Pump body structure, compressor and vehicle

Abstract

The utility model relates to a compressor technical field, specifically disclose a pump body structure, compressor and vehicle, and the pump body structure includes upper cylinder cover, N cylinder body and N 1 intermediate plate, and the upper cylinder cover is located at the first end of pump body structure, and N cylinder body is arranged at the first end to the second end interval of pump body structure, and N cylinder body forms N 1 interval, and N 1 intermediate plate is one to one correspondence and is located in N 1 interval, and the pump body structure has N independent flow channel, and N flow channel and N cylinder body's piston cavity one to one correspondence intercommunication, and N flow channel all satisfy: the n flow channel is set up upper cylinder cover, n 1 cylinder body, n 1 intermediate plate after with the piston cavity intercommunication of n cylinder body, and 1 less than or equal to n less than or equal to N and N greater than or equal to 2, and the compressor includes above pump body structure, and the vehicle includes above compressor. The pump body structure refrigerant can enter N cylinder body respectively and not interfere with each other, avoid the problem that refrigerant flows through N cylinder body in turn, effectively improve compressor volumetric efficiency and whole machine performance.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a pump body structure, a compressor, and a vehicle. Background Technology

[0002] A pump body structure of a compressor in the prior art is referenced. Figure 1 As shown. Figure 1 The pump body structure includes an upper cylinder head 1', two cylinders 2', and an intermediate plate 3'. The upper cylinder head 1' has a cylinder head flow channel 11', and the cylinders 2' have cylinder flow channels 21'. Each cylinder flow channel 21' is connected to its corresponding piston chamber. The intermediate plate 3' has an intermediate flow channel 31'. The cylinder head flow channel 11', cylinder flow channels 21', and intermediate flow channel 31' together form a flow channel 4' for supplying refrigerant to flow into the piston chamber of the cylinders 2'. According to the existing structure described above, the refrigerant first passes through the upper cylinder head flow channel 11' during its flow process, and then sequentially enters multiple cylinders 2'. This results in a sequential intake process for multiple cylinders 2', and since the multiple cylinders 2' are connected through the flow channel 4', there is mutual interference, affecting the pump body volumetric efficiency and thus reducing the overall performance of the compressor. Utility Model Content

[0003] The purpose of this invention is to provide a pump body structure that effectively improves the problem of refrigerant flowing through multiple cylinders in sequence during the refrigerant introduction process, avoids mutual interference between multiple cylinders, and effectively improves the working performance of the pump body structure.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A pump body structure includes an upper cylinder head, N cylinders, and N-1 intermediate plates;

[0006] The upper cylinder cover is located at the first end of the pump body structure. N cylinders are spaced apart from the first end to the second end of the pump body structure, forming N-1 intervals. N-1 intermediate plates are correspondingly arranged in the N-1 intervals. The pump body structure has N independent flow channels, and the N flow channels are correspondingly connected to the piston chambers of the N cylinders.

[0007] All N flow channels satisfy the following conditions: the nth flow channel passes through the upper cylinder head, n-1 cylinders, and n-1 intermediate plates, and then communicates with the piston chamber of the nth cylinder; 1≤n≤N and N≥2.

[0008] Preferably, the upper cylinder head has N cylinder head flow channels;

[0009] All N cylinders satisfy the following condition: the nth cylinder has a self-connecting flow channel and Nn through flow channels;

[0010] All N-1 intermediate plates satisfy the following condition: the nth intermediate plate has Nn intermediate flow channels;

[0011] All N flow channels satisfy the following condition: the nth flow channel is formed by a cylinder head flow channel, n-1 through flow channels, n-1 intermediate flow channels, and the self-connecting flow channel of the nth cylinder block.

[0012] Preferably, a protrusion is provided on one side of the cylinder body, the protrusion having a blade groove, and both the self-connecting flow channel and the through flow channel are provided on the protrusion.

[0013] Preferably, the self-connecting flow channel of the cylinder is configured as a connecting groove that communicates with its own piston chamber, and the through flow channel is configured as a through hole that penetrates the cylinder.

[0014] Preferably, along the direction from the first end to the second end of the pump body structure, the groove wall of the connecting groove and the center line of the through hole are both inclined toward the side closer to the piston chamber.

[0015] Preferably, the cylinder head flow channel is opened along the axial direction of the upper cylinder head, and the intermediate flow channel is opened along the axial direction of the intermediate plate.

[0016] Preferably, the cylinder block is provided in two parts, namely a first cylinder block and a second cylinder block, with an intermediate plate disposed between the first cylinder block and the second cylinder block. The upper cylinder head, the first cylinder block, the intermediate plate, and the second cylinder block are arranged sequentially. Two flow channels are correspondingly provided, namely a first flow channel and a second flow channel. The upper cylinder head has a first cylinder head flow channel and a second cylinder head flow channel. The first cylinder block has a first self-connecting flow channel and a first through-flow channel, and the second cylinder block has a second self-connecting flow channel.

[0017] The first cylinder head flow channel and the first self-connecting flow channel together form the first flow channel;

[0018] The second cylinder head flow channel, the first through flow channel, the intermediate flow channel, and the second self-connecting flow channel together form the second flow channel.

[0019] Preferably, the second cylinder head flow channel is located on a side away from the center line of the upper cylinder head compared to the first cylinder head flow channel;

[0020] The first through-flow channel is located on the side away from the center line of the first cylinder block, compared to the first self-connecting flow channel.

[0021] This utility model also provides a compressor, including the above-mentioned pump body structure, which effectively improves the problem of refrigerant flowing through multiple cylinders in sequence during the refrigerant introduction process, and effectively improves the compressor's volumetric efficiency and overall performance.

[0022] A compressor includes the pump body structure described in any one of the above claims, and further includes a housing and a motor. The housing has an inner cavity, and the inner cavity has a partition that divides the inner cavity into a high-pressure chamber and a low-pressure chamber. The motor is located in the low-pressure chamber, the pump body structure is located in the high-pressure chamber, and the upper cylinder head is located on the side close to the partition.

[0023] This utility model also provides a vehicle including the above-mentioned compressor, which effectively improves the problem of refrigerant flowing sequentially through multiple cylinders during the refrigerant introduction process, and effectively improves the compressor's volumetric efficiency and overall performance.

[0024] A vehicle includes the compressor described above, and also includes a vehicle body, wherein the compressor is disposed within the vehicle body.

[0025] Beneficial effects:

[0026] The pump body structure provided by this utility model is suitable for multi-cylinder arrangements. It includes an upper cylinder head, N cylinders, and N-1 intermediate plates, where N ≥ 2. The upper cylinder head is located at the first end of the pump body structure. The N cylinders are spaced apart from their first to second ends, forming N-1 intervals. The N-1 intermediate plates are correspondingly located within these N-1 intervals, meaning adjacent cylinders are connected and separated by intermediate plates. Corresponding to the N cylinders, the pump body structure has N independent flow channels, each of which is connected to the piston chamber of one of the N cylinders. All N flow channels satisfy the following conditions: the nth flow channel passes through the upper cylinder head, n-1 cylinders, and n-1 intermediate plates before connecting to the piston chamber of the nth cylinder; 1 ≤ n ≤ N. For example, for the cylinder closest to the upper cylinder head, i.e., at the beginning of the pump body structure's air intake, its corresponding flow channel passes through the upper cylinder head and the beginning cylinder, connecting to the piston chamber of that cylinder. Conversely, for the cylinder furthest from the upper cylinder head, i.e., at the end of the pump body structure's air intake, its corresponding flow channel passes through the upper cylinder head, all cylinders before the end cylinder, and all intermediate plates, then through the end cylinder, connecting to its piston chamber. With this configuration, after the refrigerant enters the pump body structure, it can enter the piston chambers of N cylinders through N flow channels. This ensures that the intake processes of multiple cylinders are completely independent and do not interfere with each other. The multi-flow channel configuration effectively avoids and improves the problem of refrigerant flowing sequentially through multiple cylinders during the refrigerant introduction process, effectively enhancing the pump body structure's performance.

[0027] The compressor provided by this utility model includes the aforementioned pump body structure, effectively improving the problem of refrigerant flowing sequentially through multiple cylinders during the refrigerant introduction process, and effectively improving the compressor's volumetric efficiency and overall performance. Specifically, the compressor includes a housing and a motor. The motor drives the pump body structure. The housing has an inner cavity, and the inner cavity has a partition to divide the inner cavity into a high-pressure chamber and a low-pressure chamber. The motor is located in the low-pressure chamber, corresponding to the low-pressure side; the pump body structure is located in the high-pressure chamber, corresponding to the high-pressure side. Since the low-temperature, low-pressure refrigerant enters the pump body structure through the opening in the partition between the low-pressure chamber and the high-pressure chamber, by setting the upper cylinder head to be located on the side close to the partition, the refrigerant can directly enter the flow channel through the upper cylinder head after passing through the partition, ensuring that the upper cylinder head faces the refrigerant inlet end.

[0028] The vehicle provided by this utility model includes the aforementioned compressor, which effectively improves the problem of refrigerant flowing sequentially through multiple cylinders during the refrigerant introduction process, avoids mutual interference between multiple cylinders, and effectively improves the compressor's volumetric efficiency and overall performance. Attached Figure Description

[0029] Figure 1 A cross-sectional schematic diagram of the pump body structure provided for the prior art;

[0030] Figure 2 A cross-sectional schematic diagram of the pump body structure provided by this utility model;

[0031] Figure 3 A schematic diagram of the upper cylinder head provided by this utility model;

[0032] Figure 4 A schematic diagram of the structure of the first cylinder block provided by this utility model;

[0033] Figure 5 A schematic diagram of the structure of the intermediate plate provided by this utility model;

[0034] Figure 6 This is a schematic diagram of the structure of the second cylinder provided by this utility model.

[0035] In the picture:

[0036] 1' Upper cylinder head; 11' Cylinder head runner; 2' Cylinder block; 21' Cylinder block runner; 3' Intermediate plate; 31' Intermediate runner; 4' Runner;

[0037] 1. Upper cylinder head; 11. Cylinder head runner; 11A. First cylinder head runner; 11B. Second cylinder head runner;

[0038] 2. Cylinder block; 21. Self-connecting flow channel; 22. Through-flow channel;

[0039] 2A, First cylinder block; 21A, First self-connecting flow channel; 22A, First through-flow channel; 23A, First protrusion; 231A, First blade groove;

[0040] 2B, Second cylinder block; 21B, Second self-connecting flow channel; 22B, Second protrusion; 221B, Second blade groove;

[0041] 3. Intermediate plate; 31. Intermediate flow channel;

[0042] 4. Flow channel; 4A, first flow channel; 4B, second flow channel. Detailed Implementation

[0043] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0044] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0047] This embodiment provides a pump body structure. (Refer to...) Figures 2 to 6 As shown, the pump body structure includes an upper cylinder head 1, N cylinders 2, and N-1 intermediate plates 3. The upper cylinder head 1 is located at the first end of the pump body structure. The N cylinders 2 are spaced apart from the first end to the second end of the pump body structure, forming N-1 intervals. The N-1 intermediate plates 3 are correspondingly arranged within the N-1 intervals. The pump body structure has N independent flow channels 4, which are connected to the piston chambers of the N cylinders 2. The N flow channels 4 all satisfy the following conditions: the nth flow channel 4 passes through the upper cylinder head 1, the n-1 cylinders 2, and the n-1 intermediate plates 3 and then connects to the piston chamber of the nth cylinder 2; 1≤n≤N and N≥2.

[0048] In this embodiment, the pump body structure is suitable for a multi-cylinder arrangement. It includes an upper cylinder head 1, N cylinders 2, and N-1 intermediate plates 3, where N ≥ 2. The upper cylinder head 1 is located at the first end of the pump body structure. The N cylinders 2 are spaced apart from the first end to the second end of the pump body structure, forming N-1 intervals. The N-1 intermediate plates 3 are correspondingly located within the N-1 intervals, meaning that adjacent cylinders 2 are connected and separated by intermediate plates 3. Corresponding to the N cylinders 2, the pump body structure has N independent flow channels 4, which are connected to the piston chambers of the N cylinders 2. All N flow channels 4 satisfy the following conditions: the nth flow channel 4 passes through the upper cylinder head 1, the n-1 cylinders 2, and the n-1 intermediate plates 3, and then connects to the piston chamber of the nth cylinder 2; 1 ≤ n ≤ N. For example, for the cylinder 2 closest to the upper cylinder head 1, i.e., at the beginning of the pump body structure's air intake, its corresponding flow channel 4 passes through the upper cylinder head 1 and the beginning cylinder 2, connecting to the piston chamber of that cylinder 2. Conversely, for the cylinder 2 furthest from the upper cylinder head 1, i.e., at the end of the pump body structure's air intake, its corresponding flow channel 4 passes through the upper cylinder head 1, all cylinders 2 before the end cylinder 2, and all intermediate plates 3, before passing through the end cylinder 2 and connecting to its piston chamber. With this configuration, after the refrigerant enters the pump body structure, it can enter the piston chambers of N cylinders 2 through N flow channels 4 respectively. This ensures that the intake process of multiple cylinders 2 is completely independent and does not interfere with each other. The multiple flow channels 4 effectively avoid and improve the problem of the refrigerant flowing sequentially through multiple cylinders 2 during the refrigerant introduction process, effectively improving the pump body structure's working performance.

[0049] In this embodiment, the upper cylinder head 1 has N cylinder head flow channels 11. The N cylinder head flow channels 11 correspond to the piston chambers of the N cylinder blocks 2, and the N cylinder head flow channels 11 serve as the starting end portions of multiple flow channels 4.

[0050] In this embodiment, all N cylinders 2 satisfy the following condition: the nth cylinder 2 has a self-connecting flow channel 21 and Nn through flow channels 22. Taking the pump structure with two cylinders 2 as an example, along the direction from the first end to the second end of the pump structure, the first cylinder 2 has a self-connecting flow channel 21 and a through flow channel 22; the second cylinder 2 has a self-connecting flow channel 21, but no through flow channels 22. The pump structure of other numbers of cylinders 2 is also set according to this rule.

[0051] In this embodiment, all N-1 intermediate plates 3 satisfy the following condition: the nth intermediate plate 3 has Nn intermediate flow channels 31. Taking the pump body structure of the double cylinder 2 as an example, along the direction from the first end to the second end of the pump body structure, the first intermediate plate 3 has two intermediate flow channels 31; the second intermediate plate 3 has one intermediate flow channel 31. The pump body structure with other numbers of intermediate plates 3 is also set according to this rule.

[0052] In this embodiment, all N flow channels 4 satisfy the following condition: the nth flow channel 4 is formed by a cylinder head flow channel 11, n-1 through flow channels 22, n-1 intermediate flow channels 31, and the self-connecting flow channel 21 of the nth cylinder block 2. Taking the pump body structure with a double cylinder block 2 as an example, it has two flow channels 4. The first flow channel 4 is composed of a cylinder head flow channel 11 and the self-connecting flow channel 21 of the first cylinder block 2, excluding the through flow channel 22 and the intermediate flow channel 31; the other flow channel 4 is composed of a cylinder head flow channel 11, the through flow channel 22 of the first cylinder block 2, the intermediate flow channel 31 of the intermediate plate 3, and the self-connecting flow channel 21 of the second cylinder block 2. Pump body structures with other numbers of flow channels 4 are also set according to this rule.

[0053] In this embodiment, the self-connecting flow channel 21 of the cylinder 2 is configured as a connecting groove communicating with its own piston chamber, and the through flow channel 22 is configured as a through hole penetrating the cylinder 2. Specifically, configuring the self-connecting flow channel 21 as a connecting groove structure further increases the communication area between the flow channel 4 and the piston chamber, ensuring smooth refrigerant flow. Configuring the through flow channel 22 as a through hole structure ensures reliable refrigerant flow through the corresponding cylinder 2, preventing refrigerant leakage during its flow through the cylinder 2.

[0054] In this embodiment, along the direction from the first end to the second end of the pump body structure, the wall of the connecting groove and the center line of the through hole are both inclined towards the inner wall and closer to the piston cavity. Specifically, the inclination of the wall of the connecting groove and the center line of the through hole towards the inner wall and closer to the piston cavity allows the refrigerant flowing in the connecting groove and the through hole to get closer and closer to the piston cavity located at the center of the cylinder 2, thereby gradually delivering the refrigerant towards the piston cavity of the target cylinder 2.

[0055] In this embodiment, the cylinder head flow channel 11 is opened along the axial direction of the upper cylinder head 1, and the intermediate flow channel 31 is opened along the axial direction of the intermediate plate 3. Specifically, both the cylinder head flow channel 11 and the intermediate flow channel 31 are opened along the axial direction to ensure smooth refrigerant flow and allow the refrigerant to stably pass through the upper cylinder head 1 and the intermediate plate 3.

[0056] For example, with Figures 2 to 6 Taking the pump body structure as an example, there are two cylinder bodies 2, namely the first cylinder body 2A and the second cylinder body 2B. The intermediate plate 3 is located between the first cylinder body 2A and the second cylinder body 2B. The upper cylinder head 1, the first cylinder body 2A, the intermediate plate 3, and the second cylinder body 2B are arranged in sequence. There are two flow channels 4, namely the first flow channel 4A and the second flow channel 4B. The upper cylinder head 1 has a first cylinder head flow channel 11A and a second cylinder head flow channel 11B. The first cylinder body 2A has a first self-connecting flow channel 21A and a first through flow channel 22A. The second cylinder body 2B has a second self-connecting flow channel 21B. Among them, the first cylinder head flow channel 11A and the first self-connecting flow channel 21A together form the first flow channel 4A; the second cylinder head flow channel 11B, the first through flow channel 22A, the intermediate flow channel 31, and the second self-connecting flow channel 21B together form the second flow channel 4B.

[0057] Specifically, the first flow channel 4A is composed of a first cylinder head flow channel 11A and a first self-connecting flow channel 21A. The first end of the first self-connecting flow channel 21A is directly connected to the first cylinder head flow channel 11A. The first self-connecting flow channel 21A is configured as a connecting groove structure communicating with the piston chamber of the first cylinder block 2A, and the groove wall extends obliquely from its first end to its second end towards the piston chamber. The second flow channel 4B is composed of a second cylinder head flow channel 11B, a first through-flow channel 22A, an intermediate flow channel 31, and a second self-connecting flow channel 21B. The first end of the first through-flow channel 22A is directly connected to the second cylinder head flow channel 11B, the second section of the first through-flow channel 22A is directly connected to the first end of the intermediate flow channel 31, and the second section of the intermediate flow channel 31 is coaxially connected to the first end of the second self-connecting flow channel 21B. The second self-connecting flow channel 21B is configured as a connecting groove structure that communicates with the piston cavity of the second cylinder 2B, and the groove wall of the connecting groove extends inclinedly from its first end to its second end toward the side closer to the piston cavity.

[0058] In this embodiment, the second cylinder head flow channel 11B is located on the side farther from the centerline of the upper cylinder head 1 compared to the first cylinder head flow channel 11A. Since the first cylinder head flow channel 11A corresponds to the piston chamber connected to the first cylinder block 2A, its overall length is shorter than that of the first flow channel 4A. Therefore, the first cylinder head flow channel 11A is closer to the centerline of the upper cylinder head 1, allowing it to connect with the first self-connecting flow channel 21A and gradually transport the refrigerant towards the piston chamber of the first cylinder block 2A. Compared to the first flow channel 4A, the second flow channel 4B is longer overall and needs to pass through the first cylinder block 2A and the intermediate plate 3. Therefore, the first through-flow channel 22A can be located relatively far from the centerline of the first cylinder block 2A, without interfering with the opening space of the first self-connecting flow channel 21A. Furthermore, the first through-flow channel 22A is inclined towards the side closer to the piston chamber, allowing the refrigerant in the second flow channel 4B to reside in the piston chamber closer to the centerline of the second cylinder block 2B.

[0059] In this embodiment, a protruding portion is provided on one side of the cylinder body 2, and a blade groove is formed on the protruding portion. Both the self-connecting flow channel 21 and the through flow channel 22 are formed on the protruding portion. Specifically, a first protruding portion 23A is provided on one side of the first cylinder body 2A, and a first blade groove 231A is formed on the first protruding portion 23A. A second protruding portion 22B is provided on one side of the second cylinder body 2B, and a second blade groove 221B is formed on the second protruding portion 22B. Both the first self-connecting flow channel 21A and the first through flow channel 22A are formed within the first protruding portion, and the second self-connecting flow channel 21B is formed within the second protruding portion 22B. Since the sidewalls of the first protrusion 23A and the second protrusion 22B are relatively thick, a first self-connecting flow channel 21A and a first through flow channel 22A are opened in the first protrusion 23A, and a second self-connecting flow channel 21B is opened in the second protrusion 22B. This can ensure that the strength of the first cylinder 2A and the second cylinder 2B is not damaged to the greatest extent, and also provide sufficient space for the opening of the flow channels.

[0060] It is worth mentioning that blades are slidably arranged in the blade groove, and the blades divide the inside of the cylinder 2 into an intake zone and an exhaust zone. The self-connecting flow channel 21 and the through flow channel 22 are both opened in the protrusion corresponding to the intake zone.

[0061] This embodiment also provides a compressor. The compressor includes the pump body structure described above, and also includes a housing and a motor. The housing has an inner cavity, and the inner cavity has a partition. The partition divides the inner cavity into a high-pressure chamber and a low-pressure chamber. The motor is located in the low-pressure chamber, the pump body structure is located in the high-pressure chamber, and the upper cylinder head 1 is located on the side close to the partition.

[0062] In this embodiment, the compressor includes the aforementioned pump body structure, effectively improving the problem of refrigerant flowing sequentially through multiple cylinders 2 during the refrigerant introduction process, and effectively improving the compressor's volumetric efficiency and overall performance. Specifically, the compressor includes a housing and a motor. The motor drives the pump body structure. The housing has an inner cavity, which is divided into a high-pressure chamber and a low-pressure chamber by a partition. The motor is located in the low-pressure chamber, corresponding to the low-pressure side; the pump body structure is located in the high-pressure chamber, corresponding to the high-pressure side. Since the low-temperature, low-pressure refrigerant enters the pump body structure through the opening in the partition between the low-pressure chamber and the high-pressure chamber, by setting the upper cylinder head 1 to be located near the partition, the refrigerant can directly enter the flow channel 4 through the upper cylinder head 1 after passing through the partition, ensuring that the upper cylinder head 1 faces the refrigerant inlet end.

[0063] This embodiment also provides a vehicle, which includes the aforementioned compressor and a vehicle body, with the compressor housed within the vehicle body. The inclusion of the aforementioned compressor in the vehicle effectively improves the problem of refrigerant flowing sequentially through multiple cylinders 2 during the refrigerant introduction process, avoiding mutual interference between the multiple cylinders 2, and effectively improving the compressor's volumetric efficiency and overall performance.

[0064] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A pump body structure, characterized in that, It includes an upper cylinder head (1), N cylinder blocks (2) and N-1 intermediate plates (3); The upper cylinder cover (1) is located at the first end of the pump body structure. N cylinders (2) are spaced apart from the first end to the second end of the pump body structure. The N cylinders (2) form N-1 intervals. N-1 intermediate plates (3) are arranged in the N-1 intervals. The pump body structure has N independent flow channels (4). The N flow channels (4) are connected to the piston chambers of the N cylinders (2) in a corresponding manner. All N flow channels (4) satisfy the following conditions: the nth flow channel (4) passes through the upper cylinder head (1), the n-1 cylinder bodies (2), and the n-1 intermediate plates (3) and then communicates with the piston chamber of the nth cylinder body (2); 1≤n≤N and N≥2.

2. The pump body structure according to claim 1, characterized in that, The upper cylinder head (1) has N cylinder head flow channels (11); All N cylinders (2) satisfy the following condition: the nth cylinder (2) has a self-connecting flow channel (21) and Nn through flow channels (22); All N-1 intermediate plates (3) satisfy the following condition: the nth intermediate plate (3) has Nn intermediate flow channels (31); All N flow channels (4) satisfy the following condition: the nth flow channel (4) is formed by a cylinder head flow channel (11), n-1 through flow channels (22), n-1 intermediate flow channels (31) and the self-connecting flow channel (21) of the nth cylinder block (2).

3. The pump body structure according to claim 2, characterized in that, The cylinder body (2) has a protruding part on one side, and the protruding part has a blade groove. The self-connecting flow channel (21) and the through flow channel (22) are both opened on the protruding part.

4. The pump body structure according to claim 2, characterized in that, The self-connecting flow channel (21) of the cylinder (2) is configured as a connecting groove that communicates with its own piston chamber, and the through flow channel (22) is configured as a through hole that passes through the cylinder (2).

5. The pump body structure according to claim 4, characterized in that, Along the direction from the first end to the second end of the pump body structure, the groove wall of the connecting groove and the center line of the through hole are both inclined toward the side closer to the piston chamber.

6. The pump body structure according to claim 2, characterized in that, The cylinder head flow channel (11) is opened along the axial direction of the upper cylinder head (1), and the intermediate flow channel (31) is opened along the axial direction of the intermediate plate (3).

7. The pump body structure according to claim 2, characterized in that, The cylinder body (2) is provided in two parts, namely a first cylinder body (2A) and a second cylinder body (2B). The intermediate plate (3) is provided between the first cylinder body (2A) and the second cylinder body (2B). The upper cylinder cover (1), the first cylinder body (2A), the intermediate plate (3), and the second cylinder body (2B) are arranged in sequence. The flow channel (4) is provided in two parts, namely a first flow channel (4A) and a second flow channel (4B). The upper cylinder cover (1) has a first cylinder cover flow channel (11A) and a second cylinder cover flow channel (11B). The first cylinder body (2A) has a first self-connecting flow channel (21A) and a first through flow channel (22A). The second cylinder body (2B) has a second self-connecting flow channel (21B). The first cylinder head flow channel (11A) and the first self-connecting flow channel (21A) together form the first flow channel (4A). The second cylinder head flow channel (11B), the first through flow channel (22A), the intermediate flow channel (31) and the second self-connecting flow channel (21B) together form the second flow channel (4B).

8. The pump body structure according to claim 7, characterized in that, The second cylinder head flow channel (11B) is located on a side away from the center line of the upper cylinder head (1) compared to the first cylinder head flow channel (11A); The first through-flow channel (22A) is located on the side away from the center line of the first cylinder block (2A) compared to the first self-connecting flow channel (21A).

9. A compressor, characterized in that, The pump body structure includes any one of claims 1-8, and further includes a housing and a motor. The housing has an inner cavity, and the inner cavity has a partition that divides the inner cavity into a high-pressure cavity and a low-pressure cavity. The motor is located in the low-pressure cavity, the pump body structure is located in the high-pressure cavity, and the upper cylinder head (1) is located on the side close to the partition.

10. A vehicle, characterized in that, The system includes the compressor of claim 9, and also includes a vehicle body, wherein the compressor is disposed within the vehicle body.

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