Plug-in assembly for automobile differential mechanism

Abstract

The utility model relates to the technical field of connectors, in particular to a plugging assembly for an automobile differential mechanism, which comprises an embedded part assembled inside a casing cylinder, the embedded part is connected with an external connecting piece outside a cylinder through a tuning fork terminal piece, the tuning fork terminal piece is arranged in an injection molding shell, and the injection molding shell penetrates through and is communicated with the inside and the outside of the casing cylinder; the tuning fork terminal piece comprises a base matched with the inner wall of the injection molding shell, a contact pin connected with the external connecting piece is arranged on one side of the base, and a tuning fork terminal connected with the embedded piece is arranged on the other side of the base. According to the connector assembly capable of penetrating through the cylinder body to provide conductive connection, when the connector assembly is used, an external connecting piece is directly inserted into the outward contact pins of the connector assembly, the tuning fork terminals in the connector assembly serve as embedded parts, the tuning fork terminals are integrated on an injection molding part through the injection molding technology, the size is small, and the occupied space in the cylinder is small; in addition, the connector which is directly immersed in oil and used is sealed with the opening of the machine shell, and oil in the cylinder is prevented from seeping out.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a connector assembly for automotive differentials. Background Technology

[0002] The electronic differential lock automatically detects the rotational speed of the two drive wheels using sensors in the ABS system. This helps determine if the wheels have lost traction, thus controlling acceleration and wheel slippage. The center differential adjusts the speed difference between the front and rear wheels to maintain consistent wheel rotation speeds during cornering.

[0003] When one drive wheel slips, the differential lock locks the differential housing and half-shaft together, disabling the differential's differential function. This allows all torque to be transferred to the other drive wheel. The differential lock is a precisely designed housing and cylinder assembly with internal gear oil lubrication and transmission. The electronic differential uses an electromagnetic coil to generate magnetic force to control the torque distribution of the transmission system. The differential, differential lock, and internal oil tank structure need to be electrically connected via connectors to transmit current or signals. The connectors are mounted on the oil cylinders to connect the internal and external components. The installation space is small, and it is necessary to protect against oil and water.

[0004] However, the connectors in the existing technology are large in size and occupy a lot of space in the fuel tank, reducing the fuel tank load. Therefore, there is an urgent need for a connector assembly for automotive differentials that meets the requirements of small size, sealing, waterproofing and oil resistance. Utility Model Content

[0005] The purpose of this invention is to provide a connector assembly for automotive differentials to solve the technical problems of existing connectors being immersed in the hydraulic cylinder, occupying a large space, and having insufficient sealing.

[0006] The technical solution of this utility model is: a connector assembly for an automobile differential, including an embedded part assembled inside the cylinder body of the housing, the embedded part being connected to an external connector outside the cylinder via a tuning fork terminal piece, the tuning fork terminal piece being built into an injection molded housing, the injection molded housing being through and communicating with the inside and outside of the cylinder body of the housing;

[0007] The tuning fork terminal component includes a base that mates with the inner wall of the injection-molded housing, a pin for connecting the external connector is provided on one side of the base, and a tuning fork terminal for connecting the embedded component is provided on the other side of the base.

[0008] Preferably, the embedded component includes a base cylinder, and the interior of the base cylinder is separated by a partition plate to form a terminal cavity, and at least one blade terminal is correspondingly provided in each terminal cavity;

[0009] The blade terminal and the tuning fork terminal are in contact with each other, and the number of tuning fork terminals and the number of pins are in correspondence and connected accordingly.

[0010] Preferably, the tuning fork terminal is generally flat and includes a cantilever beam and a contact portion, wherein the cantilever beam is connected to the bottom of the base via a transition section;

[0011] The contact portion is configured as a set of mirror-arranged clamping spring arms, and a set of clamping contacts protruding from the clamping spring arms are provided. The clamping contacts are opposite to each other and contact each other, forming a clamping cavity between the two clamping spring arms to clamp and accommodate the blade terminal.

[0012] The ends of the clamping arms on both sides are respectively provided with guide front ends, which are configured as outwardly extending pointed corners.

[0013] Preferably, the injection-molded housing is cylindrical in shape, and an outer edge mounting plate is provided extending outward on one lateral side of the injection-molded housing. The outer edge mounting plate is fixed to the outer wall of the housing cylinder by fasteners and bushings.

[0014] Preferably, the injection-molded housing is fitted with a sealing ring via a sealing groove on its outer side wall.

[0015] Preferably, the portion of the injection-molded housing protruding from the cylinder body is configured as a hollow cylindrical shell, and a set of locking structures are symmetrically arranged on the outer wall of the protruding portion for fixing and locking when inserting and connecting external connectors.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] This invention proposes a connector that can provide conductive connection through the cylinder body. In use, the external connector is directly inserted into the outward-facing pin of the connector. The tuning fork terminals inside the connector are embedded parts. Through injection molding, multiple tuning fork terminals are integrated into the injection molded part, which is small in size and occupies little space inside the cylinder. Furthermore, the connector used for direct immersion in oil is sealed with the opening of the housing to prevent oil leakage from the cylinder. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a three-dimensional exploded view of the connector assembly described in this utility model;

[0020] Figure 2 This is a schematic diagram of the connector assembly of this utility model being assembled and fixed on the cylinder block of the machine housing;

[0021] Figure 3 This is a first cross-sectional view of the connector assembly described in this utility model;

[0022] Figure 4 This is a second cross-sectional view of the connector assembly described in this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of a conventional tuning fork terminal provided by this utility model;

[0024] Figure 6 This is a three-dimensional schematic diagram of the embedded part described in this utility model;

[0025] Figure 7 A three-dimensional schematic diagram of the tuning fork terminal provided by this utility model;

[0026] The components include: 1. Tuning fork terminal piece; 2. Embedded part; 3. Injection molded housing; 4. Machine housing cylinder; 5. Sealing ring; 6. Fixing part; 7. Bushing; 8. Locking structure;

[0027] 11. Base; 12. Pin; 13. Tuning fork terminal; 21. Base tube; 22. Spacer plate; 23. Blade terminal; 30. Outer edge mounting plate;

[0028] 131. Transition section; 132. Cantilever beam; 133. Clamping spring arm; 134. Clamping contact; 135. Clamping cavity; 136. Guide front end; 300. Sealing groove. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to specific embodiments:

[0030] like Figure 1 As shown, a connector assembly for an automotive differential includes an embedded part 2 mounted inside a cylinder block 4. The embedded part 2 is connected to an external connector outside the cylinder via a tuning fork terminal 1. The tuning fork terminal 1 is housed within an injection-molded housing 3, which extends through and connects the inside and outside of the cylinder block 4. (See attached diagram.) Figure 2 As shown, a schematic diagram is provided of the connector assembly fixed in the housing cylinder 4. The housing cylinder 4 contains oil, and parts of the embedded part 2 and the injection molded housing 3 are immersed in the oil.

[0031] The dimensions of the injection housing 3 directly affect the space it occupies within the housing cylinder 4. The dimensions of the internal terminals of the injection housing 3 and the space occupied by the assembly directly affect the dimensions of the injection housing 3.

[0032] In this embodiment, the terminals inside the injection-molded housing 3 are tuning fork terminals, as shown in the attached diagram. Figure 3 Combined with appendix Figure 7As shown, the tuning fork terminal 1 includes a base 11, which is flat and fixed to the inner wall of the injection-molded housing 3. A pin 12 is provided on the side of the base 11 facing the outside of the housing cylinder 4. The pin 12 is connected to an external connector (not shown in the figure). A tuning fork terminal 13 is connected to the side of the base 11 facing the inside of the housing cylinder 4. The tuning fork terminal 13 is connected to the embedded part 2. The number of tuning fork terminals 13 and pins 12 corresponds one-to-one and they are connected accordingly.

[0033] Specifically, the tuning fork terminal 13 is generally flat and includes a cantilever beam 132 and a contact portion. The cantilever beam 132 is connected to the bottom of the base 11 through a transition section 131 to provide positive force when the terminal is in contact.

[0034] See attached document Figure 7 The schematic diagram shows that the contact portion is configured as a set of mirror-arranged clamping spring arms 133, and a set of clamping contacts 134 protruding from the clamping spring arms. The clamping contacts 134 are opposite to each other and contact each other, forming a clamping cavity 135 between the two clamping spring arms to clamp and accommodate the blade terminal 23. The ends of the two clamping spring arms 133 are respectively provided with guide front ends 136, which are configured as outwardly extending pointed corners to facilitate terminal guidance and insertion.

[0035] See attached document Figure 5 The diagram provided shows a standard tuning fork terminal block. Each tuning fork structure corresponds to one soldering pin, which is then connected to the terminal block. (See attached diagram.) Figure 7 In this embodiment, the tuning fork terminal 13 is used as an embedded component. Through injection molding, multiple tuning fork terminals 13 are integrated on a base 11. The tuning fork terminals are flat, and multiple tuning fork terminals can be integrated within a limited 360-degree range of the end face of the base 11. Figure 7 The diagram shows an integrated two tuning fork terminals. However, it is possible to integrate 4, 6, 8, etc., depending on actual needs, increasing the number of tuning fork terminals without increasing the size of the injection-molded housing 3 and the base. The overall structure is small in size and occupies little space, making it suitable for any appropriate multi-PIN terminal situation.

[0036] See attached document Figure 6 The embedded component 2 includes a base cylinder 21, which is divided by a spacer plate 22 to form terminal cavities. At least one blade terminal 23 is provided in each terminal cavity. The spacer plate 22 can prevent short circuits caused by foreign objects, increase creepage distance, and improve safety. The blade terminal 23 is in contact with the tuning fork terminal 13. The blade terminal 23 is flat and the top is set as a blade-shaped oblique edge.

[0037] The blade terminal 23 and the tuning fork terminal 13 are connected by a bifurcated interface, and the clamping contact 134 clamps the blade terminal. The structure is simple and the cost is low.

[0038] The injection-molded housing 3 is generally sleeve-shaped, and an outer edge mounting plate 30 is provided extending outward on one lateral side of the injection-molded housing 3, as shown in the attached figure. Figure 1 Combined with appendix Figure 4 As shown, the outer edge mounting plate 30 is assembled and fixed to the outer wall of the cylinder block 4 by fasteners 6 and bushings 7.

[0039] In addition, the injection molded housing 3 is fitted with a sealing ring 5 through the sealing groove 300 on the outer side wall to seal the openings of the injection molded housing 3 and the housing, preventing oil leakage from the cylinder.

[0040] The portion of the injection-molded housing 3 that protrudes from the cylinder body 4 is designed as a hollow cylindrical shell, and a set of locking structures 8 are symmetrically arranged on the outer wall of the protruding portion to fix and lock it when the external connectors are inserted and connected.

[0041] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A connector assembly for an automotive differential, characterized in that, Includes an embedded part (2) assembled inside the housing cylinder (4), the embedded part (2) being connected to an external connector outside the cylinder via a tuning fork terminal (1), the tuning fork terminal (1) being built into an injection molded housing (3), the injection molded housing (3) penetrating and communicating between the inside and outside of the housing cylinder (4); The tuning fork terminal (1) includes a base (11) that mates with the inner wall of the injection-molded housing (3). A pin (12) for connecting the external connector is provided on one side of the base (11), and a tuning fork terminal (13) for connecting the embedded part (2) is provided on the other side of the base (11).

2. The connector assembly for an automotive differential according to claim 1, characterized in that, The embedded part (2) includes a base tube (21), which is separated by a partition plate (22) to form a terminal cavity inside the base tube (21), and at least one blade terminal (23) is provided in each terminal cavity. The blade terminal (23) is in contact with the tuning fork terminal (13) one by one, and the number of tuning fork terminals (13) corresponds to the number of pins (12) and they are connected accordingly.

3. A connector assembly for an automotive differential according to claim 2, characterized in that, The tuning fork terminal (13) is generally flat and includes a cantilever beam (132) and a contact portion. The cantilever beam (132) is connected to the bottom of the base (11) through a transition section (131). The contact portion is configured as a set of mirror-arranged clamping spring arms (133), and a set of clamping contacts (134) protruding from the clamping spring arms are provided. The clamping contacts (134) are opposite to each other and contact each other, forming a clamping cavity (135) between the two clamping spring arms to clamp and accommodate the blade terminal (23). The ends of the clamping arms (133) on both sides are respectively provided with guide front ends (136), and the guide front ends (136) are configured as outwardly extending pointed corners.

4. A connector assembly for an automotive differential according to claim 1, characterized in that, The injection molded housing (3) is generally sleeve-shaped, and an outer edge assembly plate (30) is provided extending outward on the lateral side of the injection molded housing (3). The outer edge assembly plate (30) is assembled and fixed on the outer wall of the housing cylinder (4) by fasteners (6) and bushings (7).

5. A connector assembly for an automotive differential according to claim 1, characterized in that, The injection-molded housing (3) is fitted with a sealing ring (5) through a sealing groove (300) on the outer side wall.

6. A connector assembly for an automotive differential according to claim 4, characterized in that, The portion of the injection-molded housing (3) protruding from the cylinder body (4) is configured as a hollow cylindrical shell, and a set of locking structures (8) are symmetrically arranged on the outer wall of the protruding portion to fix and lock it when the external connector is inserted and connected.

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