High-current electric motorcycle connector

Abstract

The utility model discloses a large-current electric motorcycle connector, which comprises a male end connector and a female end connector, and is characterized in that the male end connector is formed by splicing a male end shell and a male end positioning piece through four pairs of first bayonet buckles which are distributed at intervals of 90 degrees; the male end shell is provided with a chute for guiding the first bayonet buckle at the inner edge of the splicing edge of the male end shell and the male end positioning piece, a partition rib is formed between the chute and the first bayonet buckle, and the male end shell is symmetrically provided with a pair of alignment slots at the two sides of the chute. Through the above mode, the large-current electric friction connector provided by the utility model replaces a connector manufactured by a traditional rubber coating technology with a split structure assembly at least comprising the male end housing, the male end positioning member and the tail cover, and absorbs the damage influence of external stress on a cable harness through the tolerance cooperation among the bayonet, the buckle, the partition rib and the counterpoint slot. Therefore, the product yield is effectively improved, the service life is greatly prolonged, and the production cost is remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the field of electric motor connectors, in particular to a large current electric motor connector. Background Art

[0002] At present, the popularity of electric motorcycles in the market is increasing and there is a trend of gradually replacing traditional fuel motorcycles. The power connector of electric motorcycles is the core power and signal transmission component of electric motorcycles. According to market research, the one-piece molding rubber coating production process used in the existing technology has a low process yield and poor reliability. The rubber coating process will cause the cable nodes to become loose or even have poor contact as they age, which not only has high production costs, but also has a short service life and is difficult to repair in the later stage.

[0003] Traditional electric motorcycle male and female connectors produced based on the above-mentioned rubber encapsulation process generally adopt a non-locking plug-in method. However, market research has found that other push-pull lock structures all have imprecise design defects, and the traction mechanism will experience structural fatigue failure after one to two years.

[0004] In addition, the electric motorcycle connectors on the market generally have the following problems that need to be solved:

[0005] 1. The power connector and signal connector are split structures, separated and occupy space;

[0006] 2. The power connector and signal connector are integrated, but the number of signal pins is small and cannot meet the needs of signal expansion;

[0007] 3. Most of the currents are between 70-100A, which cannot meet the discharge requirements of high-power electric motorcycles. Utility Model Content

[0008] The main technical problem solved by the utility model is to provide a high-current electric connector, which replaces the connector made by the traditional rubber coating process with a split structural component including at least a male end shell, a male end positioning piece and a tail cover, and absorbs the destructive effects of external stress on the cable harness through the tolerance coordination between the bayonet buckle, the partition rib and the alignment slot, thereby effectively improving the product yield, greatly extending the service life and significantly reducing the production cost.

[0009] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a high-current electric motor connector, including a male connector and a female connector, the male connector is composed of a male shell and a male positioning piece spliced ​​together by four pairs of first bayonet buckles distributed at ninety-degree intervals, the male shell is provided with an oblique groove guiding the first bayonet buckle on the inner edge of the splicing edge with the male positioning piece, a partition rib is formed between the oblique groove and the first bayonet buckle, the male shell is symmetrically provided with a pair of alignment slots on both sides of the oblique groove, the male positioning piece is provided with a pin matching the alignment slot on the splicing edge with the male shell, the front of the female connector is provided with a female positioning piece docking with the male positioning piece, the male positioning piece and the female positioning piece are respectively provided with a pair of mutually matching male and female mold cavities, and a number of mutually matching terminal connectors are provided in the male and female mold cavities.

[0010] In a preferred embodiment of the utility model, the terminal connector includes a group of positive and negative torsion spring terminals and a group of positive and negative poles, the positive and negative poles are composed of front end pins and rear end pole seats, the end face of the rear end pole seat is coaxially provided with a threaded hole, the threaded hole is threadedly locked with a cold-pressed terminal, and the cold-pressed terminal is connected to a cable harness.

[0011] In a preferred embodiment of the utility model, a wiring harness opening is provided at the bottom of the male end shell, and a step is provided on the outer peripheral surface of the wiring harness opening. The step is matched with a tail cover, and the plug-in interface of the tail cover and the step is provided with a pair of second bayonet buckles that cooperate with each other.

[0012] In a preferred embodiment of the utility model, a harness hole is provided at the bottom of the tail cover, a cable harness is inserted into the harness hole, the tail cover is hollow and filled with a sealing plug, the sealing plug has a hole in the center and is interference fit with the cable harness, a plurality of water-isolating rings parallel to each other are provided on the outer peripheral surface of the sealing plug, and the water-isolating rings are interference fit on the inner wall of the tail cover.

[0013] In a preferred embodiment of the utility model, the tail cover is provided with a plurality of stress line holes on the joint surface with the male end housing, and the stress line holes are symmetrically arranged on both sides of the second bayonet buckle.

[0014] In a preferred embodiment of the utility model, a raised partition is provided on the top of the male end shell, a raised ring is provided in the center of the raised partition, a cylinder is provided at the center of the raised ring, the raised partition is symmetrically provided with axial holes on both sides of the cylinder, a rotating shaft is provided in the axial hole, a push-type lock is inserted on the rotating shaft, a spring inserted in the cylinder and topped with the push-type lock is provided on the inner periphery of the raised ring, a hook is provided at the front end of the push-type lock, and a buckle matching the hook is provided on the top of the female end positioning piece.

[0015] In a preferred embodiment of the utility model, a circle of panels aligned with the male end housing are provided at the edge of the male end positioning member, and waterproof rings are installed on the front and back of the panel. The waterproof rings are respectively crimped between the male end positioning member and the male end housing, and between the male end positioning member and the female end positioning member.

[0016] The beneficial effect of the utility model is that the utility model provides a high-current electric connector, which replaces the connector made by the traditional rubber coating process with a split structural component that at least includes a male end shell, a male end positioning piece and a tail cover, and absorbs the destructive effects of external stress on the cable harness through the tolerance coordination between the bayonet buckle, the partition rib and the alignment slot, thereby effectively improving the product yield, greatly extending the service life and significantly reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0018] Figure 1 This is the overall structural diagram of a high-current electric motor connector of the utility model;

[0019] Figure 2 This is a structural diagram of the male end housing of a high-current electric motor connector of the utility model;

[0020] Figure 3 This is a diagram of the oblique slot structure of a large current electric motor connector of the utility model.

[0021] Figure 4 This is a pin structure diagram of a high-current electric motor connector of the utility model;

[0022] Figure 5 This is a structural diagram of the positive and negative poles of a large current electric motor connector of the utility model;

[0023] Figure 6 This is a rear end pole seat structure diagram of a large current electric motor connector of the utility model

[0024] Figure 7 This is a structural diagram of a tail cover of a high-current electric motor connector of the utility model;

[0025] Figure 8 This is a push-type lock structure diagram of a large current electric motor connector of the utility model

[0026] Fig. 9The utility model discloses a waterproof ring structure diagram of a large current electric motor connector. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1-9 As shown, the embodiment of the utility model includes:

[0029] A high-current electric motor connector comprises a male connector 1 and a female connector 2, wherein the male connector 1 is composed of a male housing 3 and a male positioning member 4 (D-shaped) spliced ​​together by four pairs of first bayonet buckles 5 distributed at ninety-degree intervals, the male housing 3 is provided with an oblique groove 6 guiding the first bayonet buckle 5 at the inner edge of the splicing edge with the male positioning member 4, a partition rib 7 is formed between the oblique groove 6 and the first bayonet buckle 5, the male housing 3 is symmetrically provided with a pair of alignment slots 8 on both sides of the oblique groove 6, the male positioning member 4 is provided with a pin 9 matching the alignment slot 8 at the splicing edge with the male housing 3, the female connector 2 is provided with a female positioning member 10 docking with the male positioning member 4 on the front side, the male positioning member 4 and the female positioning member 10 are respectively provided with a pair of mutually matching male and female mold cavities 11, and each of the male and female mold cavities 11 is provided with a plurality of mutually matching terminal connectors 12.

[0030] Among them, the terminal connector 12 includes a group of positive and negative torsion spring terminals 13 and a group of positive and negative poles 14, the positive and negative poles 14 are composed of a front end pin 15 and a rear end pole seat 16, the end face of the rear end pole seat 16 is coaxially provided with a threaded hole 17, and a cold-pressed terminal 18 is threadedly locked at the threaded hole 17, and the cold-pressed terminal 18 is connected to a cable harness 19.

[0031] Furthermore, a wiring harness opening 30 is provided at the bottom of the male end shell 3, and a step 31 is provided on the outer peripheral surface of the wiring harness opening 30. The step 31 is matched with a tail cover 32, and the plug-in interface between the tail cover 32 and the step 31 is provided with a pair of second bayonet buckles 33 that are mutually engaged.

[0032] Furthermore, a harness hole 34 is opened at the bottom of the tail cover 32, and a cable harness 19 is inserted into the harness hole 34. The tail cover 32 is hollow and filled with a sealing plug 35. The sealing plug 35 has a central opening and is interference fit with the cable harness 19. The outer peripheral surface of the sealing plug 35 is provided with a plurality of water-isolating rings 36 distributed parallel to each other, and the water-isolating rings 36 are interference fit on the inner wall of the tail cover 32.

[0033] Furthermore, the tail cover 32 is provided with a plurality of stress line holes 37 on the joint surface with the male end housing 3 , and the stress line holes 37 are symmetrically arranged on both sides of the second bayonet buckle 33 .

[0034] Furthermore, a raised fence 38 is provided on the top of the male end shell 3, a raised ring 39 is centrally provided in the raised fence 38, a cylinder 40 is provided at the center of the raised ring 39, the raised fence 38 is symmetrically provided with axial holes 41 on both sides of the cylinder 40, a rotating shaft 42 is mounted in the axial hole 41, a push-type lock 43 is inserted on the rotating shaft 42, a spring 44 is inserted in the cylinder 40 and topped with the push-type lock 43 is provided on the inner periphery of the raised ring 39, a hook 45 is provided at the front end of the push-type lock 43, and a buckle 46 matching the hook 45 is provided on the top of the female end positioning member 10.

[0035] Furthermore, a circle of panels 47 aligned with the male end housing 3 is provided on the edge of the male end positioning member 4, and waterproof rings 48 are installed on the front and back of the panel 47 of the male end positioning member 4, and the waterproof rings 48 are respectively crimped between the male end positioning member 4 and the male end housing 3, and between the male end positioning member 4 and the female end positioning member 10.

[0036] When the male end positioning member 4 is plugged into the female end positioning member 10, the buckle 46 engages with the hook 45 to prevent the two from falling off. Since the push-type lock buckle 43 is unlocked by the spring 44, it has a long service life due to its simple structure. The principle of its pressing mechanism is simple and easy to maintain and manage.

[0037] The male housing 3 is hollow and has an L-shaped hollow cavity. The male housing 3 and the male positioning member 4 are spliced ​​by a bayonet buckle 46. At the same time, structures such as an inclined groove 6, a partition rib 7, and a wire hole are also designed, which can absorb external stress, thereby protecting the connection node between the terminal and the cable harness 19. However, the traditional rubber-coated handle does not have the ability to absorb stress. As the rubber-coated material ages and deforms, the contacts or docking nodes embedded inside will be misaligned, the signal circuit is prone to disconnection, and the power supply circuit is prone to poor contact.

[0038] This product is a compatible high-current power and signal connector, which solves the problems of high cost and space limitation of split connectors. At the same time, the male connector 1 is an assembled structure, which improves the structural problems and high cost and low efficiency disadvantages of the traditional rubber coating process. The locking structure when the male and female are plugged into each other improves the reliability and service life of the product.

[0039] In summary, the utility model provides a high-current electric connector, which replaces the connector made by the traditional rubber coating process with a split structural component that includes at least a male end shell 3, a male end positioning piece 4 and a tail cover 32, and absorbs the destructive effects of external stress on the cable harness 19 through the tolerance coordination between the bayonet buckle 46, the partition rib 7, and the alignment slot 8, thereby effectively improving the product yield, greatly extending the service life and significantly reducing the production cost.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high current electric connector, characterized in that: It includes a male connector and a female connector, the male connector is composed of a male shell and a male positioning piece connected by four pairs of first bayonet buckles distributed at ninety degree intervals, the male shell is provided with an oblique groove guiding the first bayonet buckle on the inner edge of the splicing edge with the male positioning piece, a partition rib is formed between the oblique groove and the first bayonet buckle, the male shell is symmetrically provided with a pair of alignment slots on both sides of the oblique groove, the male positioning piece is provided with a pin matching the alignment slot on the splicing edge with the male shell, a female positioning piece docking with the male positioning piece is provided on the front of the female connector, the male positioning piece and the female positioning piece are respectively provided with a pair of mutually matching male and female cavities, and a number of mutually matching terminal connectors are provided in the male and female cavities.

2. The high current electric connector according to claim 1, characterized in that: The terminal connector includes a group of positive and negative torsion spring terminals and a group of positive and negative poles. The positive and negative poles are composed of front-end pins and rear-end pole seats. The end face of the rear-end pole seat is coaxially provided with a threaded hole. A cold-pressed terminal is threadedly locked at the threaded hole, and the cold-pressed terminal is connected to a cable harness.

3. The high current electric connector according to claim 1, characterized in that: A wiring harness opening is provided at the bottom of the male end shell, and a step is provided on the outer peripheral surface of the wiring harness opening. The step is matched with a tail cover, and the plug-in interface of the tail cover and the step is provided with a pair of second bayonet buckles that cooperate with each other.

4. The high current electric connector according to claim 3, characterized in that: A harness hole is provided at the bottom of the tail cover, and a cable harness is inserted into the harness hole. The tail cover is hollow and filled with a sealing plug. The sealing plug has a hole in the center and is interference fit with the cable harness. A plurality of water-isolating rings distributed parallel to each other are provided on the outer peripheral surface of the sealing plug, and the water-isolating rings are interference fit on the inner wall of the tail cover.

5. The high current electric connector according to claim 3, characterized in that: The tail cover is provided with a plurality of stress line holes on the joint surface with the male end housing, and the stress line holes are symmetrically arranged on both sides of the second bayonet buckle.

6. The high current electric connector according to claim 1, characterized in that: A raised partition is provided on the top of the male end shell, a raised ring is provided in the center of the raised partition, a cylinder is provided at the center of the raised ring, the raised partition is symmetrically provided with axial holes on both sides of the cylinder, a rotating shaft is provided in the axial hole, a push-type lock is inserted on the rotating shaft, a spring inserted in the cylinder and topped with the push-type lock is provided on the inner periphery of the raised ring, a hook is provided at the front end of the push-type lock, and a buckle matching the hook is provided on the top of the female end positioning piece.

7. The high current electric connector according to claim 1, characterized in that: The edge of the male end positioning piece is provided with a circle of panels aligned with the male end housing, and the male end positioning piece is installed with waterproof rings in front and behind the panel, and the waterproof rings are respectively crimped between the male end positioning piece and the male end housing, and between the male end positioning piece and the female end positioning piece.

Images