments of the present application, as shown in Figure 1 The end rotor shaft body 20 includes a shaft body 23 and a connecting cover plate 24, the shaft body 23 defines a mounting groove 25 open toward the middle rotor shaft body 30, and the connecting cover plate 24 is arranged at the open end of the mounting groove 25 to define a weight-reducing space 11 in the end rotor shaft body 20, the connecting cover plate 24 and the shaft body 23 are fixedly connected, and the end surface of the connecting cover plate 24 facing the middle rotor shaft body 30 is formed with the mounting boss 21.

[0043] The end rotor shaft body 20 comprises a shaft body 23 and a connecting cover plate 24, so that the overall structure is more compact, which is beneficial to save space and reduce the weight. The shaft body 23 defines a mounting groove 25 which is open to the middle rotor shaft body 30, and the connecting cover plate 24 is arranged at the open end of the mounting groove 25. The end rotor shaft body 20 not only defines a weight-reducing space 11 to reduce the weight of the rotor shaft 100, but also improves the stability and reliability of the rotor shaft 100.

[0044] The connecting cover plate 24 and the shaft body 23 are fixedly connected, for example, the connecting cover plate 24 and the shaft body 23 can be connected by welding, or the connecting cover plate 24 and the shaft body 23 can be fixedly connected by bolts, but the utility model is not limited thereto, and the connecting cover plate 24 and the shaft body 23 can also be fixedly connected by other manners, as long as the connecting cover plate 24 and the shaft body 23 are fixedly connected, which ensures the stability of the connecting cover plate 24 in the mounting groove 25 and avoids loosening or falling off of the connecting cover plate 24 during the mounting process. An installation boss 21 is formed on the end face of the connecting cover plate 24 facing the middle rotor shaft body 30, so that the end rotor shaft body 20 can be more conveniently connected and positioned with the middle rotor shaft body 30 during the installation, and the stability and reliability of the connection are also improved.

[0045] According to some embodiments of the utility model, as shown in Figure 1 The inner side wall of the mounting groove 25 is formed with a limiting surface 26 facing the connecting cover plate 24. The limiting surface 26 provides an accurate positioning reference for the connecting cover plate 24. During the assembly process, the connecting cover plate 24 and the limiting surface 26 abut, so that the connecting cover plate 24 is limited in the mounting groove 25, thereby ensuring the correct position of the connecting cover plate 24 in the mounting groove 25, which helps to reduce the assembly error and improve the assembly accuracy. The abutment of the limiting surface 26 and the connecting cover plate 24 also forms an effective constraint, which can reduce the risk of displacement or loosening of the connecting cover plate 24 in the mounting groove 25, thereby enhancing the stability of the structure and ensuring the reliability of the rotor shaft body 10 during the operation.

[0046] In addition, the design of the limiting surface 26 simplifies the assembly process. During the assembly, the connecting cover plate 24 and the limiting surface 26 are only required to be aligned and abutted, and the assembly can be completed, thereby reducing the assembly steps and required tools and improving the assembly efficiency.

[0047] The heat pump compressor according to the embodiments of the utility model comprises the rotor shaft 100 of the above-mentioned embodiments, which can reduce the processing complexity of the rotor shaft 100, thereby reducing the production cost and time of the rotor shaft 100, and also reducing the weight of the rotor shaft 100, so that the energy consumption required during the operation of the rotor shaft 100 can be reduced, thereby improving the responsiveness and operation stability of the heat pump compressor.

[0048] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A rotor shaft for a heat pump compressor, characterized in that, The utility model relates to a rotor shaft, comprising: a plurality of rotor shaft bodies arranged in sequence along the axial direction of the rotor shaft, and any two adjacent rotor shaft bodies are fixedly connected, and a weight-reducing space is formed in each rotor shaft body; the plurality of rotor shaft bodies comprise two end rotor shaft bodies and a middle rotor shaft body connected between the two end rotor shaft bodies; along the axial direction of the rotor shaft, an installation boss is formed on the end of the end rotor shaft body facing the middle rotor shaft body, the middle rotor shaft body is provided with an installation hole penetrating the middle rotor shaft body along the axial direction of the rotor shaft, the installation hole is configured as the weight-reducing space, and the installation boss is installed in the installation hole and fixedly connected with the middle rotor shaft body.

2. The rotor shaft of claim 1, wherein An adhesive layer is arranged on the inner surface of the installation hole, the adhesive layer is adjacent to the end of the installation hole, and the adhesive layer is connected between the installation boss and the inner surface of the installation hole.

3. The rotor shaft of claim 2, wherein When the installation boss is installed in the installation hole, the adhesive layer is heated to connect the installation boss and the inner surface of the installation hole.

4. The rotor shaft of claim 1, wherein The installation boss is provided with a weight-reducing structure.

5. The rotor shaft of claim 4, wherein The weight-reducing structure is a weight-reducing groove.

6. The rotor shaft of claim 1, wherein The end rotor shaft body comprises a shaft body and a connecting cover plate, the shaft body defines an installation slot open towards the middle rotor shaft body, the connecting cover plate covers the open end of the installation slot so that the end rotor shaft body defines the weight-reducing space, the connecting cover plate and the shaft body are fixedly connected, and the connecting cover plate is provided with the installation boss on the end surface facing the middle rotor shaft body.

7. The rotor shaft of claim 6, wherein The inner side wall of the installation slot is provided with a limiting surface facing the connecting cover plate, and the connecting cover plate and the limiting surface are in abutment.

8. A heat pump compressor characterized by, The utility model relates to a rotor shaft comprising any one of claims 1-7.

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