Scroll compressor and air conditioner

Abstract

The present disclosure provides a scroll compressor and an air conditioner. The scroll compressor includes: a fixed scroll, a movable scroll and a sealing assembly. A compression chamber is formed between the fixed scroll and the movable scroll. The sealing assembly is arranged on the back of the fixed scroll. The back of the fixed scroll is opposite to the movable scroll. A back pressure chamber is formed between the sealing assembly and the fixed scroll. The scroll compressor also includes a connecting pipe arranged outside the fixed scroll and the movable scroll. One end of the connecting pipe can be connected to the compression chamber to guide the gas from the compression chamber. The other end of the connecting pipe can be connected to the back pressure chamber to guide the gas guided from the compression chamber into the back pressure chamber. According to the present disclosure, the gas impact between the sealing assembly and the high and low pressure partition plate caused by the excessive pressure of the gas directly conducted through the medium pressure hole opened on the fixed scroll during startup is effectively avoided or reduced. A new floating seal form is provided, which changes the limitation of the inability to control the gas pressure caused by opening the medium pressure hole in the fixed scroll in the past.

Description

Technical Field

[0001] The present disclosure relates to the technical field of compressors, and in particular to a scroll compressor and an air conditioner. Background Art

[0002] Scroll compressors have the advantages of simple structure, small size, light weight, low noise, high mechanical efficiency and smooth operation. For scroll compressors that use a sealing cover floating seal for gas sealing, that is, compressors with axial sealing, the sealing cover floats along the back of the static scroll. However, there is a certain distance between the static scroll and the high and low pressure separator plates of the axially sealed compressor. During the operation of the compressor, the static scroll floats axially, and the sealing component is lifted upward due to the compression of the medium-pressure gas in the compression chamber. Since the fixed-frequency compressor has a high starting speed and a large initial starting load, it is very easy for the sealing component to collide with the high and low pressure separator plates, affecting the normal working state of the sealing component (whether it is stable, whether it can normally establish a channel with the high and low pressure separator plates), and may even cause the fuselage to shake, thereby affecting the stability of the compressor.

[0003] Since the scroll compressor in the prior art has a large initial starting load, it is very easy to cause metal collision between the sealing component and the high and low pressure partition plates, affecting the normal working state of the sealing component and even causing the fuselage to shake, thereby affecting the stability of the compressor and other technical problems. Therefore, the present invention studies and designs a scroll compressor and air conditioner.

[0004] Public Content

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the scroll compressor in the prior art, that is, the initial starting load is large, which easily causes metal collision between the sealing component and the high and low pressure partition plates, affects the normal working state of the sealing component, and may even cause the body to shake, thereby affecting the stability of the compressor, thereby providing a scroll compressor and air conditioner.

[0006] In order to solve the above problems, the present disclosure provides a scroll compressor, which includes:

[0007] A fixed scroll, a movable scroll and a sealing assembly, wherein a compression chamber is formed between the fixed scroll and the movable scroll, the sealing assembly is arranged on the back side of the fixed scroll, the back side of the fixed scroll is opposite to the movable scroll, and a back pressure chamber is formed between the sealing assembly and the fixed scroll;

[0008] The scroll compressor also includes a connecting pipe arranged outside the fixed scroll and the movable scroll, one end of the connecting pipe can be connected to the compression chamber to extract gas from the compression chamber, and the other end of the connecting pipe can be connected to the back pressure chamber to guide the gas extracted from the compression chamber into the back pressure chamber.

[0009] In some embodiments, a first conducting channel is provided inside the static scroll, one end of the first conducting channel is connected to the back pressure chamber, and the other end of the first conducting channel extends to the outside of the static scroll and is connected to the other end of the connecting pipe.

[0010] In some embodiments, the first conducting channel includes a first radial channel extending in a radial direction of the static scroll and a first axial channel extending in an axial direction of the static scroll, one end of the first radial channel extends to the outer peripheral surface of the static scroll and is connected to the other end of the connecting pipe, the upper end of the first axial channel is connected to the back pressure chamber, and the lower end extends to communicate with the first radial channel.

[0011] In some embodiments, a first connecting seat and a first fastener are further included, and the other end of the connecting pipe is fixed to the static vortex through the first connecting seat, and the first fastener fixes the first connecting seat to the outer peripheral wall of the static vortex.

[0012] In some embodiments, a second conducting channel is provided inside the movable scroll, one end of the second conducting channel is communicated with the compression chamber, and the other end of the second conducting channel extends to the outside of the movable scroll;

[0013] The scroll compressor further includes an upper bracket, wherein a third conducting channel is disposed inside the upper bracket, wherein one end of the third conducting channel is communicated with the second conducting channel, and the other end of the third conducting channel extends to the outside of the upper bracket and is communicated with one end of the connecting pipe.

[0014] In some embodiments, the second conducting channel is a second axial channel extending along the axial direction of the movable scroll, the upper end of the second axial channel is connected to the compression chamber, and the lower end of the second axial channel extends to communicate with the third conducting channel;

[0015] The third conducting channel includes a second radial channel opened along the radial direction of the upper bracket and a third axial channel opened along the axial direction of the upper bracket, the upper end of the third axial channel is connected to the lower end of the second axial channel, the lower end of the third axial channel is connected to the second radial channel, and the second radial channel extends radially to the outer peripheral surface of the upper bracket and is connected to one end of the connecting pipe.

[0016] In some embodiments, a second connecting seat and a second fastener are further included, one end of the connecting pipe is fixed to the upper bracket through the second connecting seat, and the second fastener fixes the second connecting seat to the outer peripheral wall of the upper bracket.

[0017] In some embodiments, a fourth conducting channel is provided inside the movable scroll, one end of the fourth conducting channel is communicated with the compression chamber, and the other end of the fourth conducting channel extends to the outside of the movable scroll and is communicated with the other end of the connecting pipe.

[0018] In some embodiments, the fourth conducting channel includes a fourth axial channel extending along the axial direction of the movable scroll and a third radial channel extending along the radial direction of the movable scroll, the upper end of the fourth axial channel is connected to the compression chamber, and the lower end extends to communicate with the third radial channel; the third radial channel extends radially to the outer peripheral surface of the movable scroll and is connected to one end of the connecting pipe.

[0019] In some embodiments, a third connecting seat and a third fastener are further included, one end of the connecting pipe is fixed to the movable scroll through the third connecting seat, and the third fastener fixes the third connecting seat to the outer peripheral wall of the movable scroll.

[0020] In some embodiments, a clearance hole is opened on the upper bracket, and the clearance hole accommodates the connecting pipe to pass therethrough and enables one end of the connecting pipe to be connected to the outer peripheral wall of the movable scroll.

[0021] In some embodiments, the connecting pipe includes at least one bent pipe segment; and / or a portion of the connecting pipe is configured to have an elastically retractable pipe segment structure.

[0022] The present disclosure also provides an air conditioner, comprising the scroll compressor as described in any of the preceding items.

[0023] The scroll compressor and air conditioner provided by the present disclosure have the following beneficial effects:

[0024] 1. The present invention uses a connecting pipe structure provided outside the movable scroll and the fixed scroll to guide the gas in the compression chamber between the movable scroll and the fixed scroll to the back pressure chamber on the back of the fixed scroll, so that the gas in the back pressure chamber (intermediate pressure chamber) is slowly injected, so that the pressure in the back pressure chamber is slowly built up, and the gas impact between the sealing component and the high and low pressure separation plate caused by the excessive pressure of the gas in the back pressure chamber directly conducted through the intermediate pressure hole opened on the fixed scroll during startup is effectively avoided or reduced, and a new floating seal form is provided, which changes the limitation of not being able to control the gas pressure caused by opening the intermediate pressure hole in the fixed scroll in the past;

[0025] 2. The present disclosure provides a method of buffering the impact of the seal and the partition by setting an exhaust hole between the movable scroll and the upper bracket, and establishing a channel between the back of the fixed scroll and the upper bracket; the present disclosure also provides a new gas circulation form, which provides a new gas circulation form by establishing a gas channel between the movable scroll and the upper bracket to guide the gas to the back pressure chamber of the fixed scroll or by establishing a gas channel inside the movable scroll to directly guide the gas to the back pressure chamber of the fixed scroll. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the scroll compressor according to the first embodiment of the present disclosure;

[0027] Figure 2 It is a partially enlarged schematic diagram of a scroll compressor according to Embodiment 1 of the present disclosure;

[0028] Figure 3 This is an exploded schematic diagram of a pump assembly according to Embodiment 1 of the present disclosure;

[0029] Figure 4 Schematic diagram of the structure of the static scroll of the first embodiment of the present disclosure;

[0030] Figure 5 This is a schematic diagram of the structure of the adapter assembly of Example 1 of the present disclosure;

[0031] Figure 6 Schematic diagram of the upper bracket structure of the first embodiment of the present disclosure

[0032] Figure 7 Schematic diagram of the structure of the movable scroll of the first embodiment of the present disclosure

[0033] Figure 8 Schematic diagram of the pump assembly structure of the second embodiment of the present disclosure

[0034] Fig. 9 Schematic diagram of the structure of the moving disk assembly of the second embodiment of the present disclosure

[0035] The reference numerals are as follows:

[0036] 1. High and low pressure separation plate; 2. Stationary scroll; 3. Guide column; 4. Shell; 5. Upper bracket; 6. Motor; 7. Rotor; 8. Lower support ring; 9. Lower cover; 10. Lower bracket; 11. Lower bearing; 12. Crankshaft; 13. Motor fixing bracket; 14. Eccentric sleeve; 15. Moving scroll; 16. Cross ring; 17. Screw fastener; 18. Sealing assembly; 19. Exhaust pipe; 20. Check valve seat; 21. Screws; 22. Upper cover;

[0037] 100, compression chamber; 200, back pressure chamber; 101, connecting pipe; 102, first connecting seat; 103, first conducting channel; 103a, first radial channel; 103b, first axial channel; 104, first fastener; 105, second radial channel; 106, third axial channel; 107, second conducting channel; 201, fourth conducting channel; 201a, fourth axial channel; 201b, third radial channel; 203, elastic tube section structure; 205, third connecting seat; 206, clearance hole. DETAILED DESCRIPTION

[0038] like Figure 1-9 As shown, the present disclosure provides a scroll compressor, which includes:

[0039] A fixed scroll 2, a movable scroll 15 and a sealing assembly 18, wherein a compression chamber 100 is formed between the fixed scroll 2 and the movable scroll 15, and the sealing assembly 18 is arranged on the back side of the fixed scroll 2, the back side of the fixed scroll 2 is opposite to the movable scroll 15, and a back pressure chamber 200 is formed between the sealing assembly 18 and the fixed scroll 2;

[0040] The scroll compressor also includes a connecting pipe 101 arranged outside the fixed scroll 2 and the movable scroll 15, one end of the connecting pipe 101 can be connected to the compression chamber 100 to guide the gas out of the compression chamber 100, and the other end of the connecting pipe 101 can be connected to the back pressure chamber 200 to guide the gas guided out of the compression chamber 100 into the back pressure chamber 200.

[0041] The present invention discloses a connecting pipe structure provided on the outside of the movable scroll and the fixed scroll, so as to discharge the gas in the compression chamber between the movable scroll and the fixed scroll and guide it to the back pressure chamber on the back side of the fixed scroll, so that the gas in the back pressure chamber (medium pressure chamber) is slowly injected, and the pressure in the back pressure chamber is slowly built up, thereby effectively avoiding or reducing the gas impact between the sealing component and the high and low pressure partition plates caused by the excessive gas pressure in the back pressure chamber directly conducted through the medium pressure hole opened on the fixed scroll during startup, and providing a new floating seal form, which changes the limitation of not being able to control the gas pressure caused by opening the medium pressure hole in the fixed scroll in the past.

[0042] The present invention provides a plurality of conducting channels between the movable scroll and the upper bracket, and the two can realize gas transmission by means of oil film sealing, and a gas pipeline channel is provided between the back of the static scroll and the upper bracket, and the refrigerant can be compressed to the gas circuit at the back of the static scroll. When a certain pressure is reached, the sealing component slowly floats upward and fits with the high and low pressure partition plates. Alternatively, in the new floating seal structure, by adding a gas transmission passage between the movable scroll and the upper bracket pipeline, the impact between the sealing component and the high and low pressure partition plates can also be buffered, the noise of the compressor can be reduced, and the stability of the compressor can be improved.

[0043] In some embodiments, a first conducting channel 103 is provided inside the static scroll 2, one end of the first conducting channel 103 is communicated with the back pressure chamber 200, and the other end extends to the outside of the static scroll 2 and is communicated with the other end of the connecting pipe 101. The present disclosure also enables the other end of the connecting pipe to be connected through the first conducting channel provided inside the static scroll and to be guided into the back pressure chamber on the back side of the static scroll through the first channel.

[0044] Figure 1 As shown, the scroll compressor is mainly composed of a fixed scroll 2, a movable scroll 15, an upper bracket 5, a lower bracket 10, a cross ring 16, a crankshaft 12, etc.

[0045] The upper bracket 5 and the lower bracket 10 are both interference fit with the shell 4, and both are fixed to the shell 4 by welding after being pressed into the shell 4. The rotor 7 is fixed to the motor 6 by shrink fitting, and the motor 6 is fixed to the shell 4 by the motor fixing bracket 13. The movable scroll 15 and the fixed scroll 2 are installed on the upper bracket 5 in a manner of 180 degrees difference in phase angle, and the sealing assembly 18 is installed on the back of the fixed scroll 2 by riveting. The high and low pressure separation plate 1 and the upper cover 22 are fixed to the shell 4 by welding, and the high and low pressure separation plate 1 and the upper cover 22 form a high-pressure exhaust chamber. The guide column 4 is fixed to the upper bracket 5 by a screw fastener 17. Since the fixed scroll 2 has axial flexibility, it can float axially along the guide column 4 during the operation of the compressor, and can drive the sealing assembly 18 to fit the high and low pressure separation plate 1 upward to form a sealed exhaust channel.

[0046] When the compressor starts to operate, the motor 6 drives the crankshaft 12 to rotate. The crank section of the crankshaft 12 is equipped with an eccentric sleeve 14 with radial flexibility. The eccentric sleeve 14 drives the movable scroll 15 to move. Under the anti-rotation restriction of the cross slip ring 16, the movable scroll 15 performs translational motion with a fixed radius around the center of the crankshaft 12. The refrigerant entering from the suction pipe is sucked into the crescent-shaped suction cavity formed by the movable scroll 15 and the fixed scroll 2. After being compressed, it enters the high-pressure cavity formed by the upper cover 22 and the high-low pressure partition plate 1 through the exhaust hole of the fixed scroll 2 and the check valve seat 20, and then is discharged through the exhaust pipe 19.

[0047] In some embodiments, the first conducting channel 103 includes a first radial channel 103a extending in the radial direction of the static scroll 2 and a first axial channel 103b extending in the axial direction of the static scroll 2, one end of the first radial channel 103a extends to the outer peripheral surface of the static scroll 2 and communicates with the other end of the connecting pipe 101, the upper end of the first axial channel 103b is connected to the back pressure chamber 200, and the lower end extends to communicate with the first radial channel 103a. This is a further preferred structural form of the first conducting channel of the present disclosure, that is, the first axial channel is used to communicate with the back pressure chamber, and the first radial channel is used to communicate with the first axial channel at one end and the connecting pipe outside the static scroll at the other end, so that the gas in the connecting pipe flows radially through the first radial channel and enters the back pressure chamber through the first axial channel.

[0048] In some embodiments, a first connecting seat 102 and a first fastener 104 are further included, the other end of the connecting pipe 101 is fixed to the static scroll 2 through the first connecting seat 102, and the first fastener 104 fixes the first connecting seat 102 to the outer peripheral wall of the static scroll 2. The present disclosure can effectively fix the connecting pipe to the static scroll through the first connecting seat, and can fasten the first connecting seat through the first fastener, and the first fastener is preferably a bolt or a screw.

[0049] Embodiment 1

[0050] In some embodiments, a second conducting channel 107 is disposed inside the movable scroll 15, one end of the second conducting channel 107 is connected to the compression chamber 100, and the other end of the second conducting channel 107 extends to the outside of the movable scroll 15;

[0051] The scroll compressor further includes an upper bracket 5 , wherein a third conducting channel is disposed inside the upper bracket 5 , wherein one end of the third conducting channel is connected to the second conducting channel 107 , and the other end of the third conducting channel extends to the outside of the upper bracket 5 and is connected to one end of the connecting pipe 101 .

[0052] The present invention also enables the gas in the compression chamber to be discharged through the second conducting channel inside the movable scroll and the third conducting channel on the upper bracket, and to be guided to the connecting pipe through the third conducting channel, and to the back pressure chamber on the back of the fixed scroll through the connecting pipe.

[0053] In some embodiments, the second conducting channel 107 is a second axial channel extending along the axial direction of the movable scroll 15, the upper end of the second axial channel is connected to the compression chamber 100, and the lower end extends to communicate with the third conducting channel;

[0054] The third conducting channel includes a second radial channel 105 opened along the radial direction of the upper bracket 5 and a third axial channel 106 opened along the axial direction of the upper bracket 5, the upper end of the third axial channel 106 is connected to the lower end of the second axial channel, the lower end of the third axial channel 106 is connected to the second radial channel 105, and the second radial channel 105 extends radially to the outer peripheral surface of the upper bracket 5 and is connected to one end of the connecting pipe 101.

[0055] This is a further preferred structural form of the second conducting channel disclosed in the present invention, that is, it is formed as a second axial channel extending axially, which can conduct the airflow from the axial direction; the third axial channel in the third conducting channel can be connected with the second axial channel on the movable scroll to introduce gas, and the gas in the third axial channel is discharged to the connecting pipe outside the upper bracket through the second radial channel, thereby completing the function of effectively conducting the gas in the compression chamber to the connecting pipe.

[0056] In some embodiments, a second connection seat (not shown) and a second fastener (not shown) are further included, and one end of the connection pipe 101 is fixed to the upper bracket 5 through the second connection seat, and the second fastener fixes the second connection seat to the outer peripheral wall of the upper bracket 5. The present disclosure can effectively fix the connection pipe to the upper bracket through the second connection seat, and can fasten the second connection seat through the second fastener, and the second fastener is preferably a bolt or a screw.

[0057] like Figure 2-Figure 7 As shown, in the first embodiment of the present invention, a first conducting channel 103 is provided on the side of the static scroll 2, and the connecting pipe 101 is connected by installing a connector element (i.e., the first connecting seat 102), and the static scroll 2 and the connecting pipe 101 are fastened by bolts (i.e., the first fastener 104). The connecting pipe 101 has a guiding function, and it can be connected to the third conducting channel in the upper bracket 5 to form a connecting passage between the upper bracket and the static scroll. The upper end face of the upper bracket 5 extends axially to form a third axial channel 106, which has a depth of 15 mm and intersects with the radial threaded hole (the second radial channel 105) at 90°. At the same time, a second conducting channel 107 is provided on the movable scroll 15, with an inner diameter of 1.5 mm, and its exhaust end is connected to the above-mentioned third axial channel 106, and the two are sealed by means of an oil film seal.

[0058] When the scroll compressor is working, the low-pressure refrigerant in the movable scroll passes through the exhaust hole (the second conducting channel 107) and is discharged by the oil film seal. Figure 5The first connecting seat 102 enters the back pressure hole of the static vortex. When the gas force reaches a certain level, the radial channel of the movable vortex together with the buffer reversing channel of the adapter is introduced into the back of the static vortex. At this time, the sealing assembly is gradually and slowly lifted and fits the high and low pressure separation plate until the gas in the static vortex and the high and low pressure separation plate completely form a channel. At this time, under the action of pressure buffering, the impact between the sealing assembly 18 and the high and low pressure separation plate 1 can be slowed down, the noise can be reduced, and the stability can be effectively guaranteed.

[0059] Embodiment 2

[0060] In some embodiments, a fourth conducting channel 201 is provided inside the movable scroll 15, one end of the fourth conducting channel 201 is communicated with the compression chamber 100, and the other end extends to the outside of the movable scroll 15 and is communicated with the other end of the connecting pipe 101. The present disclosure also enables the gas in the compression chamber to be directly discharged through the fourth conducting channel through the fourth conducting channel inside the movable scroll, and is guided to the connecting pipe through the fourth conducting channel, and is guided to the back pressure chamber on the back of the fixed scroll through the connecting pipe.

[0061] In some embodiments, the fourth conducting channel 201 includes a fourth axial channel 201a extending along the axial direction of the movable scroll 15 and a third radial channel 201b extending along the radial direction of the movable scroll 15, the upper end of the fourth axial channel 201a is connected to the compression chamber 100, and the lower end extends to be connected to the third radial channel 201b; the third radial channel 201b extends radially to the outer peripheral surface of the movable scroll 15 and is connected to one end of the connecting pipe 101.

[0062] This is a further preferred structural form of the fourth conducting channel disclosed in the present invention, including an axially extending fourth axial channel, which can conduct the airflow from the axial direction; the third radial channel can be connected to the fourth axial channel to introduce gas, and the gas is directly discharged to the connecting tube outside the upper bracket through the third radial channel, thereby completing the function of effectively conducting the gas in the compression chamber to the connecting tube.

[0063] In some embodiments, a third connection seat 205 and a third fastener (not shown) are further included, one end of the connection pipe 101 is fixed to the movable scroll 15 through the third connection seat 205, and the third fastener fixes the third connection seat to the outer peripheral wall of the movable scroll 15. The present disclosure can effectively fix the connection pipe to the movable scroll through the third connection seat, and can play a role in fastening the third connection seat through the third fastener, and the third fastener is preferably a bolt or a screw.

[0064] In some embodiments, a clearance hole 206 is provided on the upper bracket 5, and the clearance hole 206 accommodates the connection pipe 101 to pass therethrough, and enables one end of the connection pipe 101 to be connected to the outer peripheral wall of the movable scroll 15. The disclosure provides the clearance hole on the upper bracket, so that interference between the connection pipe and the upper bracket can be prevented during the movement of the movable scroll, thereby improving the reliability of the operation of the compressor.

[0065] In some embodiments, the connecting pipe 101 includes at least one bent pipe section; and / or, a portion of the connecting pipe 101 is configured to have an elastically retractable elastic pipe section structure 203. This is a further preferred structural form of the connecting pipe disclosed in the present invention, and the elastic pipe section structure can be scaled in length to meet the amount of activity generated by the meshing movement of the moving and stationary scrolls.

[0066] like Figure 8 As shown, in the second embodiment of the present invention, unlike the first embodiment, the gas guide channel is arranged between the fixed scroll 2 and the upper bracket 5. The two are respectively fixed on the fixed scroll 2 and the upper bracket 5 by means of the first connecting seat 102 and the third connecting seat 205, and a clearance hole 206 is opened in the upper bracket 5 for avoiding the connecting pipe 101 when the movable scroll engages and rotates. A stretchable and contractible spring (elastic pipe section structure 203) is provided on the connecting pipe 101, which can scale the length of the connecting pipe 101 while rotating with the movable scroll to meet the activity generated by the engagement of the movable and fixed scrolls.

[0067] When the scroll compressor is working, the low-pressure refrigerant in the movable scroll 15 passes through the third radial channel 201b and then enters the back pressure chamber 200 of the static scroll through the adapter assembly (first connecting seat 102). The pressure in the pipeline is sealed under the action of the first connecting seat 102 and slowly introduced into the back of the static scroll. When a certain pressure is reached, the sealing assembly is gradually and slowly lifted up and fits with the high and low pressure separation plates until an exhaust channel is formed between the static scroll and the high and low pressure separation plates. At this time, the impact between the sealing assembly and the high and low pressure separation plates is reduced. Since the floating channel of the sealing assembly is effectively improved, the buffering and noise reduction effect is better.

[0068] Moreover, the above two implementation methods both satisfy the requirement of guiding the gas to the back pressure chamber of the static scroll through the movable scroll, which changes the current conventional structure that only exhaust holes can be opened in the static scroll to introduce the gas in the compression chamber into the back sealing cover. It can be used as an implementation method of a new floating seal form.

[0069] The present disclosure also provides an air conditioner, comprising the scroll compressor as described in any of the preceding items.

[0070] The above is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure. The above is only a preferred implementation of the present disclosure. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present disclosure, and these improvements and variations should also be regarded as the protection scope of the present disclosure.

Claims

1. A scroll compressor, characterized in that: include: A fixed scroll (2), a movable scroll (15) and a sealing assembly (18), wherein a compression chamber (100) is formed between the fixed scroll (2) and the movable scroll (15), the sealing assembly (18) is arranged on the back side of the fixed scroll (2), the back side of the fixed scroll (2) is opposite to the movable scroll (15), and a back pressure chamber (200) is formed between the sealing assembly (18) and the fixed scroll (2); The scroll compressor further comprises a connecting pipe (101) arranged outside the fixed scroll (2) and the movable scroll (15), one end of the connecting pipe (101) being connectable to the compression chamber (100) so as to guide gas out of the compression chamber (100), and the other end of the connecting pipe (101) being connectable to the back pressure chamber (200) so as to guide gas guided out of the compression chamber (100) into the back pressure chamber (200).

2. The scroll compressor according to claim 1, characterized in that: A first conducting channel (103) is provided inside the static scroll (2), one end of the first conducting channel (103) being connected to the back pressure chamber (200), and the other end of the first conducting channel (103) extending to the outside of the static scroll (2) and connected to the other end of the connecting pipe (101).

3. The scroll compressor according to claim 2, characterized in that: The first conducting channel (103) comprises a first radial channel (103a) extending in the radial direction of the static scroll (2) and a first axial channel (103b) extending in the axial direction of the static scroll (2), one end of the first radial channel (103a) extending to the outer peripheral surface of the static scroll (2) and communicating with the other end of the connecting pipe (101), the upper end of the first axial channel (103b) communicating with the back pressure chamber (200), and the lower end extending to communicate with the first radial channel (103a).

4. The scroll compressor according to claim 2, characterized in that: It also includes a first connecting seat (102) and a first fastener (104), wherein the other end of the connecting pipe (101) is fixed to the static scroll (2) via the first connecting seat (102), and the first fastener (104) fixes the first connecting seat (102) to the outer peripheral wall of the static scroll (2).

5. The scroll compressor according to any one of claims 1 to 4, characterized in that: A second conducting channel (107) is provided inside the movable scroll (15), one end of the second conducting channel (107) being in communication with the compression chamber (100) and the other end of the second conducting channel (107) extending to the outside of the movable scroll (15); The scroll compressor further comprises an upper bracket (5), a third conducting channel being arranged inside the upper bracket (5), one end of the third conducting channel being in communication with the second conducting channel (107), and the other end of the third conducting channel extending to the outside of the upper bracket (5) and in communication with one end of the connecting pipe (101).

6. The scroll compressor according to claim 5, characterized in that: The second conducting channel (107) is a second axial channel extending along the axial direction of the movable scroll (15), the upper end of the second axial channel being in communication with the compression chamber (100), and the lower end extending to be in communication with the third conducting channel; The third conducting channel comprises a second radial channel (105) opened along the radial direction of the upper bracket (5) and a third axial channel (106) opened along the axial direction of the upper bracket (5), the upper end of the third axial channel (106) being in communication with the lower end of the second axial channel, the lower end of the third axial channel (106) being in communication with the second radial channel (105), and the second radial channel (105) extending radially to the outer peripheral surface of the upper bracket (5) and being in communication with one end of the connecting pipe (101).

7. The scroll compressor according to claim 5, characterized in that: It also comprises a second connection seat and a second fastener, one end of the connection pipe (101) is fixed to the upper bracket (5) via the second connection seat, and the second fastener fixes the second connection seat to the outer peripheral wall of the upper bracket (5).

8. The scroll compressor according to any one of claims 1 to 4, characterized in that: A fourth conducting channel (201) is provided inside the movable scroll (15), one end of the fourth conducting channel (201) being in communication with the compression chamber (100), and the other end of the fourth conducting channel (201) extending to the outside of the movable scroll (15) and in communication with the other end of the connecting pipe (101).

9. The scroll compressor according to claim 8, characterized in that: The fourth conducting channel (201) comprises a fourth axial channel (201a) extending along the axial direction of the movable scroll (15) and a third radial channel (201b) extending along the radial direction of the movable scroll (15); the upper end of the fourth axial channel (201a) is connected to the compression chamber (100), and the lower end extends to be connected to the third radial channel (201b); the third radial channel (201b) extends radially to the outer peripheral surface of the movable scroll (15) and is connected to one end of the connecting pipe (101).

10. The scroll compressor according to claim 8, characterized in that: It also comprises a third connecting seat (205) and a third fastener, one end of the connecting pipe (101) is fixed to the movable scroll (15) via the third connecting seat (205), and the third fastener fixes the third connecting seat to the outer peripheral wall of the movable scroll (15).

11. The scroll compressor according to claim 9, characterized in that: The scroll compressor further comprises an upper bracket (5), the upper bracket (5) being provided with a clearance hole (206), the clearance hole (206) accommodating the connecting pipe (101) passing therethrough and enabling one end of the connecting pipe (101) to be connected to the outer peripheral wall of the movable scroll (15).

12. The scroll compressor according to any one of claims 1 to 4, characterized in that: The connecting pipe (101) comprises at least one bent pipe section; and / or a part of the connecting pipe (101) is configured as an elastic pipe section structure (203) having elastic expansion and contraction.

13. An air conditioner, characterized in that: The invention comprises the scroll compressor according to any one of claims 1 to 12.

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