Vortex electric compressor

Abstract

The utility model relates to the technical field of compressors, and particularly discloses a vortex electric compressor which comprises a machine body, a machine cover, a static disc, a movable disc, a rotating shaft and a bearing seat, the bearing seat is arranged in the machine body, the rotating shaft is embedded in the machine body, the two ends of the rotating shaft are matched with the machine body and the bearing seat respectively, and the static disc is detachably connected with the bearing seat through a positioning pin. The static disc is arranged in the machine body and located on one side of the bearing seat, the static disc is embedded in the machine body, a cavity is formed between the static disc and the bearing seat, the movable disc is arranged in the cavity, the vortex type line of the movable disc is meshed with the vortex type line of the static disc, the machine cover is detachably connected with the machine body through the screw rod, and the machine cover covers the machine body. Leakage of a sealing surface of a compression cavity of the pump body is reduced, compression efficiency is improved, exhaust temperature is reduced, the compressor is integrally optimized and improved, and circulation of lubricating oil in the pump body is achieved.

Description

Technical Field

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

[0002] At present, the compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. It is a key component in the refrigeration system. It sucks in low-temperature, low-pressure refrigerant gas from the intake pipe, compresses it through the piston driven by the motor, and then discharges high-temperature, high-pressure refrigerant gas into the exhaust pipe.

[0003] In the existing technology, the pin-type scroll electric compressor is composed of a compressed gas pump body consisting of a stator, a rotor, and a bearing seat. The stator is provided with high and low pressure oil return channels, and together with the rotor, the bearing seat and the wear-resistant pad, forms a pump body oil circuit circulation system. After the lubricating oil is separated from the oil and gas in the high-pressure exhaust area, it is throttled and reduced in pressure through the oil return hole in the high-pressure area of the stator, and then returns to the back-pressure area of the bearing seat. After circulating in the back-pressure area, it returns to the low-pressure area through the low-pressure oil return channel of the stator, thereby realizing the circulation of the lubricating oil inside the pump body.

[0004] However, in the prior art, a one-way ball valve is provided for pressure relief in the low-pressure oil return channel of the static plate, which makes it difficult to control the back pressure of the dynamic plate and is not conducive to the smooth return of the lubricating oil to the suction area of the pump body. Summary of the Invention

[0005] The purpose of the utility model is to provide a scroll electric compressor, aiming to solve the technical problems in the prior art that a one-way ball valve is set to relieve pressure in the low-pressure oil return channel of the static plate, the back pressure of the dynamic plate is difficult to control, and it is not conducive to the smooth return of lubricating oil to the suction area of the pump body.

[0006] To achieve the above-mentioned purpose, the utility model adopts a scroll electric compressor, including a body, a cover, a stator, a movable plate, a rotating shaft and a bearing seat, the bearing seat is arranged inside the body, the rotating shaft is embedded in the body, and the two ends of the rotating shaft are respectively adapted to the body and the bearing seat, the stator is detachably connected to the bearing seat by a locating pin, and is located on one side of the bearing seat, and the stator is embedded in the body, a cavity is formed between the stator and the bearing seat, the movable plate is arranged in the cavity, and the vortex profile of the movable plate is engaged with the vortex profile of the stator, the cover is detachably connected to the body by a screw, and the cover covers the body.

[0007] Wherein, a back cavity pressure relief channel is provided between the rotating shaft and the bearing seat.

[0008] The stator plate has a pressure relief passage, which is composed of a first pressure relief hole, a throttling hole and a second pressure relief hole, and the first pressure relief hole, the throttling hole and the second pressure relief hole are in communication.

[0009] The scroll electric compressor further includes hanging rings, which are provided in multiple groups. Each group of hanging rings is fixedly connected to the machine body and is located on the outer wall of the machine body.

[0010] The scroll electric compressor further includes mounting units, and the number of the mounting units is two groups. Each group of mounting units is fixedly connected to the corresponding body and cover, and is located on one side of the corresponding body and cover.

[0011] Among them, each group of the installation units includes an installation component, a support frame and an adjustment component. The support frame is rotatably connected to the installation component and is sleeved on the outer wall of the installation component. The adjustment component is slidably connected to the support frame and is located on the inner side of the support frame.

[0012] Among them, the mounting assembly includes a mounting flange and a locking cover, the mounting flange has a snap-fit boss, the support bracket is sleeved onto the outer wall of the mounting flange, and the support bracket and the snap-fit boss are adapted to each other, the locking cover is threadedly connected to the mounting flange, and is located on one side of the mounting flange.

[0013] A scroll electric compressor of the present invention optimizes the lubricating oil circuit as a whole, adds a pressure relief channel for the back pressure chamber, and optimizes the oil circuit of the stator plate, so that the oil content of the refrigerant in the suction area of the stator plate is improved. During the refrigerant compression process, the stator plate and the moving plate obtain more effective lubrication, cooling and sealing effects, thereby reducing leakage on the sealing surface of the compression chamber of the pump body, improving compression efficiency, and lowering exhaust temperature, so that the compressor as a whole is optimized and improved, and lubricating oil circulation inside the pump body is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 paying any creative work.

[0015] Figure 1 The utility model is a cross-sectional view of the internal structure of a scroll electric compressor.

[0016] Figure 2 It is an enlarged view of the local structure of a scroll electric compressor of the present utility model.

[0017] Figure 3 It is a structural diagram of the static disk of the utility model.

[0018] Figure 4 This utility model Figure 3 AA line internal structure cross-sectional view.

[0019] Figure 5 It is a structural schematic diagram of the installation unit of the utility model.

[0020] Figure 6 It is a front view of the installation unit of the present utility model.

[0021] Figure 7 It is a structural schematic diagram of the mounting flange of the utility model.

[0022] Figure 8 It is a partial structural diagram of the control component of the utility model.

[0023] 101-machine body, 102-machine cover, 103-static plate, 104-moving plate, 105-rotating shaft, 106-bearing seat, 107-cavity, 108-back cavity pressure relief channel, 109-pressure relief passage, 110-first pressure relief hole, 111-throttling hole, 112-second pressure relief hole, 113-hanging ring, 114-mounting flange, 115-locking cover, 116-clamping boss, 117-support panel, 118-rubber panel, 119-rectangular platform, 120-threaded column, 121-threaded ring, 122-frame, 123-shock-absorbing rubber strip. DETAILED DESCRIPTION

[0024] See also Figures 1 to 8 , Figure 1 This is a cross-sectional view of the internal structure of a scroll electric compressor of the present invention; Figure 2 This is an enlarged view of the partial structure of a scroll electric compressor of the present utility model; Figure 3 It is a structural diagram of the static disk of the utility model; Figure 4 This utility model Figure 3 AA line internal structure cross-sectional view; Figure 5 It is a structural diagram of the installation unit of the utility model; Figure 6 It is a front view of the installation unit of the utility model; Figure 7 It is a structural schematic diagram of the mounting flange of the utility model; Figure 8 It is a partial structural diagram of the control component of the utility model.

[0025] The utility model provides a scroll electric compressor, including a body 101, a cover 102, a stator 103, a rotor 104, a rotating shaft 105 and a bearing seat 106, wherein the bearing seat 106 is arranged inside the body 101, the rotating shaft 105 is embedded in the body 101, and the two ends of the rotating shaft 105 are respectively adapted to the body 101 and the bearing seat 106, and the stator 103 is detachable from the bearing seat 106 by a positioning pin. The movable disc 104 is disposed in the cavity 107, and the vortex profile of the movable disc 104 is engaged with the vortex profile of the stator disc 103. The cover 102 is detachably connected to the body 101 through a screw, and the cover 102 covers the body 101.

[0026] In this embodiment, the bearing seat 106 is arranged inside the body 101, and the bearing seat 106 installs and places the rotating shaft 105. The stator plate 103 is arranged on one side of the bearing seat 106, and the movable plate 104 is embedded between the stator plate 103 and the bearing seat 106. The movable plate 104 and the stator plate 103 are adapted to each other, so that the refrigerant has sufficient lubricating oil for lubrication, cooling and sealing of the sealing surface during the compression process, thereby reducing leakage of the sealing surface of the pump compression chamber, improving compression efficiency and reducing exhaust temperature.

[0027] Furthermore, a back cavity pressure relief channel 108 is provided between the rotating shaft 105 and the bearing seat 106 .

[0028] In this embodiment, before optimization, a shaft seal is used to seal the bearing and the bearing seat 106. After optimization, the shaft seal is cancelled, and a back cavity pressure relief channel 108 is set between the rotating shaft 105 and the bearing seat 106. The width of the back cavity pressure relief channel 108 is adjusted accordingly according to real-time usage.

[0029] Furthermore, the stator plate 103 has a pressure relief passage 109 , which is composed of a first pressure relief hole 110 , a throttle hole 111 and a second pressure relief hole 112 , and the first pressure relief hole 110 , the throttle hole 111 and the second pressure relief hole 112 are in communication.

[0030] In this embodiment, the pressure relief passage 109 composed of the first pressure relief hole 110 , the throttling hole 111 and the second pressure relief hole 112 cooperates with the back cavity pressure relief passage 108 of the bearing seat 106 on the stator plate 103 to form an oil circuit.

[0031] Furthermore, the scroll electric compressor further includes a plurality of hanging rings 113 . The hanging rings 113 are provided in groups. Each group of hanging rings 113 is fixedly connected to the body 101 and is located on the outer wall of the body 101 .

[0032] In this embodiment, the hanging ring 113 can facilitate the hoisting and transportation of the scroll electric compressor, making the transportation of the scroll electric compressor more convenient.

[0033] Furthermore, the scroll electric compressor also includes two groups of mounting units, each group of mounting units is fixedly connected to the corresponding body 101 and the cover 102, and is located on one side of the corresponding body 101 and the cover 102.

[0034] In this embodiment, the scroll electric compressor can be installed and fixed by the installation unit, and it can be ensured that the scroll electric compressor can be kept in a forward position when installed at any point, ensuring the normal and stable operation of the scroll electric compressor.

[0035] Furthermore, each group of the mounting units includes a mounting assembly, a support frame and an adjustment assembly. The support frame is rotatably connected to the mounting assembly and is sleeved on the outer wall of the mounting assembly. The adjustment assembly is slidably connected to the support frame and is located on the inner side of the support frame.

[0036] In this embodiment, the mounting assembly connects the body 101 or the cover 102 to the support frame, and the support frame can rotate 360° on one side of the body 101 or the cover 102. During installation, after the support frame is fixed to the desired position, the body 101 is rotated so that the body 101 rotates to the forward position, and the bottom of the body 101 is limited by the regulating assembly to prevent the body 101 from flipping over during use.

[0037] Furthermore, the mounting assembly includes a mounting flange 114 and a locking cover 115, the mounting flange 114 has a snap-fit boss 116, the support frame is sleeved onto the outer wall of the mounting flange 114, and the support frame and the snap-fit boss 116 are adapted to each other, the locking cover 115 is threadedly connected to the mounting flange 114, and is located on one side of the mounting flange 114.

[0038] In this embodiment, the mounting flange 114 is mounted to one side of the body 101 or the cover 102 by bolts, and the snap-fit boss 116 is embedded in the interior of the support frame to improve the connection strength between the support frame and the mounting flange 114. After the mounting flange 114 is embedded, the locking cover 115 is threadedly connected to the mounting flange 114 and is located on one side of the mounting flange 114 and the support frame. The support frame is fixed by the mounting flange 114 and the locking cover 115, and the support can be rotated between the locking cover 115 and the mounting flange 114.

[0039] Furthermore, the regulating component includes a support panel 117, a rubber panel 118, a rectangular platform 119, a threaded column 120 and a threaded ring 121. The rubber panel 118 is fixedly connected to the support panel 117 and is located at the upper end of the support panel 117. The rectangular platform 119 is fixedly connected to the support panel 117 and is located on one side of the support panel 117. The threaded column 120 is fixedly connected to the rectangular platform 119 and is located on one side of the rectangular platform 119. The threaded ring 121 is threadedly connected to the threaded column 120 and is sleeved on the outer wall of the threaded column 120.

[0040] In this embodiment, the support panel 117 supports and fixes the rubber panel 118, and at the same time, the support panel 117 and the rubber panel 118 support the body 101 together. The rubber panel 118 can avoid hard contact between the support panel 117 and the body 101, reduce the loss of the body 101, and the rubber panel 118 can play an anti-slip role, further improving the operating stability of the body 101. The rectangular platform 119 can prevent the regulating component from rotating on one side of the support frame. The threaded column 120 and the threaded ring 121 fix the regulating component to one side of the support frame to support the body 101.

[0041] Furthermore, the support frame includes a frame body 122 and a shock-absorbing rubber strip 123. The frame body 122 has a support guide groove and a shock-absorbing groove. The support guide groove is arranged on one side of the frame body 122. The number of the shock-absorbing grooves is multiple groups, and each group of the shock-absorbing grooves is respectively arranged at the lower end of the frame body 122. The number of the shock-absorbing rubber strip 123 is multiple groups, and each group of the shock-absorbing rubber strip 123 is respectively arranged at the lower end of the frame body 122, and each group of the shock-absorbing rubber strip 123 is respectively embedded in the corresponding shock-absorbing groove.

[0042] In this embodiment, in the frame 122, the support guide groove is used to limit the support of the regulating component, and at the same time, the height of the regulating component is adjusted inside the support guide groove to adapt to the installation angle and installation position of the scroll electric compressor. The shock-absorbing strip 123 is embedded in the bottom of the frame 122 and adapted to its shock-absorbing groove. The shock-absorbing strip 123 can play a shock-absorbing role in the operation of the compressor, thereby ensuring the support stability of the support frame. The shock-absorbing strip 123 is in an I-shape, which can improve the installation stability of the shock-absorbing strip 123 and avoid the problem of misalignment or displacement of the shock-absorbing strip 123, which affects the stability of the support frame.

[0043] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the utility model.

Claims

1. A scroll electric compressor, characterized in that: The invention comprises a machine body, a machine cover, a stator plate, a rotor plate, a rotating shaft and a bearing seat, wherein the bearing seat is arranged inside the machine body, the rotating shaft is embedded in the machine body, and the two ends of the rotating shaft are respectively adapted to the machine body and the bearing seat, the stator plate is detachably connected to the bearing seat by a locating pin, and is located on one side of the bearing seat, and the stator plate is embedded in the machine body, a cavity is formed between the stator plate and the bearing seat, the rotor plate is arranged in the cavity, and the vortex profile of the rotor plate is engaged with the vortex profile of the stator plate, the machine cover is detachably connected to the machine body by a screw, and the machine cover covers the machine body.

2. The scroll electric compressor according to claim 1, wherein: A back cavity pressure relief channel is provided between the rotating shaft and the bearing seat.

3. The scroll electric compressor according to claim 1, wherein: The stator plate has a pressure relief passage, which is composed of a first pressure relief hole, a throttle hole, and a second pressure relief hole. The first pressure relief hole, the throttle hole, and the second pressure relief hole are in communication.

4. The scroll electric compressor according to claim 1, wherein: The scroll electric compressor further includes hanging rings, which are provided in multiple groups. Each group of hanging rings is fixedly connected to the machine body and is located on the outer wall of the machine body.

5. The scroll electric compressor according to claim 1, wherein: The scroll electric compressor further includes two groups of mounting units. Each group of mounting units is fixedly connected to the corresponding body and cover and is located on one side of the corresponding body and cover.

6. The scroll electric compressor according to claim 5, wherein: Each group of the mounting units includes a mounting assembly, a support frame and an adjustment assembly. The support frame is rotatably connected to the mounting assembly and is sleeved on the outer wall of the mounting assembly. The adjustment assembly is slidably connected to the support frame and is located on the inner side of the support frame.

7. The scroll electric compressor according to claim 6, wherein: The mounting assembly includes a mounting flange and a locking cover. The mounting flange has a snap-fit boss. The support bracket is sleeved onto the outer wall of the mounting flange, and the support bracket and the snap-fit boss are adapted to each other. The locking cover is threadedly connected to the mounting flange and is located on one side of the mounting flange.

Images