Double-acting vane pump and vehicle

Abstract

The utility model provides a double-acting vane pump and a vehicle, relates to the technical field of oil pumps, and aims at solving the problems that an existing oil pump for the vehicle is complex in structure, high in assembly precision requirement and large in occupied space to a certain extent. The utility model provides a double-acting vane pump. The double-acting vane pump comprises an oil pump mechanism and a driving mechanism, the oil pump mechanism comprises a first shell assembly and an impeller assembly, a first cavity is formed in the first shell assembly, the impeller assembly is arranged in the first cavity, the driving mechanism comprises a driving assembly and a second shell assembly, a second cavity is formed in the second shell assembly, and the driving assembly is arranged in the second cavity. An output shaft of the driving assembly penetrates through the second shell assembly and is connected with the impeller assembly; a first oil inlet part, a liquid passing part, a second oil inlet part and a liquid outlet part are sequentially formed in the first cavity in the rotating direction of the impeller assembly, and the liquid passing part and the liquid outlet part communicate with the second cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pumps, in particular to a double-acting vane pump and a vehicle. Background Art

[0002] At present, vehicle oil pumps mainly use dual-rotor pumps, that is, two independent rotor systems are used to achieve oil supply under different working conditions.

[0003] The twin-rotor pump has two rotors, which requires a large space for the pump body. Moreover, although the two rotors need to operate independently, they need to be integrated into one structure. The assembly space provided by the vehicle is relatively small, which requires high assembly precision of the two structures and makes assembly more difficult.

[0004] Therefore, it is urgent to provide a double-acting vane pump and a vehicle to solve the problems in the prior art to a certain extent. Utility Model Content

[0005] The purpose of the utility model is to provide a double-acting vane pump and a vehicle, so as to solve, to a certain extent, the problems of the existing vehicle oil pump having a complex structure, high assembly precision requirements, and large space occupation.

[0006] The utility model provides a double-acting vane pump, including an oil pump mechanism and a driving mechanism; the oil pump mechanism includes a first housing assembly and an impeller assembly, the first housing assembly forms a first cavity, the impeller assembly is arranged in the first cavity, the driving mechanism includes a driving assembly and a second housing assembly, the second housing assembly forms a second cavity, the driving assembly is arranged in the second cavity, and the output shaft of the driving assembly passes through the second housing assembly and is connected to the impeller assembly; a first oil inlet part, a liquid passage part, a second oil inlet part and a liquid outlet part are formed in the first cavity and in sequence along the rotation direction of the impeller assembly, the liquid passage part and the liquid outlet part are communicated with the second cavity.

[0007] In which, the first shell assembly includes a first shell body and a first cover plate, the first shell body forms a receiving groove, the first cover plate covers the first shell body and the receiving groove to form the first cavity; the first liquid inlet, the second liquid inlet and the liquid outlet are formed in sequence on the first cover plate along the rotation direction of the impeller assembly, the first shell body forms a first liquid inlet groove, a liquid outlet, a second liquid inlet groove and a corresponding outlet in sequence along the rotation direction of the impeller assembly, the first liquid inlet groove corresponds to the first liquid inlet to form the first oil inlet part, the second liquid inlet groove corresponds to the second liquid inlet to form the second oil inlet part, and the corresponding outlet corresponds to the liquid outlet to form the liquid outlet part.

[0008] Specifically, the impeller assembly includes an impeller body and a mating part, the mating part is ring-shaped, the impeller body is located in the inner ring space of the mating part, and the impeller body and the mating part form a first gap and a second gap, the first gap corresponds to connecting the first oil inlet part and the liquid passing part, and the second gap corresponds to connecting the second oil inlet part and the liquid outlet part.

[0009] Furthermore, the contour of the accommodating groove is adapted to the outer contour of the matching piece, and the matching piece is embedded in the accommodating groove.

[0010] Furthermore, the first shell assembly further includes a connecting piece, and the connecting piece passes through the first cover plate and is connected to the first shell body.

[0011] Furthermore, the first shell assembly further includes a sealing member, and the sealing member is located between the first shell body and the second shell assembly.

[0012] The driving assembly includes a stator, a rotor and an output shaft. The stator and the rotor are both located in the second cavity, and one end of the output shaft is connected to the rotor, and the other end is connected to the impeller assembly.

[0013] Specifically, the second shell assembly includes a second shell body and a second cover plate, the second cover plate is connected to the first position of the second shell body to form the second cavity, and the first shell body is connected to the second position of the second shell body to connect the first cavity with the second cavity.

[0014] Furthermore, the drive assembly also includes a control component and a sealing layer; the second cover plate forms a bearing space, the control component is arranged in the bearing space, the control component includes a main body and a first connecting part, the sealing layer covers the main body, and the sealing layer is sealed and connected to the second cover plate; the stator is connected to the second connecting part, and the first connecting part is plugged into the second connecting part.

[0015] Compared with the existing technology, the double-acting vane pump provided by the utility model has the following advantages:

[0016] The double-acting vane pump provided by the utility model includes an oil pump mechanism and a driving mechanism; the oil pump mechanism includes a first housing assembly and an impeller assembly, the first housing assembly forms a first cavity, the impeller assembly is arranged in the first cavity, the driving mechanism includes a driving assembly and a second housing assembly, the second housing assembly forms a second cavity, the driving assembly is arranged in the second cavity, and the output shaft of the driving assembly passes through the second housing assembly and is connected to the impeller assembly; a first oil inlet part, a liquid passing part, a second oil inlet part and a liquid outlet part are formed in the first cavity and in sequence along the rotation direction of the impeller assembly, and the liquid passing part and the liquid outlet part are communicated with the second cavity.

[0017] From this analysis, it can be seen that the first cavity formed by the first shell assembly can provide assembly space for the impeller assembly, and since the oil pump mechanism in the present application adopts an impeller assembly, the flow of oil can be achieved by utilizing the driving assembly to drive the impeller assembly, that is, the flow of oil is achieved by the rotation of the impeller assembly in the first cavity.

[0018] In the present application, the first cavity is formed with a first oil inlet, a liquid passage, a second oil inlet, and a liquid outlet in sequence along the rotation direction of the impeller assembly, and the liquid passage and the liquid outlet are connected to the second cavity. Therefore, when the oil enters the first cavity from the first oil inlet, it will flow in the direction of rotation of the impeller assembly, thereby being able to enter the second cavity through the liquid passage and cool the drive assembly in the second cavity. Since the liquid outlet is connected to the second cavity, the oil can flow out through the liquid outlet.

[0019] It is understood that, because the second oil inlet in this application is located at the position immediately after the liquid portion in the direction of impeller rotation, the oil entering through the second oil inlet can only flow toward the oil outlet. Therefore, the oil entering through the second oil inlet does not contribute to cooling the drive assembly. That is, when the vehicle requires a high oil supply, the first and second oil inlets simultaneously supply oil. The oil entering the first oil inlet cools the drive assembly while simultaneously supplying oil to the vehicle, along with the oil entering the second oil inlet. When the vehicle does not require a high oil supply, the second oil inlet can be closed, with oil entering only through the first oil inlet, achieving both cooling the drive assembly and supplying oil to the vehicle.

[0020] Since this application only uses one impeller assembly to achieve adaptation to two working conditions, there is neither high-precision assembly requirement nor high space occupancy. While reducing the size and manufacturing cost of the overall oil pump, the oil supply demand is guaranteed.

[0021] In addition, the utility model also provides a vehicle, comprising the above-mentioned double-acting vane pump.

[0022] The double-acting vane pump provided in this application can adapt to different power consumption requirements within a limited space, and greatly reduce the manufacturing cost and assembly difficulty of the oil pump used. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 An exploded schematic diagram of the oil pump mechanism in a double-acting vane pump provided in an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of an exploded view of the drive mechanism in a double-acting vane pump provided in an embodiment of the present utility model.

[0026] In the figure: 1-first shell body; 101-containing tank; 1011-first liquid inlet tank; 1012-liquid outlet; 1013-second liquid inlet tank; 1014-aligned outlet; 2-first cover plate; 201-first liquid inlet; 202-second liquid inlet; 203-liquid outlet; 3-connecting part; 4-impeller body; 5-matching part; 6-second shell body; 7-second cover plate; 8-stator; 801-second connecting part; 9-rotor; 10-output shaft; 11-control component; 1101-first connecting part; 12-sealing layer; 13-sealing part. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0028] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0029] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0030] In the description of the embodiments of the present application, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0031] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0032] For ease of description, spatially relative terms such as "above," "upper," "below," and "lower" may be used herein to describe the relationship of one element to another element as illustrated in the drawings. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings.

[0033] The terms used herein are intended only to describe various examples and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular is intended to include the plural. The terms "comprise," "include," and "have" list the presence of stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0034] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include changes in shapes that occur during manufacturing.

[0035] The features of the examples described herein may be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various configurations, other configurations are possible, as will be apparent upon understanding the disclosure of this application. In addition, the technical solutions between the various embodiments may be combined with each other, but this must be based on the ability of a person of ordinary skill in the art to implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0036] like Figure 1 Combine Figure 2 As shown, the utility model provides a double-acting vane pump, including an oil pump mechanism and a driving mechanism; the oil pump mechanism includes a first housing assembly and an impeller assembly, the first housing assembly forms a first cavity, the impeller assembly is arranged in the first cavity, the driving mechanism includes a driving assembly and a second housing assembly, the second housing assembly forms a second cavity, the driving assembly is arranged in the second cavity, and the output shaft 10 of the driving assembly passes through the second housing assembly and is connected to the impeller assembly; a first oil inlet part, a liquid passing part, a second oil inlet part and a liquid outlet part are formed in the first cavity and in sequence along the rotation direction of the impeller assembly, and the liquid passing part and the liquid outlet part are communicated with the second cavity.

[0037] Compared with the existing technology, the double-acting vane pump provided by the utility model has the following advantages:

[0038] The double-acting vane pump provided by the utility model can provide an assembly space for the impeller assembly through the first cavity formed by the first housing assembly. Moreover, since the oil pump mechanism in the present application adopts the impeller assembly, the oil flow can be achieved by utilizing the driving assembly to drive the impeller assembly, that is, the flow of oil is achieved by the rotation of the impeller assembly in the first cavity.

[0039] In the present application, the first cavity is formed with a first oil inlet, a liquid passage, a second oil inlet, and a liquid outlet in sequence along the rotation direction of the impeller assembly, and the liquid passage and the liquid outlet are connected to the second cavity. Therefore, when the oil enters the first cavity from the first oil inlet, it will flow in the direction of rotation of the impeller assembly, thereby being able to enter the second cavity through the liquid passage and cool the drive assembly in the second cavity. Since the liquid outlet is connected to the second cavity, the oil can flow out through the liquid outlet.

[0040] It is understood that, because the second oil inlet in this application is located at the position immediately after the liquid portion in the direction of impeller rotation, the oil entering through the second oil inlet can only flow toward the oil outlet. Therefore, the oil entering through the second oil inlet does not contribute to cooling the drive assembly. That is, when the vehicle requires a high oil supply, the first and second oil inlets simultaneously supply oil. The oil entering the first oil inlet cools the drive assembly while simultaneously supplying oil to the vehicle, along with the oil entering the second oil inlet. When the vehicle does not require a high oil supply, the second oil inlet can be closed, with oil entering only through the first oil inlet, achieving both cooling the drive assembly and supplying oil to the vehicle.

[0041] Since this application only uses one impeller assembly to achieve adaptation to two working conditions, there is neither high-precision assembly requirement nor high space occupancy. While reducing the size and manufacturing cost of the overall oil pump, the oil supply demand is guaranteed.

[0042] Alternatively, as Figure 1 As shown, the first shell assembly includes a first shell body 1 and a first cover plate 2, the first shell body 1 forms a receiving groove 101, and the first cover plate 2 covers the first shell body 1 and the receiving groove 101 to form a first cavity; the first liquid inlet 201, the second liquid inlet 202 and the liquid outlet 203 are formed in sequence on the first cover plate 2 along the rotation direction of the impeller assembly, and the first shell body 1 forms a first liquid inlet groove 1011, a liquid outlet 1012, a second liquid inlet groove 1013 and a corresponding outlet 1014 along the rotation direction of the impeller assembly, the first liquid inlet groove 1011 corresponds to the first liquid inlet 201 to form a first oil inlet part, the second liquid inlet groove 1013 corresponds to the second liquid inlet 202 to form a second oil inlet part, and the corresponding outlet 1014 corresponds to the liquid outlet 203 to form a liquid outlet part.

[0043] like Figure 1 As shown, the first liquid inlet 1011 and the second liquid inlet 1013 in the present application are both trough structures and are not connected to the second cavity, and the position corresponding to the liquid port 1012 on the first cover plate 2 is in a closed state. Therefore, when the oil enters the first cavity from the first liquid inlet 201 and the second liquid inlet 202, it can flow along with the impeller assembly, and Figure 1Based on the perspective, the impeller in this application rotates clockwise, thereby enabling the oil to flow from the first liquid inlet trough 1011 to the liquid outlet 1012 within the first chamber. The liquid outlet 1012 prevents the oil from following the impeller assembly to the second liquid inlet trough 1013. Accordingly, the oil entering through the second liquid inlet 202 flows from the second liquid inlet trough 1013 to the counter-position outlet 1014, and is discharged through the liquid outlet 203. It is understood that the clockwise rotation of the impeller assembly causes the oil to rotate clockwise, thereby preventing the oil in the second liquid inlet trough 1013 from flowing back to the liquid outlet 1012, thereby ensuring stable oil flow.

[0044] Since the first liquid inlet is fully involved in cooling the drive assembly, when the vehicle does not need a high oil output, the second liquid inlet 202 can be closed by using a solenoid valve or other structure that can control the opening to close or open to achieve a single supply and flow of oil.

[0045] Alternatively, as Figure 1 As shown, the impeller assembly in the present application includes an impeller body 4 and a fitting 5, the fitting 5 is ring-shaped, the impeller body 4 is located in the inner ring space of the fitting 5, and the impeller body 4 and the fitting 5 form a first gap and a second gap, the first gap corresponds to connecting the first oil inlet and the liquid passage, and the second gap corresponds to connecting the second oil inlet and the liquid outlet.

[0046] The fitting 5 in the present application is approximately of a waist-shaped structure, and the impeller body 4 includes a rotating wheel and a plurality of blades evenly distributed along the circumference of the rotating wheel, and the overall outer contour of the impeller body 4 is circular, so that it can form a first gap and a second gap with the fitting 5. Accordingly, through the formed first gap and second gap, and the first gap in the present application corresponds to connecting the first oil inlet and the liquid passing part, and the second gap corresponds to connecting the second oil inlet and the oil outlet, therefore, the pressurization and flow of the oil can be achieved.

[0047] It should be noted that the first and second gaps in this application are positioned opposite each other, and the impeller body 4 and the mating member 5 are sealed except where the first and second gaps are formed. This prevents the oil in the first and second gaps from flowing into each other to a certain extent. Therefore, when the second liquid inlet 202 is closed, the second gap is in an idling state, equivalent to a state without oil.

[0048] It is understandable that if Figure 1 As shown, the contour of the receiving groove 101 in the present application is adapted to the outer contour of the fitting 5, and the fitting 5 is embedded in the receiving groove 101, thereby preventing the fitting 5 from moving during the rotation of the impeller assembly and causing leakage.

[0049] Alternatively, as Figure 1As shown, the first shell assembly in the present application further includes a connector 3 , which passes through the first cover plate 2 and is connected to the first shell body 1 .

[0050] The connecting member 3 in the present application is a threaded connection structure such as a bolt or a screw. Accordingly, a through-hole is formed on the first cover plate 2, and an alignment screw hole is formed at the corresponding position of the through-hole on the first shell body 1. Through the connection between the connecting member 3 and the alignment screw hole, a stable connection between the first cover plate 2 and the first shell body 1 is achieved.

[0051] Alternatively, as Figure 1 Combine Figure 2 As shown, the first housing assembly in the present application further includes a sealing member 13 , which is located between the first housing body 1 and the second housing assembly.

[0052] The sealing member 13 in the present application is a sealing ring, which is actually sleeved on the second shell body 6 , thereby enabling a sealed connection between the first shell body 1 and the second shell body 6 .

[0053] Alternatively, as Figure 2 As shown, the driving assembly in the present application includes a stator 8, a rotor 9 and an output shaft 10. The stator 8 and the rotor 9 are both located in the second cavity, and one end of the output shaft 10 is connected to the rotor 9, and the other end is connected to the impeller assembly.

[0054] During actual operation, the stator 8 is fixedly connected to the second shell body 6, the rotor 9 can rotate relative to the stator 8, and the output shaft 10 is connected to the rotor 9 and the impeller assembly, so that when the rotor 9 rotates, it can drive the output shaft 10 to rotate, thereby realizing the rotation of the impeller assembly.

[0055] Alternatively, as Figure 2 As shown, the second shell assembly in the present application includes a second shell body 6 and a second cover plate 7. The second cover plate 7 is connected to the first position of the second shell body 6 to form a second cavity. The first shell body 1 is connected to the second position of the second shell body 6 to connect the first cavity with the second cavity.

[0056] Preferably, a threaded portion is formed on the outer wall of the second shell body 6 in the present application, and accordingly, threads are formed on the second cover plate 7 and the first shell body 1, and the diameter of the second shell body 6 is smaller than the diameters of the second cover plate 7 and the first shell body 1. Therefore, during assembly, the first shell body 1 and the second cover plate 7 are both sleeved on the outside of the second shell body 6, thereby realizing the connection of the three through threaded cooperation.

[0057] It is understood that the first position of the second shell body 6 in this application refers to the end of the second shell body 6 facing the second cover plate 7, while the second position is the end facing the first shell body 1. After assembly, the end of the first shell body 1 can abut against the end of the second cover plate 7, thereby making the overall structure more tightly matched.

[0058] Alternatively, as Figure 2 As shown, the drive assembly in the present application also includes a control member 11 and a sealing layer 12; the second cover plate 7 forms a bearing space, the control member 11 is arranged in the bearing space, the control member 11 includes a main body and a first connecting part 1101, the sealing layer 12 is arranged to cover the main body, and the sealing layer 12 is sealed and connected to the second cover plate 7; the stator 8 is connected to the second connecting part 801, and the first connecting part 1101 is plugged into the second connecting part 801.

[0059] The control member 11 in this application is a control board, which can be a PCB and is connected to the vehicle's master controller to control the start and stop of the drive assembly. Accordingly, in this application, a first connecting portion 1101 is formed on the control member 11, and a second connecting portion 801 is connected to the stator 8. The first connecting portion 1101 is a pin, and the second connecting portion 801 is a socket. Thus, through plugging, the control member 11 and the stator 8 are connected, achieving the start and stop control of the entire drive assembly.

[0060] Furthermore, the present application arranges the control component 11 in the second cover plate 7 and seals the main body of the control component 11 by injection molding. On the one hand, it can improve the service life of the control component 11. On the other hand, since the sealing layer 12 covers the main body and is sealed with the second cover plate 7, when the second cover plate 7 is connected to the second shell body 6, the sealing layer 12 can be used to cooperate with the second shell body 6 to form a second cavity, thereby realizing the storage and flow of oil.

[0061] Furthermore, since the sealing layer 12 is in direct contact with the oil, it can also dissipate heat from the control component 11 during use, thereby ensuring the temperature stability of the entire structure.

[0062] In addition, the utility model also provides a vehicle, comprising the above-mentioned double-acting vane pump.

[0063] The double-acting vane pump provided in this application can adapt to different power consumption requirements within a limited space, and greatly reduce the manufacturing cost and assembly difficulty of the oil pump used.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double-acting vane pump, characterized in that: Including oil pump mechanism and driving mechanism; The oil pump mechanism includes a first housing assembly and an impeller assembly, wherein the first housing assembly forms a first cavity, and the impeller assembly is disposed in the first cavity; the drive mechanism includes a drive assembly and a second housing assembly, wherein the second housing assembly forms a second cavity, and the drive assembly is disposed in the second cavity, and an output shaft of the drive assembly passes through the second housing assembly and is connected to the impeller assembly; A first oil inlet, a liquid passage, a second oil inlet and a liquid outlet are sequentially formed in the first cavity along the rotation direction of the impeller assembly. The liquid passage and the liquid outlet are communicated with the second cavity.

2. The double-acting vane pump according to claim 1, characterized in that: The first housing assembly includes a first housing body and a first cover plate, the first housing body forms a receiving groove, and the first cover plate covers the first housing body and the receiving groove to form the first cavity; A first liquid inlet, a second liquid inlet and a liquid outlet are sequentially formed on the first cover plate along the rotation direction of the impeller assembly, and a first liquid inlet groove, a liquid transfer port, a second liquid inlet groove and a counter-position outlet are sequentially formed on the first shell body along the rotation direction of the impeller assembly. The first liquid inlet groove corresponds to the first liquid inlet to form the first oil inlet part, the second liquid inlet groove corresponds to the second liquid inlet to form the second oil inlet part, and the counter-position outlet corresponds to the liquid outlet to form the liquid outlet part.

3. The double-acting vane pump according to claim 2, characterized in that: The impeller assembly includes an impeller body and a mating part, the mating part is ring-shaped, the impeller body is located in the inner ring space of the mating part, and the impeller body and the mating part form a first gap and a second gap, the first gap corresponds to connecting the first oil inlet part and the liquid passing part, and the second gap corresponds to connecting the second oil inlet part and the liquid outlet part.

4. The double-acting vane pump according to claim 3, characterized in that: The contour of the receiving groove is adapted to the outer contour of the matching piece, and the matching piece is embedded in the receiving groove.

5. The double-acting vane pump according to claim 2, characterized in that: The first shell assembly further includes a connecting member, which passes through the first cover plate and is connected to the first shell body.

6. The double-acting vane pump according to claim 2, characterized in that: The first housing assembly further includes a seal located between the first shell body and the second housing assembly.

7. The double-acting vane pump according to claim 2, characterized in that: The driving assembly includes a stator, a rotor and an output shaft. The stator and the rotor are both located in the second cavity, and one end of the output shaft is connected to the rotor, and the other end is connected to the impeller assembly.

8. The double-acting vane pump according to claim 7, characterized in that: The second shell assembly includes a second shell body and a second cover plate. The second cover plate is connected to the first position of the second shell body to form the second cavity. The first shell body is connected to the second position of the second shell body to connect the first cavity with the second cavity.

9. The double-acting vane pump according to claim 8, characterized in that The drive assembly further includes a control member and a sealing layer; The second cover plate is formed with a bearing space, the control member is arranged in the bearing space, the control member includes a main body and a first connecting portion, the sealing layer is arranged to cover the main body, and the sealing layer is sealed and connected to the second cover plate; The stator is connected with a second connecting portion, and the first connecting portion is plugged into the second connecting portion.

10. A vehicle, characterized in that: A double-acting vane pump comprising the above-mentioned claims 1-9.

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