Oil pump, engine and vehicle

Abstract

The utility model discloses an oil pump, an engine and a vehicle. The oil pump comprises an electromagnetic valve, a wire and a pump body. The first end of the wire is electrically connected with the electromagnetic valve; a limiting groove is formed in the edge of the pump body, and the wire penetrates through the limiting groove and can move in the limiting groove. The limiting groove is formed in the pump body to install the wire, the installation structure of the wire is simplified, the requirement for fixing the wire is met, the wire can be freely moved when the wire plug is installed, and the position of the wire plug is convenient to adjust.

Description

Technical Field

[0001] The utility model generally relates to the technical field of oil pumps, and more specifically to an oil pump, an engine and a vehicle. Background Art

[0002] The existing vehicle oil pump widely uses a two-stage variable oil pump, which uses a switch solenoid valve. When the switch solenoid valve is de-energized, the feedback oil from the main oil channel cannot pass through the solenoid valve to the oil pump control chamber, and the oil pump works at the maximum displacement. When the oil pressure reaches a certain set value, the switch solenoid valve is energized, and the oil in the main oil channel can move into the feedback oil chamber through the pilot valve to adjust the displacement of the oil pump.

[0003] The wire plug of the solenoid valve needs to be installed on the engine housing, such as the skirt frame, and the wire needs to be installed on the pump body of the oil pump. The wire and the pump body are fixed with a snap fastener. This installation method has a complex structure and the wire cannot be moved freely after installation. Sometimes, in order to adjust the position of the wire plug, the snap fastener needs to be repeatedly plugged and unplugged, which causes inconvenience to the adjustment process, and repeated plugging and unplugging will create the risk of damage to the snap fastener.

[0004] Therefore, it is necessary to provide an oil pump, an engine and a vehicle to at least partially solve the above problems. Utility Model Content

[0005] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0006] In order to at least partially solve the above problems, the first aspect of the present invention provides an oil pump, comprising:

[0007] Solenoid valve;

[0008] A wire, a first end of which is electrically connected to the solenoid valve;

[0009] The pump body is provided with a limiting groove at the edge of the pump body, and the wire is passed through the limiting groove and can move in the limiting groove.

[0010] Optionally, an inlet and outlet are provided on the edge of the pump body, the inlet and outlet are connected to the limiting groove, and the wire can enter and exit the limiting groove through the inlet and outlet.

[0011] Optionally, the width of the inlet and outlet is L1, the width of the limiting groove is L2, the depth of the limiting groove is L3, the diameter of the wire is d, and the diameter of the elastic deformation of the wire when it is squeezed is dmin;

[0012] dmin≤L1<d;

[0013] L2>d;

[0014] L3>d.

[0015] Optionally, the oil pump further includes:

[0016] A driving shaft, the axial direction of the solenoid valve is parallel to the axial direction of the driving shaft.

[0017] Optionally, the oil pump further includes:

[0018] A plug, wherein the second end of the wire is electrically connected to a rear end of the plug.

[0019] Optionally, the plug comprises:

[0020] ontology;

[0021] A limiting plate, the limiting plate is fixedly connected to the main body;

[0022] The limiting plate comprises a first edge, the distance between the first edge and the central axis of the body is different from other edges of the limiting plate, and the first edge is used for direction identification of the installation and fixing position of the plug to prevent installation errors.

[0023] Optionally, the first edge is a straight edge.

[0024] Optionally, the limiting plate further includes a second edge, which is a straight edge and is arranged opposite to the first edge; the distance between the first edge and the central axis of the body is S1, the distance between the second edge and the central axis of the body is S2, S1<S2; and / or,

[0025] The limiting plate also includes a third edge, which is a straight edge and is arranged perpendicular to the first edge; the distance between the first edge and the central axis of the body is S1, and the distance between the third edge and the central axis of the body is S3, S1<S3.

[0026] Optionally, the plug further includes:

[0027] A spring sheet, wherein the first end of the spring sheet is a movable end, the second end of the spring sheet is fixedly connected to the body, and the first end of the spring sheet extends toward the front end of the body;

[0028] A limiting protrusion is arranged on the spring sheet and is located at the first end of the spring sheet or close to the first end of the spring sheet, and is used to prevent the spring sheet from withdrawing from the installation and fixing position of the plug.

[0029] Optionally, there are at least two spring sheets, which are arranged opposite to each other on the main body, wherein the length of one of the spring sheets is greater than the length of the other spring sheet, and the first end of one of the spring sheets is closer to the front end of the main body than the first end of the other spring sheet.

[0030] A second aspect of the utility model provides an engine, comprising:

[0031] An oil pump according to any one of the above technical solutions;

[0032] A skirt frame, wherein the oil pump is arranged near an end side wall of the skirt frame;

[0033] The mounting hole is arranged on the end side wall of the skirt frame, the plug of the oil pump is arranged in the mounting hole, and the front end of the plug extends out from the end side wall of the skirt frame.

[0034] A third aspect of the utility model provides a vehicle, comprising the oil pump or the engine described in any one of the above technical solutions.

[0035] According to an oil pump, an engine and a vehicle of the utility model, the oil pump simplifies the installation structure of the wire by arranging a limit groove on the pump body to install the wire, which not only meets the requirement of fixing the wire, but also allows the wire to be freely moved when installing the wire plug, thereby facilitating the adjustment of the position of the wire plug; the plug is provided with a limit plate with a direction identification function, so that the plug can be accurately installed in the installation and fixing position, and can also achieve blind insertion, thereby preventing the plug from being installed upside down or misplaced, and facilitating the subsequent electrical connection with the control device. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0037] Figure 1 It is a three-dimensional diagram of an oil pump according to a preferred embodiment of the utility model;

[0038] Figure 2 It is a front view of a solenoid valve module according to a preferred embodiment of the utility model;

[0039] Figure 3 It is a three-dimensional diagram of a solenoid valve module according to a preferred embodiment of the utility model;

[0040] Figure 4 It is a dimension relationship diagram of a limiting groove according to a preferred embodiment of the utility model;

[0041] Figure 5 It is a left view of a solenoid valve module according to a preferred embodiment of the utility model;

[0042] Figure 6 It is a schematic diagram of installing a plug on a skirt frame according to a preferred embodiment of the utility model;

[0043] Figure 7 It is a front view of a plug according to a preferred embodiment of the utility model;

[0044] Figure 8 It is a schematic diagram of installing an oil pump on a skirt frame according to a preferred embodiment of the utility model;

[0045] Fig. 9 It is a schematic diagram of installing a plug on a skirt frame according to a preferred embodiment of the utility model;

[0046] Fig.10 The figure is a schematic diagram of installing a plug on a skirt frame according to a preferred embodiment of the utility model.

[0047] Description of reference numerals:

[0048] 1: Solenoid valve 2: Plug

[0049] 201: Main body 202: First shrapnel

[0050] 203: first limiting protrusion 204: sealing groove

[0051] 205: Sealing ring 206: Limiting plate

[0052] 261: First edge 262: Second edge

[0053] 263: Reinforcement rib 264: Connection hole

[0054] 265: Third edge 266: Fourth edge

[0055] 207: second spring piece 208: second limiting protrusion

[0056] 209: Support rib 3: Wire

[0057] 4: Oil pump 401: Pump body

[0058] 402: Limiting slot 403: Entrance and exit

[0059] 404: driving shaft 5: skirt frame

[0060] 501: Mounting hole 502: Limiting plane DETAILED DESCRIPTION

[0061] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0062] In order to thoroughly understand the utility model, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the utility model thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the utility model is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the utility model are described in detail below, but in addition to these detailed descriptions, the utility model may also have other embodiments.

[0063] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0064] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in the present invention are for illustrative purposes only and are not restrictive.

[0065] The utility model discloses an oil pump, an engine and a vehicle.

[0066] Now, exemplary embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

[0067] like Figure 1 , Figure 2 , Figure 3 As shown, in a preferred embodiment, an oil pump 4 includes: a solenoid valve 1, a wire 3 and a pump body 401;

[0068] The solenoid valve 1 is used to control the flow of lubricating oil (engine oil) between the engine and the oil pump 4;

[0069] The first end of the wire 3 is electrically connected to the solenoid valve 1; the second end of the wire 3 is electrically connected to the plug 2, and the plug 2 is used to connect the control device to the outside to supply power to the solenoid valve 1, and the electric energy is transmitted to the solenoid valve 1 through the wire 3;

[0070] The edge of the pump body 401 is provided with a limiting groove 402, and the wire 3 is passed through the limiting groove 402 and can move in the limiting groove 402. The wire 3 can move freely in the limiting groove 402, so that the wire 3 can be pulled to adjust the position of the plug 2 when installing the plug 2.

[0071] The oil pump in this embodiment simplifies the installation structure of the wire by providing a limiting groove on the pump body to install the wire, which not only meets the requirement of fixing the wire, but also allows the wire to be freely moved when installing the wire plug, thereby facilitating the adjustment of the position of the wire plug.

[0072] The solenoid valve 1 can be a proportional solenoid valve, and the P port and the A port of the solenoid valve 1 are arranged at the side end of the solenoid valve 1, and the T port is at the bottom end of the solenoid valve 1. The three openings are provided with a filter structure outside, which is conducive to filtering lubricating oil (engine oil) impurities.

[0073] In one embodiment, if Figure 1 , Figure 4 As shown, an inlet and outlet 403 is provided at the edge of the pump body 401, and the inlet and outlet 403 is connected to the limiting groove 402, and the wire 3 can enter and exit the limiting groove 402 through the inlet and outlet 403. Because the two ends of the wire 3 are respectively the plug 2 and the solenoid valve 1, the plug 2 and the solenoid valve 1 cannot pass through the limiting groove 402, it is necessary to provide the inlet and outlet 403, and the wire 3 can enter and exit the limiting groove 402 through the inlet and outlet 403.

[0074] In one embodiment, if Figure 4 As shown, the width of the inlet and outlet 403 is L1, the width of the limiting groove 402 is L2, the depth of the limiting groove 402 is L3, the diameter of the wire 3 is d, and the diameter of the elastic deformation of the wire 3 when being squeezed is dmin. The squeezing of the wire 3 means that the wire 3 is squeezed by the side wall of the inlet and outlet 403 when passing through the inlet and outlet 403;

[0075] dmin≤L1<d;

[0076] L2>d;

[0077] L3>d.

[0078] Through the above-mentioned size setting, the limiting groove 402 forms a hook structure, which not only meets the requirement of fixing the wire 3, but also allows the wire 3 to be freely moved when the plug 2 is installed, and the wire 3 can also be pulled out of the limiting groove 402 through the entrance and exit 403, without the need to use the repeated plugging and unplugging operation of the wire harness buckle similar to the prior art, which is easy to cause damage to the wire harness buckle.

[0079] By setting the width of the entrance 403 to be smaller than the diameter of the wire 3, the wire 3 is prevented from arbitrarily escaping from the limiting groove 402 from the entrance 403. The wire 3 can pass through the entrance 403 by external force and always remain in the limiting groove 402 when no external force is applied.

[0080] In one embodiment, L2>L3, by setting the width of the limit groove 402 to be greater than the depth of the limit groove 402, both of which are greater than the diameter of the wire 3, the wire 3 can move freely in the limit groove 402, which is convenient for pulling the wire 3 to adjust the position of the plug 2 when installing the plug 2.

[0081] In one embodiment, if Figure 1 As shown, the oil pump 4 also includes:

[0082] The axial direction Z1 of the driving shaft 404 and the electromagnetic valve 1 are parallel to the axial direction Z2 of the driving shaft 404. With this arrangement, the electromagnetic valve 1 is arranged horizontally in the engine, which is beneficial to reduce the effect of gravity on the electromagnetic valve 1, making the valve core control more precise, and also reduces space occupation, making the oil pump assembly structure more compact.

[0083] In one embodiment, if Figure 1 , Figure 2 , Figure 3 As shown, the oil pump 4 also includes:

[0084] The plug 2 is used to connect the control device to the outside to supply power to the solenoid valve 1. The second end of the wire 3 is electrically connected to the rear end of the plug 2. The front end of the plug 2 is provided with a socket and a plug terminal, and the rear end of the plug 2 is a closed structure. Figure 6 , Fig. 9 , Fig.10 As shown, when the plug 2 is installed in the mounting hole 501 on the skirt frame 5, the front end of the plug 2 is located outside the skirt frame 5, and the rear end of the plug 2 is located inside the skirt frame 5. The plug 2, the wire 3 and the solenoid valve 1 form a solenoid valve module.

[0085] In one embodiment, if Figure 3 , Figure 5 As shown, the plug 2 includes a body 201 and a limiting plate 206, the limiting plate 206 is fixedly connected to the body 201, and the limiting plate 206 is arranged near the end of the body 201, and does not affect the installation and fixation of the plug 2;

[0086] The limiting plate 206 includes a first edge 261 , and the distance between the first edge 261 and the central axis of the body 201 is different from other edges of the limiting plate 206 . The first edge 261 is used to identify the direction of the installation and fixing position of the plug 2 to prevent installation errors.

[0087] The distance between the first edge 261 and the central axis of the body 201 is different from that between the other edges of the limiting plate 206 , and only the first edge 261 can adapt to the distance between the installation fixing position and the central axis of the body 201 ;

[0088] The specific installation location is Figure 6 When the first edge 261 contacts the limiting plane 502, the plug 2 can be installed and fixed smoothly, and the socket of the plug 2 is fixed in direction, which is convenient for subsequent electrical connection with the control device. When the other edges of the limiting plate 206 contact the limiting plane 502, the distance from the central axis of the body 201 is not matched, and the limiting plate 206 will be blocked by the limiting plane 502, and the plug 2 cannot be installed and fixed.

[0089] By setting a limit plate 206 with a direction identification function, the plug 2 can be accurately installed in a fixed installation position, and can also be blindly inserted to prevent the plug 2 from being installed upside down or misplaced, avoiding the risk of installing the plug 2 in the wrong direction and facilitating subsequent electrical connection with the control device.

[0090] In the prior art, the limiting plate of the plug is usually a circular structure and does not have a direction identification function. After the plug is installed, the orientation of the socket is not fixed, which causes inconvenience in the subsequent electrical connection with the control device.

[0091] In one embodiment, if Figure 5 , Figure 6 As shown, the first edge 261 is a straight edge with obvious recognition. The first edge 261 can fit with the limiting plane 502 and slide relatively along the installation direction of the plug 2. After installation, the plug 2 cannot rotate circumferentially, and the socket direction of the plug 2 is fixed.

[0092] In one embodiment, if Figure 5 , Figure 6 As shown, the limiting plate 206 further includes a second edge 262, which is a straight edge and is disposed opposite to the first edge 261;

[0093] The distance between the first edge 261 and the central axis of the body 201 is S1, and the distance between the second edge 262 and the center of the body 201 is S2, where S1<S2.

[0094] By providing the second edge 262, the size of the limiting plate 206 can be reduced, making it easier to install the plug 2 in the engine. Although the second edge 262 is also a straight edge, the distance between the second edge 262 and the central axis of the body 201 is greater than the first edge 261. If the second edge 262 contacts the limiting plane 502, the plug 2 cannot be aligned with the mounting hole 501, resulting in the plug 2 being unable to be inserted into the mounting hole 501 for installation and fixation, thereby achieving direction recognition.

[0095] In one embodiment, if Figure 5 As shown, the limiting plate 206 further includes a third edge 265, which is a straight edge and is disposed perpendicular to the first edge 261;

[0096] The distance between the first edge 261 and the central axis of the body 201 is S1, and the distance between the third edge 265 and the central axis of the body 201 is S3, where S1<S3.

[0097] By providing the third edge 265, the size of the limiting plate 206 can be reduced, making it easier to install the plug 2 in the engine. Although the third edge 265 is also a straight edge, the distance between the third edge 265 and the central axis of the body 201 is greater than the first edge 261. If the third edge 265 contacts the limiting plane 502, the plug 2 cannot be aligned with the mounting hole 501, resulting in the plug 2 being unable to be inserted into the mounting hole 501 for installation and fixation, thereby achieving direction identification.

[0098] In one embodiment, if Figure 5 As shown, the limiting plate 206 further includes a fourth edge 266 . The fourth edge 266 is a curved edge, and its shape is different from that of the first edge 261 . Therefore, the fourth edge 266 can be easily distinguished from the first edge 261 .

[0099] The fourth edge 266 is provided with a connection hole 264 , and a screw can be arranged in the connection hole 264 to fix the plug 2 on the skirt frame 5 , thereby improving the stability of the plug 2 on the skirt frame 5 .

[0100] Moreover, the distance between the fourth edge 266 and the central axis of the main body 201 is also greater than the first edge 261. If the fourth edge 266 contacts the limiting plane 502, the plug 2 cannot be aligned with the mounting hole 501, resulting in the plug 2 being unable to be inserted into the mounting hole 501 for installation and fixation, thereby achieving direction identification.

[0101] In one embodiment, if Figure 6 , Figure 7 As shown, the plug 2 also includes:

[0102] A first elastic piece 202, wherein the first end of the first elastic piece 202 is a movable end, the second end of the first elastic piece 202 is fixedly connected to the body 201, and the first end of the first elastic piece 202 extends toward the front end of the body 201;

[0103] The first limiting protrusion 203 is disposed on the first elastic sheet 202 and located at a first end of the first elastic sheet 202 , and is used to prevent the first elastic sheet 202 from withdrawing from the installation and fixing position of the plug 2 .

[0104] The first limiting protrusion 203 can be set to a wedge shape, with its inclined surface facing the front end of the body 201 and its vertical surface facing the rear end of the body 201. The inclined surface is convenient for inserting into the mounting hole 501, and the vertical surface can be snap-fitted with the outer plane of the mounting hole 501.

[0105] When the plug 2 is inserted into the mounting hole 501, the first spring piece 202 is squeezed by the inner wall of the mounting hole 501 and elastically deformed. When the first limiting protrusion 203 passes over the mounting hole 501, the first spring piece 202 is reset so that the first limiting protrusion 203 is engaged with the outer plane of the mounting hole 501, thereby preventing the first spring piece 202 from withdrawing from the mounting hole 501 and maintaining the plug 2 in a stable connection with the mounting hole 501. When removing the plug 2, the first limiting protrusion 203 can be squeezed to elastically deform the first spring piece 202 until the engagement is released, and the plug 2 can be withdrawn from the mounting hole 501.

[0106] The first elastic piece 202, the first limiting protrusion 203 and the main body 201 can be made in one piece, and the material is plastic.

[0107] In one embodiment, if Figure 6 , Figure 7 As shown, the plug 2 also includes:

[0108] A second elastic piece 207, wherein the first end of the second elastic piece 207 is a movable end, the second end of the second elastic piece 207 is fixedly connected to the body 201, and the first end of the second elastic piece 207 extends toward the front end of the body 201;

[0109] The second limiting protrusion 208 is disposed on the second elastic sheet 207 and close to the first end of the second elastic sheet 207 , and is used to prevent the second elastic sheet 207 from withdrawing from the installation and fixing position of the plug 2 .

[0110] The second limiting protrusion 208 can be set to a wedge shape, with its inclined surface facing the front end of the main body 201 and its vertical surface facing the rear end of the main body 201. The inclined surface is convenient for inserting into the mounting hole 501, and the vertical surface can be snap-fitted with the external plane of the mounting hole 501.

[0111] During the process of inserting the plug 2 into the mounting hole 501, the second spring piece 207 is squeezed by the inner wall of the mounting hole 501 and elastically deformed. When the second limiting protrusion 208 passes over the mounting hole 501, the second spring piece 207 is reset so that the second limiting protrusion 208 is engaged with the outer plane of the mounting hole 501, thereby preventing the second spring piece 207 from withdrawing from the mounting hole 501 and maintaining the plug 2 in a stable connection with the mounting hole 501. When removing the plug 2, the second limiting protrusion 208 can be squeezed to elastically deform the second spring piece 207 until the engagement is released, and the plug 2 can be withdrawn from the mounting hole 501.

[0112] The second elastic piece 207, the second limiting protrusion 208 and the main body 201 can be made in one piece, and the material used is plastic.

[0113] By adding the second elastic piece 207 , the connection stability between the plug 2 and the mounting hole 501 is improved, and the risk of the plug 2 coming out of the mounting hole 501 is reduced.

[0114] In one embodiment, if Figure 7 As shown, the first elastic sheet 202 and the second elastic sheet 207 are arranged opposite to each other on the body 201 , the length of the first elastic sheet 202 is smaller than that of the second elastic sheet 207 , and the first end of the second elastic sheet 207 is closer to the front end of the body 201 than the first end of the first elastic sheet 202 .

[0115] The first spring piece 202 and the second spring piece 207 have different lengths. When the plug 2 is inserted into the mounting hole 501, the first end of the second spring piece 207 first enters the mounting hole 501 to play a guiding role. The second spring piece 207 will also first undergo elastic deformation, and then the first spring piece 202 enters the mounting hole 501. On the one hand, it can prevent the first spring piece 202 and the second spring piece 207 from being easily stuck in the mounting hole 501 when the length is the same. On the other hand, it can also reduce the installation resistance of the plug 2, making the installation smoother.

[0116] In one embodiment, if Figure 7 As shown, a support rib 209 is provided on the body 201 , and the support rib 209 is provided between the first elastic sheet 202 and the second elastic sheet 207 , so as to prevent the plug 2 from shaking in the installed fixed position.

[0117] Since the cross-sectional shape of the body 201 is not a standard circle, the support ribs 209 can expand the radial dimension of the body 201, and the shape where the support ribs 209 are provided can be a standard circle, and the radial dimension is closer to the inner diameter of the mounting hole 501, thereby improving the stability of the plug 2 in the mounting hole 501. The support ribs 209 are provided along the axial direction of the body 201, and a slope can be provided at the front end, which will not hinder the plug 2 from entering the mounting hole 501.

[0118] In one embodiment, if Figure 6 As shown, the limiting plate 206 is provided with reinforcing ribs 263 along one or both end faces in the thickness direction. By providing the reinforcing ribs 263, the structural strength of the limiting plate 206 can be improved to prevent the limiting plate 206 from breaking and causing the plug 2 to loosen in the installed fixed position.

[0119] In one embodiment, if Figure 6 , Figure 7 As shown, the plug 2 also includes:

[0120] Sealing ring 205;

[0121] The body 201 is provided with a sealing groove 204 , in which a sealing ring 205 is disposed. The sealing ring 205 is used to seal the installation and fixing position of the plug 2 .

[0122] The plug 2 is inserted into the mounting hole 501, and the sealing ring 205 can seal the gap between the plug 2 and the inner wall of the mounting hole 501 to prevent the lubricating oil (engine oil) from flowing out of the gap. The sealing ring 205 can be a rubber O-ring.

[0123] An embodiment of the utility model further provides an engine, comprising the oil pump 4 described in any one of the above embodiments.

[0124] In one embodiment, if Figure 8 , Fig. 9 , Fig.10 As shown, the engine also includes:

[0125] The skirt frame 5 is a part of the engine housing and is usually arranged at the crankcase. The skirt frame 5 is provided with a mounting hole 501. A limiting plane 502 is provided on one side of the mounting hole 501. The limiting plane 502 is provided corresponding to the first edge 261 of the limiting plate 206. The first edge 261 can fit with the limiting plane 502 and slide relatively along the installation direction of the plug 2. After installation, the plug 2 cannot rotate circumferentially, and the socket direction of the plug 2 is fixed.

[0126] In one embodiment, the mounting hole 501 may also be disposed at a suitable position of the cylinder block or the timing cover of the engine.

[0127] An embodiment of the utility model further provides a vehicle, comprising the engine described in any one of the above embodiments.

[0128] The utility model provides an oil pump, an engine and a vehicle, which have the following characteristics:

[0129] 1. The solenoid valve and the wiring harness are designed as an integrated structure, and the valve core of the solenoid valve is directly extended and connected to the plug. This structure simplifies the plug-in connection method of the solenoid valve and the wiring harness, avoiding the problem of disconnection between the wiring harness and the solenoid valve, which causes the oil pump variable displacement control to fail. The solenoid valve uses a proportional solenoid valve, and the P and A ports of the solenoid valve are set at the side of the solenoid valve, and the T port is at the bottom of the solenoid valve. The three openings are equipped with a filter structure outside, which is conducive to filtering oil impurities.

[0130] 2. The solenoid valve is arranged horizontally and parallel to the driving shaft. This arrangement is conducive to reducing the effect of gravity on the solenoid valve and reducing space occupation, making the oil pump assembly structure more compact. The solenoid valve is arranged at an angle below the skirt frame feedback oil port, and the oil can quickly flow from the inclined oil channel inside the pump body to the P port of the solenoid valve. This position also makes the overall wiring harness the shortest, which facilitates the fully variable oil pump to respond quickly to the ECU's command.

[0131] 3. By adopting a structural design in which the limit groove of the oil pump body is a hook, the solenoid valve harness is fixed and constrained to the oil pump body. Compared with the harness fixing method of the harness buckle, this installation method simplifies the design of the harness structure and makes it easier to fix the harness when assembling the oil pump. The hook structure design adopts the size L1<d to prevent the harness from coming out and effectively fix it on the pump body. With the size L2>L3>d, this design allows the harness position to be moved more freely when installing the plug, avoiding the situation of repeatedly inserting the harness buckle when installing the plug.

[0132] 4. The anti-escape structure design of the plug head prevents the plug from falling out of the skirt frame into the engine when the engine is running and shaking, using the hook structure on both sides. Before inserting the plug into the skirt frame mounting hole, the two springs can be squeezed to make it smaller than the skirt frame mounting hole, and then inserted into the skirt frame mounting hole. The two springs are tightly fitted in the skirt frame mounting hole due to elastic expansion. The function of the sealing ring on the plug is to prevent the oil from flowing out of the skirt frame mounting hole when the engine is running.

[0133] 5. The stop plate structure of the plug is conducive to limiting the position and determines the size of the plug extending out of the skirt. On the other hand, it prevents the plug from being installed upside down or misplaced. The structure of the stop plate is not a standard circle, but the lower edge is longer and flat, parallel to the mounting surface of the skirt mounting hole, and the upper edge is shorter to distinguish it from the lower edge. The stop plate of the plug and the skirt mounting hole have a horizontal and vertical positioning design structure, making the installation positioning more accurate.

[0134] The processes and steps described in all the above preferred embodiments are only examples. Unless adverse effects occur, various processing operations can be performed in a sequence different from the sequence of the above processes. The sequence of steps in the above processes can also be increased, merged or deleted according to actual needs.

[0135] In understanding the scope of the present invention, the term "comprising" and its derivatives as used herein are intended to be open terms, which specify the existence of the recorded features, elements, components, groups, wholes and / or steps, but do not exclude the existence of other unrecorded features, elements, components, groups, wholes and / or steps. This concept also applies to words with similar meanings, such as the terms "including", "having" and their derivatives.

[0136] The terms "attached" or "attached" as used herein include: a configuration where an element is directly secured to another element by directly securing the element to the other element; a configuration where an element is indirectly secured to another element by securing the element to an intermediate member which in turn is secured to the other element; and a configuration where one element is integral with the other element, i.e., one element is substantially a part of the other element. This definition also applies to words with similar meanings such as "connect," "connect," "couple," "mount," "bond," "fix," and their derivatives. Finally, terms of degree such as "substantially," "approximately," and "approximately" as used herein represent the amount of deviation that modifies the term such that the end result will not be significantly changed.

[0137] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. The features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise specified in the other embodiment.

[0138] The utility model has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model.

Claims

1. An oil pump, characterized in that: include: Solenoid valve (1); A wire (3), a first end of the wire (3) being electrically connected to the solenoid valve (1); A pump body (401), wherein a limiting groove (402) is arranged at the edge of the pump body (401), and the wire (3) is passed through the limiting groove (402) and can move in the limiting groove (402).

2. The oil pump according to claim 1, characterized in that: An inlet and outlet (403) is provided at the edge of the pump body (401), the inlet and outlet (403) is connected to the limiting groove (402), and the wire (3) can enter and exit the limiting groove (402) through the inlet and outlet (403).

3. The oil pump according to claim 2, characterized in that: The width of the inlet and outlet (403) is L1, the width of the limiting groove (402) is L2, the depth of the limiting groove (402) is L3, the diameter of the wire (3) is d, and the diameter of the elastic deformation of the wire (3) when being squeezed is dmin; dmin≤L1<d; L2>d; L3>d.

4. The oil pump according to claim 1, characterized in that: Also includes: A driving shaft (404), wherein the axial direction (Z1) of the solenoid valve (1) is parallel to the axial direction (Z2) of the driving shaft (404).

5. The oil pump according to claim 1, characterized in that: Also includes: The plug (2) has a second end of the wire (3) electrically connected to a rear end of the plug (2).

6. The oil pump according to claim 5, characterized in that: The plug (2) comprises: Ontology(201); a limiting plate (206), wherein the limiting plate (206) is fixedly connected to the main body (201); The limiting plate (206) comprises a first edge (261), the distance between the first edge (261) and the central axis of the body (201) being different from that of other edges of the limiting plate (206), and the first edge (261) being used for identifying the direction of the installation fixing position of the plug (2) to prevent installation errors.

7. The oil pump according to claim 6, characterized in that: The first edge (261) is a straight edge.

8. The oil pump according to claim 6, characterized in that: The limiting plate (206) further comprises a second edge (262), the second edge (262) being a straight edge and being arranged opposite to the first edge (261); the distance between the first edge (261) and the central axis of the body (201) is S1, the distance between the second edge (262) and the central axis of the body (201) is S2, S1<S2; and / or, The limiting plate (206) further includes a third edge (265), which is a straight edge and is arranged perpendicular to the first edge (261); the distance between the first edge (261) and the central axis of the body (201) is S1, and the distance between the third edge (265) and the central axis of the body (201) is S3, and S1<S3.

9. The oil pump according to claim 6, characterized in that: The plug (2) further comprises: A spring sheet, wherein the first end of the spring sheet is a movable end, the second end of the spring sheet is fixedly connected to the body (201), and the first end of the spring sheet extends toward the front end of the body (201); A limiting protrusion is arranged on the spring sheet and is located at the first end of the spring sheet or close to the first end of the spring sheet, and is used to prevent the spring sheet from withdrawing from the installation and fixing position of the plug (2).

10. The oil pump according to claim 9, characterized in that: There are at least two spring sheets, which are arranged opposite to each other on the main body (201), wherein the length of one of the spring sheets is greater than the length of the other spring sheet, and the first end of one of the spring sheets is closer to the front end of the main body (201) than the first end of the other spring sheet.

11. An engine, characterized in that: include: The oil pump (4) according to any one of claims 1 to 10; A skirt frame (5), wherein the oil pump (4) is arranged close to an end side wall of the skirt frame (5); A mounting hole (501) is provided on the end side wall of the skirt frame (5); a plug (2) of the oil pump (4) is provided in the mounting hole (501); and a front end of the plug (2) extends out from the end side wall of the skirt frame (5).

12. A vehicle, characterized in that: Comprising the oil pump (4) according to any one of claims 1 to 10 or the engine according to claim 11.

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