Guiding type high-power connector

Abstract

The utility model relates to the technical field of connectors, in particular to a guiding type high-power connector, which comprises a plastic shell and a contact assembly, the contact assembly is arranged in the plastic shell, a busbar is inserted on the contact assembly, an internal copper bar is inserted at the right part of the contact assembly, and the contact assembly comprises a stainless steel shell and a terminal. The stainless steel shell is sleeved on the terminal, the stainless steel shell is provided with a stainless steel elastic sheet corresponding to the terminal, the stainless steel shell is provided with a guide groove, and the guide groove protrudes out of the plastic surface. When the connector is used, the internal copper bar extends into the clamping opening of the terminal, the internal copper bar is fixed through the cooperative use of the screw and the riveting nut structure, so that the transmission of current is realized, when the connector is inserted into a busbar, the plastic shell has the functions of primary guiding and insulation protection, and the guiding groove further improves the guiding function; the busbar is finally guided by the guide groove on the stainless steel shell, so that the plastic shell is prevented from being damaged due to excessive deformation.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a guiding type high-power connector. Background Art

[0002] Currently, the battery module (PACK), energy storage converter (PCS) and bus in the energy storage cabinet are connected through a connector.

[0003] Existing connectors have tolerances in processing and assembly, and there must be position deviations between the connector and the busbar. Generally, the connector only relies on the plastic shell as a guide. When the PACK is inserted into the busbar, the plastic shell and the busbar may collide hard due to position deviation, and the plastic may deform excessively, causing damage to the connector. When the energy storage cabinet discharges, the stored electrical energy will be released in a short time, and the current will be very large. However, the general connector can only carry currents below 400A, which cannot meet the requirements of high-power discharge. Therefore, the utility model provides a guided high-power connector to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide a guiding high-power connector to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A guide type high-power connector comprises a plastic shell and a contact assembly, wherein the contact assembly is arranged in the plastic shell, a bus is inserted on the contact assembly, and an internal copper bus is inserted on the right part of the contact assembly, the contact assembly comprises a stainless steel shell and a terminal, the stainless steel shell is sleeved on the terminal, a stainless steel spring sheet is arranged on the stainless steel shell corresponding to the terminal, and a guide groove is arranged on the stainless steel shell, and the guide groove protrudes from the plastic surface.

[0007] As a further solution of the utility model, the internal copper busbar, the stainless steel shell and the terminal are symmetrically threaded with screws, the screws are threaded with riveted nuts, and the internal copper busbar, the stainless steel shell and the terminal are provided with through holes corresponding to the screws.

[0008] Specifically, the internal copper busbar is fixed by using a screw and a riveted nut structure in combination.

[0009] As a further solution of the present invention, the terminal is made of high-conductivity copper material with a multi-contact point structure.

[0010] As a further solution of the utility model, an insulating heat-resistant component is also provided on the plastic shell corresponding to the bus, and the insulating heat-resistant component includes a fixed block, a support plate, a telescopic rod, an insulating heat-resistant plate, an insulating heat-resistant block and a spring. Fixed blocks are symmetrically provided at the upper and lower ends of the plastic shell, and a support plate is provided at the other end of the fixed block. A number of telescopic rods are provided at one end of the two support plates close to each other, an insulating heat-resistant plate is provided at the other end of the telescopic rod, and an insulating heat-resistant block is provided at the left end of the insulating heat-resistant plate.

[0011] As a further solution of the utility model, a spring is sleeved on the telescopic rod, one end of the spring is fixedly connected to the support plate, and the other end of the spring is fixedly connected to the insulating heat-resistant plate.

[0012] Specifically, when the bus is inserted into the plastic shell, the bus drives the two insulating heat-resistant blocks and the insulating heat-resistant plate to move away from each other, and the insulating heat-resistant plate compresses the spring. The elastic potential energy of the spring facilitates driving the insulating heat-resistant plate and the insulating heat-resistant block to fit tightly against the bus. In the process of the bus entering the plastic shell, the insulating heat-resistant block can clean the impurities attached to the bus, and the insulating heat-resistant plate can clean the dust on the bus.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When the utility model is used, the internal copper busbar is inserted into the clamping opening of the terminal, and the internal copper busbar is fixed by the coordinated use of screws and riveted nut structures, thereby realizing the transmission of current. When the connector is inserted into the busbar, the plastic shell plays a primary guiding and insulating protection function, and the guide groove further improves the guiding function. The busbar is finally guided by the guide groove on the stainless steel shell to avoid damage to the plastic shell due to excessive deformation.

[0015] 2. When the utility model is used, when the bus is inserted into the plastic housing, the bus drives the two insulating heat-resistant blocks and the insulating heat-resistant plate to move away from each other, and the insulating heat-resistant plate compresses the spring. The elastic potential energy of the spring facilitates driving the insulating heat-resistant plate and the insulating heat-resistant block to fit tightly against the bus. In the process of the bus entering the plastic housing, the insulating heat-resistant block can clean the impurities attached to the bus, and at the same time, the insulating heat-resistant plate cleans the dust on the bus to prevent the impurities or dust attached to the bus from affecting the contact with the terminals.

[0016] 3. By setting a stainless steel spring on the outside of the terminal, the stainless steel spring clamps the terminal, which can obtain sufficient force and very low contact impedance, so that it can carry 700A current and have a plug-in and pull-out life of not less than 100 times. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the structure of a guided high-power connector.

[0018] Figure 2 The figure is a schematic diagram of the internal structure of a guided high-power connector.

[0019] Figure 3 The figure is a schematic diagram of the structure of a contact component in a guided high-power connector.

[0020] Figure 4 The figure is a schematic diagram of the structure of a stainless steel shell in a guided high-power connector.

[0021] Figure 5 The figure is a schematic diagram of the structure of a terminal in a guided high-power connector.

[0022] Figure 6 The figure is a schematic diagram of the structure of an insulating and heat-resistant component in a guided high-power connector.

[0023] Figure 7 A guided high-power connector Figure 6 Schematic diagram of the enlarged structure at point A in the middle.

[0024] In the figure: 1. Plastic shell; 2. Bus; 3. Internal copper busbar; 4. Screw; 5. Riveted nut; 6. Contact assembly; 601. Stainless steel shell; 6001. Stainless steel spring; 6002. Guide groove; 602. Terminal; 7. Insulating and heat-resistant assembly; 701. Fixing block; 702. Support plate; 703. Telescopic rod; 704. Insulating and heat-resistant plate; 705. Insulating and heat-resistant block; 706. Spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0026] In the present utility model, the word "exemplary" is used to mean "used as an example, illustration or description". Any embodiment described as "exemplary" in the present utility model is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any technician in the field to implement and use the present utility model. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present utility model can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present utility model with unnecessary details. Therefore, the present utility model is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present utility model.

[0027] Example

[0028] See also Figures 1 to 7 In an embodiment of the utility model, a guide type high-power connector includes a plastic shell 1 and a contact assembly 6, wherein the contact assembly 6 is arranged in the plastic shell 1, a bus bar 2 is inserted on the contact assembly 6, and an internal copper bus 3 is inserted on the right part of the contact assembly 6, the contact assembly 6 includes a stainless steel shell 601 and a terminal 602, the stainless steel shell 601 is sleeved on the terminal 602, a stainless steel spring 6001 is arranged on the stainless steel shell 601 corresponding to the terminal 602, and a guide groove 6002 is arranged on the stainless steel shell 601, and the guide groove 6002 protrudes from the plastic surface.

[0029] The internal copper busbar 3 , the stainless steel shell 601 and the terminal 602 are symmetrically threaded with screws 4 , the screws 4 are threaded with riveted nuts 5 , and through holes corresponding to the screws 4 are provided on the internal copper busbar 3 , the stainless steel shell 601 and the terminal 602 .

[0030] Specifically, the internal copper busbar 3 is fixed by using the screw 4 and the riveting nut 5 in cooperation with each other.

[0031] The terminal 602 is made of high-conductivity copper and has a multi-contact point structure.

[0032] Specifically, copper materials with high electrical conductivity have relatively low Young's modulus and yield strength, and their structure is prone to yield.

[0033] The plastic shell 1 is also provided with an insulating heat-resistant component 7 corresponding to the bus 2, and the insulating heat-resistant component 7 includes a fixed block 701, a support plate 702, a telescopic rod 703, an insulating heat-resistant plate 704, an insulating heat-resistant block 705 and a spring 706. The plastic shell 1 is symmetrically provided with fixed blocks 701 at the upper and lower ends, and a support plate 702 is provided at the other end of the fixed block 701. A plurality of telescopic rods 703 are provided at one end where the two support plates 702 are close to each other, and an insulating heat-resistant plate 704 is provided at the other end of the telescopic rod 703, and an insulating heat-resistant block 705 is provided at the left end of the insulating heat-resistant plate 704. A spring 706 is sleeved on the telescopic rod 703, and one end of the spring 706 is fixedly connected to the support plate 702, and the other end of the spring 706 is fixedly connected to the insulating heat-resistant plate 704.

[0034] Specifically, when the bus 2 is inserted into the plastic shell 1, the bus 2 drives the two insulating heat-resistant blocks 705 and the insulating heat-resistant plate 704 to move away from each other, and the insulating heat-resistant plate 704 compresses the spring 706. The elastic potential energy of the spring 706 facilitates driving the insulating heat-resistant plate 704 and the insulating heat-resistant block 705 to fit tightly against the bus 2. In the process of the bus 2 entering the plastic shell 1, the insulating heat-resistant block 705 can clean the impurities attached to the bus 2, and the insulating heat-resistant plate 704 can clean the dust on the bus 2.

[0035] The working principle of the utility model is:

[0036] When the utility model is used, the internal copper busbar 3 is inserted into the clamping opening of the terminal 602, and the internal copper busbar 3 is fixed by the combination of the screw 4 and the riveting nut 5 structure, so as to realize the transmission of current. When the connector is inserted into the busbar 2, the plastic shell 1 plays the primary guiding and insulation protection functions, and the guide groove 6002 further improves the guiding function. The busbar 2 is finally guided by the guide groove 6002 on the stainless steel shell 601 to avoid excessive deformation and damage of the plastic shell 1. By arranging the stainless steel spring piece 6001 on the outer side of the terminal 602, the stainless steel spring piece 6001 clamps the terminal 602, which can obtain sufficient strength and very low contact impedance, so that It can carry 700A current and has a plug-in and pull-out life of not less than 100 times. When the bus 2 is inserted into the plastic housing 1, the bus 2 drives the two insulating heat-resistant blocks 705 and the insulating heat-resistant plate 704 to move away from each other. The insulating heat-resistant plate 704 compresses the spring 706. The elastic potential energy of the spring 706 facilitates driving the insulating heat-resistant plate 704 and the insulating heat-resistant block 705 to fit tightly against the bus 2. In the process of the bus 2 entering the plastic housing 1, the insulating heat-resistant block 705 can clean the impurities attached to the bus 2, and at the same time, the insulating heat-resistant plate 704 cleans the dust on the bus 2 to prevent the impurities or dust attached to the bus 2 from affecting the contact with the terminal 602.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A guided high-power connector, comprising a plastic housing (1) and a contact assembly (6), characterized in that: A contact assembly (6) is provided in the plastic housing (1), a busbar (2) is inserted into the contact assembly (6), and an internal copper busbar (3) is inserted into the right part of the contact assembly (6), the contact assembly (6) comprises a stainless steel housing (601) and a terminal (602), the stainless steel housing (601) is sleeved on the terminal (602), a stainless steel spring sheet (6001) is provided on the stainless steel housing (601) corresponding to the terminal (602), and a guide groove (6002) is provided on the stainless steel housing (601), the guide groove (6002) protruding from the plastic surface.

2. A guided high-power connector according to claim 1, characterized in that: The internal copper busbar (3), the stainless steel housing (601) and the terminal (602) are symmetrically threadedly connected with screws (4), the screws (4) are threadedly connected with riveted nuts (5), and through holes corresponding to the screws (4) are provided on the internal copper busbar (3), the stainless steel housing (601) and the terminal (602).

3. A guided high-power connector according to claim 1, characterized in that: The terminal (602) is made of high-conductivity copper and has a multi-contact point structure.

4. A guided high-power connector according to claim 1, characterized in that: The plastic housing (1) is further provided with an insulating heat-resistant component (7) corresponding to the busbar (2), and the insulating heat-resistant component (7) comprises a fixed block (701), a support plate (702), a telescopic rod (703), an insulating heat-resistant plate (704), an insulating heat-resistant block (705) and a spring (706). The upper and lower ends of the plastic housing (1) are symmetrically provided with fixed blocks (701) in front and back, the other end of the fixed block (701) is provided with a support plate (702), a plurality of telescopic rods (703) are provided at one end of the two support plates (702) close to each other, the other end of the telescopic rod (703) is provided with an insulating heat-resistant plate (704), and the left end of the insulating heat-resistant plate (704) is provided with an insulating heat-resistant block (705).

5. A guided high-power connector according to claim 4, characterized in that: The telescopic rod (703) is sleeved with a spring (706), one end of the spring (706) is fixedly connected to the support plate (702), and the other end of the spring (706) is fixedly connected to the insulating heat-resistant plate (704).

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