A diesel engine high pressure pump connector

Abstract

The application provides a diesel engine high-pressure pump connector, and belongs to the technical field of diesel engine high-pressure pumps. The connector comprises a joint and a socket. The joint is connected with a diesel engine high-pressure oil pump. The joint comprises a joint shell, and the joint shell has a cavity. The socket is connected with a wire harness. The socket comprises a socket shell, the socket shell is detachably arranged in the cavity of the joint shell, the socket shell has a containing space, two clamps are symmetrically arranged on the joint shell, each clamp comprises a limiting clamp slot, two buckles are symmetrically arranged on the socket shell, each buckle comprises a limiting clamp block, the limiting clamp block can be clamped into the corresponding limiting clamp slot, a pin is arranged in the joint shell, a slot is arranged in the containing space of the socket shell, the pin can be inserted into the slot, and a plurality of limiting springs are arranged between the socket shell and the slot. The diesel engine high-pressure pump connector can reduce the wear of the pin connection, and prevent poor contact of the wire harness due to wear.

Description

Technical Field

[0001] This application relates to the field of diesel engine high-pressure pump technology, and more specifically, to a diesel engine high-pressure pump connector. Background Technology

[0002] In the high-pressure oil pump system of a diesel engine, the high-pressure oil pump is physically connected to the wiring harness through connectors. It relies on the contact between the metal pins and the metal slots inside the connectors to transmit electrical signals. Continuous and stable pin-slot contact signal transmission plays a key role in the stable operation of the oil pump.

[0003] The existing diesel engine high-pressure oil pump connector uses a rigid connection between the pins and the socket. Since the high-frequency vibration generated during the operation of the diesel engine and oil pump is directly transmitted to the pins, when the vibration acceleration of the connector is greater than 25g, abnormal wear is likely to occur at the contact position between the pins and the socket. Severe wear can lead to poor circuit contact and thus cause malfunctions.

[0004] Therefore, there is an urgent need for a diesel engine high-pressure pump connector that can reduce wear at the pin connection. Utility Model Content

[0005] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, this application provides a diesel engine high-pressure pump connector that can reduce wear at the pin connection and prevent poor wiring contact due to wear.

[0007] This application provides a diesel engine high-pressure pump connector, including a connector and a socket. The connector is connected to a diesel engine high-pressure fuel pump. The connector includes a connector housing with a cavity inside. The socket is connected to a wiring harness and includes a socket housing. The socket housing is detachably disposed within the cavity of the connector housing and has a receiving space. Two clips are symmetrically disposed on the connector housing, each clip including a limiting slot. Two buckles are symmetrically disposed on the socket housing, each buckle including a limiting block that can be engaged into a corresponding limiting slot. A pin is disposed within the connector housing. A slot is disposed within the receiving space of the socket housing, and the pin can be inserted into the slot. Multiple limiting springs are disposed between the socket housing and the slot.

[0008] In some embodiments, the connector further includes: two pin top blocks symmetrically disposed on the connector housing; and two pin backstop blocks symmetrically disposed on the connector housing, each pin backstop block being connected to a corresponding pin top block, the two pin top blocks and the two pin backstop blocks forming a triangular cavity.

[0009] In some embodiments, the connector further includes: a pin limiting block, the pin limiting block being triangular in shape, the pin limiting block being disposed within a triangular cavity, and the pins being connected to the pin limiting block.

[0010] In some embodiments, the socket further includes: two slot top blocks symmetrically disposed on the socket housing; and two slot backstop blocks symmetrically disposed on the socket housing, each slot backstop block being connected to a corresponding slot top block, the two slot top blocks and the two slot backstop blocks forming a trapezoidal cavity.

[0011] In some embodiments, the socket further includes: a slot limiting block, the slot limiting block being trapezoidal in shape, the slot limiting block being disposed within the trapezoidal cavity, and the slot limiting block being disposed at the end of the socket away from the pin limiting block.

[0012] In some embodiments, each buckle includes an elastic leg and a cantilever structure, wherein the cantilever structure includes a limiting block and a pinching block, the limiting block and the pinching block being movable around the elastic leg, and each limiting block cooperating with the limiting slot of the corresponding buckle.

[0013] In some embodiments, the pins are elongated columns, the slots have corresponding grooves inside, and the pins are inserted into the slots.

[0014] In some embodiments, the size of the triangular cavity formed by the two pin top blocks and the two pin backstop blocks is larger than the size of the pin limiting block, and the pin limiting block has no direct contact with each pin top block and each pin backstop block.

[0015] In some embodiments, the size of the trapezoidal cavity formed by the two slot top blocks and the two slot backstop blocks is larger than the size of the slot limiting block, and the slot limiting block has no direct contact with each slot top block and each slot backstop block.

[0016] In some embodiments, multiple limiting springs support the outside of the slot, and the slot is suspended.

[0017] Compared with the prior art, the technical solution provided in this application includes at least the following technical effects:

[0018] This application provides a diesel engine high-pressure pump connector that reduces wear at the pin connection points and prevents poor wiring contact due to wear. When connecting to a diesel engine high-pressure oil pump, the connector housing is inserted into the cavity of the connector housing. The locking block of the snap-fit ​​automatically engages with the locking slot under elastic action, achieving a quick connection. Simultaneously, the pins are inserted into the corresponding slots, establishing a transmission channel for electrical signals. During operation, the high-pressure oil pump and diesel engine vibrate. The limiting spring provides elastic support to the slot, preventing the slot and pins from contacting the connector housing and connector housing, reducing the impact of vibration on the contact position between the slot and pins. When it is necessary to disconnect the wiring harness from the high-pressure oil pump, the locking block is disengaged from the locking slot by squeezing the snap-fit, and the connector housing is pulled out, thus separating the connector from the snap-fit.

[0019] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the structure of a diesel engine high-pressure oil pump connector according to some embodiments of this application;

[0022] Figure 2 This is a schematic diagram of the connector structure according to some embodiments of this application;

[0023] Figure 3 This is a schematic diagram of the socket structure of some embodiments of this application.

[0024] in, Figures 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0025] 1. Connector; 11. Connector housing; 111. Pin top block; 112. Pin anti-reverse block; 113. Clamp; 12. Pin; 121. Pin limit block;

[0026] 2. Socket; 21. Socket housing; 211. Slot top block; 212. Slot anti-reverse block; 213. Snap-fit; 22. Slot; 221. Slot limit block; 23. Limit spring. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0029] The following reference Figures 1 to 3 This application describes a diesel engine high-pressure pump connector provided according to some embodiments.

[0030] like Figure 1 As shown, the diesel engine high-pressure pump connector provided according to some embodiments of this application includes a connector 1 and a socket 2. The connector 1 is connected to the diesel engine high-pressure oil pump. The connector 1 includes a connector housing 11 with a cavity. The socket 2 is connected to a wiring harness. The socket 2 includes a socket housing 21, which is detachably disposed in the cavity of the connector housing 11 and has a receiving space. Two clips 113 are symmetrically disposed on the connector housing 11, each clip 113 including a limiting slot. Two buckles 213 are symmetrically disposed on the socket housing 21, each buckle 213 including a limiting block that can be engaged in the corresponding limiting slot. A pin 12 is disposed in the connector housing 11. A slot 22 is disposed in the receiving space of the socket housing 21, and the pin 12 can be inserted into the slot 22. A plurality of limiting springs 23 are disposed between the socket housing 21 and the slot 22.

[0031] In this embodiment, when connecting to the high-pressure oil pump of the diesel engine, the limiting block of the buckle 213 automatically engages with the limiting slot of the clip 113 under elastic action by inserting the socket housing 21 into the cavity of the connector housing 11, achieving a quick connection. At the same time, the pin 12 is inserted into the corresponding slot 22 to establish an electrical signal transmission channel. During operation, the high-pressure oil pump and the diesel engine vibrate, and the limiting spring 23 provides elastic support for the slot 22, so that the slot 22 and the pin 12 do not contact the socket housing 21 and the connector housing 11, reducing the impact of vibration on the contact position of the slot 22 and the pin 12. When it is necessary to disconnect the connection between the wiring harness and the high-pressure oil pump, the limiting block is disengaged from the limiting slot by squeezing the buckle 213, and the socket housing 21 is pulled out, thereby separating the connector 1 from the socket 2.

[0032] In some possible embodiments, such as Figure 2 As shown, the connector 1 further includes: two pin top blocks 111, symmetrically arranged on the connector housing 11; two pin anti-retraction blocks 112, symmetrically arranged on the connector housing 11, each pin anti-retraction block 112 being connected to the corresponding pin top block 111, the two pin top blocks 111 and the two pin anti-retraction blocks 112 forming a triangular cavity; and a pin limiting block 121, which is triangular in shape and disposed within the triangular cavity, with the pin 12 connected to the pin limiting block 121.

[0033] In this embodiment, the pin limiting block 121 is limited by the triangular cavity formed by the pin top block 111 and the pin anti-retraction block 112. When the connector is inserted, the pin 12 moves towards the connector housing 11 under force. At this time, the pin limiting block 121 is held in place by the pin top block 111, which keeps the pin limiting block 121 in a stable position and guides the pin 12 to be smoothly inserted into the slot 22, ensuring that the insertion action is accurate. When the connector is pulled out, the pin 12 moves outward with the slot 22. During the movement, the pin limiting block 121 is held in place by the pin anti-retraction block 112, which provides stable support and reaction force for the pin 12, so that the pin 12 can be smoothly pulled out of the slot 22, ensuring the smoothness and stability of the pull-out process.

[0034] In some possible embodiments, such as Figure 3 As shown, the socket 2 also includes: two slot top blocks 211, symmetrically arranged on the socket housing 21; two slot backstop blocks 212, symmetrically arranged on the socket housing 21, each slot backstop block 212 being connected to the corresponding slot top block 211, the two slot top blocks 211 and the two slot backstop blocks 212 forming a trapezoidal cavity; and a slot limiting block 221, which is trapezoidal in shape and disposed within the trapezoidal cavity, at the end of the slot 22 away from the pin limiting block 121.

[0035] In this embodiment, the slot limiting block 221 is limited by the trapezoidal cavity formed by the slot top block 211 and the slot anti-retraction block 212. When the connector is inserted, the pin 12 gradually inserts into the slot 22. The slot limiting block 221 receives the holding action of the slot top block 211, so that the slot limiting block 221 maintains a stable position and guides the pin 12 to be smoothly inserted into the slot 22, ensuring that the insertion action is accurate. When the connector needs to be removed, the pin 12 moves outward with the slot 22. At this time, the slot limiting block 221 is blocked by the slot anti-retraction block 212 during the movement. The blocking action of the slot anti-retraction block 212 on the slot limiting block 221 provides a stable force and reaction force for the pin 12, so that the pin 12 can be smoothly pulled out of the slot 22, ensuring the smoothness and stability of the removal process.

[0036] In some possible embodiments, such as Figure 1 As shown, each buckle 213 includes an elastic leg and a cantilever structure, wherein the cantilever structure includes a limiting block and a pinching block, the limiting block and the pinching block can move around the elastic leg, and each limiting block cooperates with the limiting slot of the corresponding buckle 113.

[0037] In this embodiment, when the socket housing 21 is inserted into the cavity of the connector housing 11, the limiting block of the buckle 213 contacts the guide slope of the clip 113, generating axial and radial forces. The elastic leg undergoes elastic bending under the action of the radial force. At this time, the cantilever structure drives the limiting block to deform outward. When the limiting block passes the edge of the limiting slot of the clip 113, the radial force disappears, the elastic leg releases elastic potential energy, and pushes the cantilever structure to reset. The limiting block is embedded in the limiting slot. At this time, the socket housing 21 and the connector housing 11 are in a fixed state. When pulling out, by pressing the pinch block of the buckle 213, the cantilever structure rotates with the elastic leg as the fulcrum. The limiting block is dislodged from the limiting slot under the rotation of the cantilever. Then, the socket housing 21 can be pulled out backward to achieve disengagement. The operation is simple and convenient.

[0038] In some possible embodiments, such as Figure 1 As shown, pin 12 is a slender column, and the slot 22 has a corresponding groove inside, with pin 12 inserted into the slot 22.

[0039] In this embodiment, the pin 12 forms a multi-point contact with the inner wall of the slot 22. Current is transmitted between the pin 12 and the slot 22 through the contact points. The internal groove structure of the slot 22 provides precise positioning guidance for the pin 12. During the insertion process, the slender pin 12 can slide smoothly along the groove wall of the slot 22, ensuring that the pin 12 is accurately inserted into the predetermined position. This avoids problems such as bending, damage or poor contact of the pin 12 due to inaccurate positioning, and improves the accuracy and efficiency of assembly.

[0040] In some possible embodiments, such as Figure 2 As shown, the size of the triangular cavity formed by the two pin top blocks 111 and the two pin backstop blocks 112 is larger than the size of the pin limiting block 121, and the pin limiting block 121 has no direct contact with each pin top block 111 and each pin backstop block 112.

[0041] In this embodiment, the size of the triangular cavity is larger than that of the pin limiting block 121. Under vibration conditions, the pin limiting block 121 can float slightly within the triangular cavity, reducing the impact transmission between the pin 12 and the slot 22. This provides the pin limiting block 121 with multi-directional floating space. The pin limiting block 121 has no direct contact with the pin top block 111 and the pin anti-retraction block 112. A non-rigid connection is achieved through clearance fit, avoiding vibration transmission caused by rigid connection.

[0042] In some possible embodiments, such as Figure 3 As shown, the size of the trapezoidal cavity formed by the two slot top blocks 211 and the two slot anti-retraction blocks 212 is larger than the size of the slot limiting block 221, and the slot limiting block 221 has no direct contact with each slot top block 211 and each slot anti-retraction block 212.

[0043] In this embodiment, the lateral and longitudinal dimensions of the trapezoidal cavity are both larger than those of the slot limiting block 221, providing the slot limiting block 221 with multi-directional floating degrees of freedom. The slot limiting block 221 has no direct contact with the slot top block 211 and the slot anti-reverse block 212. A non-rigid connection is achieved through clearance fit, avoiding vibration transmission caused by rigid connection.

[0044] In some possible embodiments, such as Figure 3 As shown, multiple limiting springs 23 are supported on the outside of the slot 22, and the slot 22 is in a suspended state.

[0045] In this embodiment, multiple limiting springs 23 are disposed between the socket housing 21 and the slot 22, and are evenly and symmetrically distributed to ensure that the slot 22 receives uniform support force. Due to the support of the limiting springs 23, the slot 22 is suspended in the socket housing 21, so that the slot 22 undergoes slight deformation when subjected to external force. In addition, the limiting springs 23 have a buffering effect and can absorb the stress caused by vibration, which helps to protect the slot 22 and pin 12 from damage and improve the reliability and durability of the connector.

[0046] When the diesel engine high-pressure pump connector is in operation, and the diesel engine is connected to the high-pressure oil pump, the connector housing 21 is inserted into the cavity of the connector housing 11. At this time, the limiting block of the latch 213 contacts the guide slope of the clamp 113, generating axial and radial forces. Under the action of the radial force, the elastic leg undergoes elastic bending, and the cantilever structure drives the limiting block to retract inward. When the limiting block passes the edge of the limiting groove of the clamp 113, the radial force disappears, the elastic leg releases elastic potential energy, and pushes the cantilever. The structure resets, the limiting block embeds into the limiting slot, achieving initial positioning. The connector 2 continues to move forward until the pin top block 111 abuts against the pin limiting block 121, and the slot top block 211 abuts against the slot limiting block 221. At this point, pin 12 and slot 22 are inserted into the working position. Then, connector 2 retracts to the working state, and pin 12 and slot 22 return to the working position under the action of the limiting spring 23, forming a stable connection. Furthermore, the pin limiting block 121 and connector housing 11 have no direct contact, and slot 22 has no direct contact with connector housing 21, achieving a non-rigid connection. During operation, the vibration generated by the diesel engine's high-pressure oil pump is absorbed by the limiting spring 23. Slot 22 can slightly float with the slight vibration of pin 12, reducing the impact of vibration on the connector. The limiting spring 23 provides elastic support for slot 22, preventing slot 22 and pin 12 from contacting connector housing 21 and connector housing 11, reducing the impact of vibration on the contact position between slot 22 and pin 12, and ensuring stable electrical signals. When it is necessary to disconnect the connection between the wiring harness and the high-pressure oil pump, the cantilever structure rotates lever-like with the elastic leg as the fulcrum by pinching the pinching block of the snap fastener 213. The limit block disengages from the limit slot, and at the same time, the pin anti-reverse block 112 locks the pin limit block 121, and the slot anti-reverse block 212 locks the main slot limit block 221 to prevent unnecessary displacement of the pin 12 and the slot 22 during the pulling process. Finally, the connector 1 and the socket 2 can be completely separated by pulling out the socket housing 21.

[0047] In this application, it should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" 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 application and 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 application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" 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. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0050] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] In this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A diesel engine high-pressure pump connector, characterized in that, include: A connector for connection to a high-pressure oil pump of a diesel engine, the connector including a connector housing having a cavity inside the connector housing; A connector for connecting to a wire harness, the connector including a connector housing, the connector housing being detachably disposed within a cavity of the connector housing, the connector housing having a receiving space; Two clips are symmetrically arranged on the connector housing, and each clip includes a limiting groove; Two buckles are symmetrically arranged on the socket housing. Each buckle includes a limiting block that can be engaged into a corresponding limiting slot. Pins are located inside the connector housing; A slot is provided within the receiving space of the socket housing, and the pin can be inserted into the slot; Multiple limiting springs are disposed between the socket housing and the slot.

2. The diesel engine high-pressure pump connector according to claim 1, characterized in that, The connector also includes: Two pin top blocks are symmetrically arranged on the connector housing; Two pin anti-retraction blocks are symmetrically arranged on the connector housing. Each pin anti-retraction block is connected to the corresponding pin top block, and the two pin top blocks and the two pin anti-retraction blocks form a triangular cavity.

3. The diesel engine high-pressure pump connector according to claim 2, characterized in that, The connector also includes: A pin limiting block, the pin limiting block being triangular in shape, the pin limiting block being disposed within the triangular cavity, and the pin being connected to the pin limiting block.

4. The diesel engine high-pressure pump connector according to claim 1, characterized in that, The socket also includes: Two slot top blocks are symmetrically arranged on the socket housing; Two slot anti-retraction blocks are symmetrically arranged on the socket housing. Each slot anti-retraction block is connected to the corresponding slot top block, and the two slot top blocks and the two slot anti-retraction blocks form a trapezoidal cavity.

5. The diesel engine high-pressure pump connector according to claim 4, characterized in that, The socket also includes: A slot limiting block, the slot limiting block being trapezoidal in shape, the slot limiting block being disposed within the trapezoidal cavity, and the slot limiting block being disposed at the end of the slot away from the pin limiting block.

6. The diesel engine high-pressure pump connector according to claim 1, characterized in that: Each of the buckles includes an elastic leg and a cantilever structure, wherein the cantilever structure includes a limiting block and a pinching block, the limiting block and the pinching block being movable around the elastic leg, and each limiting block cooperating with the limiting slot of the corresponding buckle.

7. The diesel engine high-pressure pump connector according to claim 1, characterized in that: The pin is slender and columnar, and the slot has a corresponding groove inside, with the pin inserted into the slot.

8. The diesel engine high-pressure pump connector according to claim 2, characterized in that: The size of the triangular cavity formed by the two pin top blocks and the two pin anti-retraction blocks is larger than the size of the pin limiting block, and the pin limiting block has no direct contact with each pin top block and each pin anti-retraction block.

9. The diesel engine high-pressure pump connector according to claim 4, characterized in that: The size of the trapezoidal cavity formed by the two slot top blocks and the two slot anti-reverse blocks is larger than the size of the slot limiting block, and the slot limiting block has no direct contact with each of the slot top blocks and each of the slot anti-reverse blocks.

10. The diesel engine high-pressure pump connector according to claim 1, characterized in that: Multiple limiting springs support the outside of the slot, which is in a suspended state.

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