High voltage connector and electromechanical device

Abstract

The invention relates to a high voltage connector and an electromechanical device. The high-voltage connector comprises at least two power plug-ins, each power plug-in is used for conducting electricity and is provided with a first power terminal and a second power terminal which are opposite to each other and connected with each other, and the first power terminal is used for being electrically connected with a corresponding power interface on a PCB in a crimping mode. The second power terminal is used for being electrically connected with a corresponding power interface on a connection side to be connected with the high-voltage connector; each signal plug-in unit is used for transmitting signals and is provided with a first signal terminal and a second signal terminal which are opposite to each other and connected with each other, the first signal terminal is used for being electrically connected with a corresponding signal interface on the PCB in a compression joint mode, and the second signal terminal is used for being electrically connected with a corresponding signal interface on the connecting side. The signal includes a high voltage interlock signal. The high-voltage connector is connected with the PCB in a crimping mode, can be flexibly matched with various connection side terminals, and can be widely applied to various electromechanical devices.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connection, in particular to a high voltage connector and an electromechanical device. Background Art

[0002] Printed Circuit Board (PCB) is widely used in various electromechanical equipment as a carrier for electrical interconnection of electronic components. At present, for the connection between high-voltage connectors and PCB boards, the existing technology generally adopts a wire harness cable (with a cable sheet or a female / male connector), and the high-voltage connector and such wire harness cable are used to transmit power and high-voltage interlock (HVIL) signals between the PCB board and the device on the connection side. However, the present application finds that these existing methods have shortcomings, such as the space occupied by the wire harness cable, the inflexible matching of the connection terminals of the high-voltage connector, the low operating efficiency, and the poor product quality and working performance. Summary of the invention

[0003] In view of this, the present invention provides a high-voltage connector and an electromechanical device, so as to solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art, or provide an alternative technical solution for the prior art.

[0004] According to one aspect of the present invention, firstly, a high voltage connector is provided, comprising:

[0005] At least two power plug-ins, each of which is used for conducting electricity and has a first power terminal and a second power terminal that are opposite to and connected to each other, the first power terminal being used for crimping and electrically connecting to a corresponding power interface on a PCB board, and the second power terminal being used for electrically connecting to a corresponding power interface on a connection side to which the high-voltage connector is to be connected; and

[0006] At least two signal plug-ins, each of which is used to transmit signals and has a first signal terminal and a second signal terminal that are opposite to and connected to each other, the first signal terminal is used to be crimped and electrically connected to a corresponding signal interface on the PCB board, and the second signal terminal is used to be electrically connected to a corresponding signal interface on the connection side, and the signal includes a high-voltage interlock signal.

[0007] In the high-voltage connector according to the present invention, optionally, the high-voltage connector further includes an outer shell and an inner shell, at least a portion of the inner shell is inserted into the outer shell, the at least two power plug-ins and the at least two signal plug-ins are arranged in the inner shell along the axial direction of the inner shell, and the first power terminal and the first signal terminal extend out of the inner shell and the outer shell, and the second power terminal and the second signal terminal extend out of the inner shell but do not extend out of the outer shell.

[0008] In the high voltage connector according to the present invention, optionally, the high voltage connector further comprises:

[0009] a connecting member, which is detachably mounted on the inner shell and is provided with through holes for the first power terminal and the first signal terminal to pass through respectively; and / or

[0010] a seal detachably mounted on the housing for sealing; and / or

[0011] The isolating portion is provided on the inner housing and arranged between the at least two power plug-ins for isolating adjacent power plug-ins.

[0012] In the high-voltage connector according to the present invention, optionally, the connector includes a first part and a second part connected to each other, the first part is configured in a plate shape and the through hole is arranged thereon, the second part extends along the axial direction of the inner shell and has a coupling portion, the connector is arranged to have a first position and a second position relative to the inner shell, wherein the connector is in the first position when the coupling portion is engaged with the first matching portion on the inner shell, and is in the second position when the coupling portion is engaged with the second matching portion on the inner shell, and when the first power terminal is crimped and electrically connected to the corresponding power interface on the PCB board, and the first signal terminal is crimped and electrically connected to the corresponding signal interface on the PCB board, the connector enters the second position from the first position; and / or

[0013] The isolating portion is configured as a protrusion extending from the body of the inner shell toward a direction in which the first power terminal is crimped and electrically connected to the PCB board; and / or

[0014] The connecting piece is made of insulating plastic, and the sealing piece is made of rubber material.

[0015] In the high-voltage connector according to the present invention, optionally, the engaging portion is configured as a hook, and the first matching portion and the second matching portion are respectively configured as a first groove and a second groove located on the inner shell, and the first groove is closer to the first power terminal relative to the second groove along the axial direction of the inner shell.

[0016] In the high voltage connector according to the present invention, optionally, the first power terminal and / or the first signal terminal is configured to contact a matching structure provided on an inner wall of the inner housing to increase a retaining force.

[0017] In the high-voltage connector according to the present invention, optionally, the first power terminal and / or the first signal terminal are configured to have a barb structure, and the matching structure includes a first step, a second step and a third step arranged in sequence along a direction from the second power terminal toward the first power terminal, the first step is used to position the corresponding first power terminal or the first signal terminal, the second step is used to form an interference fit with the corresponding first power terminal or the first signal terminal, and the third step is used to form a clearance fit with the corresponding first power terminal or the first signal terminal.

[0018] In the high-voltage connector according to the present invention, optionally, the outer shell is provided with a mounting portion for mounting the high-voltage connector, and / or the outer shell and the inner shell are made of insulating plastic.

[0019] In the high-voltage connector according to the present invention, optionally, the first power terminal and the second power terminal are connected by resistance welding, and / or the first signal terminal and the second signal terminal are connected by resistance welding.

[0020] In addition, according to another aspect of the present invention, there is further provided an electromechanical device, comprising:

[0021] PCB board; and

[0022] One or more high-voltage connectors as described in any of the above items, wherein the high-voltage connector is connected to the PCB board and the corresponding interface on the connection side through the at least two power plug-ins for conduction, and is connected to the PCB board and the corresponding interface on the connection side through the at least two signal plug-ins for transmitting signals.

[0023] The high-voltage connector of the present invention has many advantages such as compact structure, convenient, accurate and efficient crimping operation, easy production and low cost. In particular, it can be flexibly matched with various terminal types of various connection side devices. Therefore, it is very practical and can be widely used in various electromechanical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The figure is a schematic exploded view of the three-dimensional structure of a high-voltage connector according to an embodiment of the present invention.

[0025] Figure 2 yes Figure 1 The illustrated embodiment is a schematic diagram of the three-dimensional structure of the high-voltage connector after assembly.

[0026] Figure 3 yes Figure 1 The illustrated embodiment of the high voltage connector is a schematic top view of the structure after assembly.

[0027] Figure 4 yes Figure 1 The illustrated embodiment of the high voltage connector is a schematic side cross-sectional view of the structure after assembly.

[0028] Figure 5 and Figure 6 They are Figure 4 Schematic diagram of the partial enlarged structure of parts A and B in the middle.

[0029] Figure 7 yes Figure 1 The three-dimensional structure diagram of a power plug-in in the high-voltage connector embodiment is shown.

[0030] Figure 8 yes Figure 1 A schematic diagram of the three-dimensional structure of a signal plug-in in the high-voltage connector embodiment is shown. DETAILED DESCRIPTION

[0031] exist Figures 1 to 8 A specific embodiment of the high-voltage connector of the present invention is given in the text, which shows the basic structure, composition, installation and use, etc. The present invention will be described below with the help of this embodiment. It should be noted that for the high-voltage connectors appearing in various places in this article, its operating voltage can be designed differently according to different application scenarios, for example, it can be not less than 100V, such as 400V, 500V, 800V or any other voltage value that meets the actual application requirements.

[0032] Please also refer to Figure 1 , Figure 2 , Figure 3 and Figure 4In this given embodiment, the high voltage connector 100 is provided with two power plug-ins 10 and two signal plug-ins 20, which can be made of conductive materials such as copper, aluminum alloy, etc. The power plug-in 10 is used to connect the PCB board and the connection side to be connected via the high voltage connector (for example, power electronic devices on the vehicle, such as battery packs, high voltage distribution boxes, on-board chargers, etc.) so as to conduct electricity (i.e., transmit electrical energy / power) between them, and the signal plug-in 20 is used to connect the PCB board and the above connection side so as to transmit signals between the two, such signals may include but are not limited to, for example, HVIL signals, other working signals, etc. It should be understood that although in the illustrated embodiment, the number of power plug-ins 10 and signal plug-ins 20 are configured to be two to form a circuit loop, the present invention allows them to be configured to be three, four or more in some application cases, and such configuration may be based on considerations such as work performance requirements and safety redundancy needs.

[0033] Each power plug-in 10 may have two parts, namely, a first power terminal 11 for matching and connecting with a PCB board and a second power terminal 12 for matching and connecting with a connection side. The two parts may be connected together by any feasible connection method such as resistance welding to form a power plug-in as a whole. Figure 1 and Figure 7 In the drawings, the reference numeral 13 is used to schematically indicate the intermediate connection portion between the first power terminal 11 and the second power terminal 12. The above method allows the high-voltage connector to be used in conjunction with many types of connection side interfaces very flexibly. It is only necessary to replace the corresponding second power terminal 12 and connect it to the first power terminal 11. Not only is the process quite convenient, but it can also greatly expand the application scope of the high-voltage connector.

[0034] The first power terminal 11 of the power plug-in 10 can be electrically connected to the corresponding power interface arranged on the PCB board by means of crimping. Figure 7The end structure 111 of the first power terminal 11 that can be used for crimping electrical connection is schematically shown in a demonstration manner. Different from the existing high-voltage connector products that generally use wire harness cables, the use of crimping electrical connection in the power plug-in 10 of the present high-voltage connector can save more space for the connection arrangement of the PCB board and the high-voltage connector on the one hand, promote a more compact arrangement, and on the other hand, it is also conducive to improving efficiency, making the production and installation process simpler, and improving product quality. In addition, since no additional cables and connectors such as cable sheets are required in the present high-voltage connector, the cost can be effectively reduced. It should be noted that the technical term "press-fit" appearing in various places in this article refers to a connection technology that presses the crimping terminal (generally having a bulging portion with normal elasticity) into the corresponding crimping hole (having a conductive inner wall) on the PCB board to achieve rapid assembly, which has the advantages of being easy to automate and highly efficient.

[0035] The above describes the general structure of the power plug-in 10, and the signal plug-in 20 may have some structural features that are the same or similar thereto. For example, each signal plug-in 20 may have a first signal terminal 21 for matching with a PCB board and a second signal terminal 22 for matching with a connection side, and the two may be connected together by any feasible connection method such as resistance welding to form a signal plug-in as a whole. Figure 1 and Figure 8 In the drawings, the reference numeral 23 is used to schematically indicate the intermediate connection portion between the first signal terminal 21 and the second signal terminal 22. In addition, the drawings also schematically show the end structure 211 provided on the first signal terminal 21, which can be used to perform crimping electrical connection with the corresponding signal interface on the PCB board. It should be understood that the signal plug-in 20 adopts the above structure and crimping connection method, and can also obtain the positive, significant and beneficial technical effects mentioned in the above discussion of the power plug-in 10.

[0036] In specific use, the power plug-in 10 and the signal plug-in 20 can be arranged in the housing of the high voltage connector 100. Figure 1 , Figure 2 and Figure 4As shown in the accompanying drawings, as an example, the high-voltage connector 100 can be configured with an outer shell 30 and an inner shell 40, and a part or all of the inner shell 40 can be set in the outer shell 30, and then the power plug-in 10 and the signal plug-in 20 can be installed and arranged in the inner shell 40 along the axis L direction of the inner shell 40, so that the first power terminal 11 of the power plug-in 10 and the first signal terminal 21 of the signal plug-in 20 both extend out of the inner shell 40 and the outer shell 30, and the second power terminal 12 and the second signal terminal 22 both extend out of the inner shell 40 but not out of the outer shell 30, that is, at this time, under the internal protection of the outer shell 30, the second power terminal 12 and the second signal terminal 22 are respectively used to complete the corresponding conductive connection and signal connection with the connection side interface of the high-voltage connector 100, which will help to ensure and improve the safety performance of the system.

[0037] The outer shell 30 and the inner shell 40 can be made of one or more suitable materials such as insulating plastics, for example, the outer shell 30 and the inner shell 40 can be made of commercially available PA66-GF30 and PBT-GF30 materials, respectively. Generally, the outer shell 30 and the inner shell 40 can be constructed into a substantially cylindrical shape, etc. Of course, the present invention allows them to be constructed into any suitable shape, size, etc. according to application requirements. For example, the inner shell 40 can have a plurality of internal channel structures to allow the power plug-in 10 and the signal plug-in 20 to be arranged in place in the high-voltage connector by means of corresponding channel structures.

[0038] In addition, one or more components or features may be configured on the outer shell 30 and the inner shell 40 as needed. For example, the seal 60 may be optionally detachably mounted on the outer shell 30 to provide a waterproof, dustproof and other sealing effect. The seal 60 may be made of a suitable material such as a rubber material (such as AEM). For another example, a mounting portion 31 may be provided on the outer shell 30 to facilitate the actual use of the high-voltage connector. For example, in the given embodiment, a mounting hole structure is exemplarily provided on both sides of the flange of the outer shell 30, so that the high-voltage connector can be fixed in place at a suitable position using connectors such as bolts and screws. For another example, refer to Figure 1 As shown in the figures, the isolation portion 43 can be provided at any suitable position on the inner shell 40, for example, it can be optionally configured as a convex shape, and the convexity extends from the body of the inner shell 40 toward the direction of crimping electrical connection between the power plug-in 10 and the PCB board, so as to isolate adjacent power plug-ins 10 from each other, thereby better ensuring that the high-voltage connector has reliable insulation performance when transmitting electric energy.

[0039] Continue to refer Figure 1 , Figure 2 , Figure 4 and Figure 6The figure shows a connector 50 as an optional configuration in the high voltage connector 100, which can facilitate the crimping electrical connection between the high voltage connector 100 and the PCB board. Specifically, the connector 50 can be configured to have a first portion 51 and a second portion 52, and a corresponding through hole 53 can be provided on the first portion 51 to allow the first power terminal 11 and the first signal terminal 21 to be connected as shown in the figure. Figure 2 and Figure 4 As shown, the through holes 53 matched therewith are passed through, that is, through these through holes 53 of the connector 50, the first power terminal 11 of the power plug-in 10 and the first signal terminal 21 of the signal plug-in 20 can be kept in place before crimping. In particular, the position tolerance of the first power terminal 11 and the first signal terminal 21 when crimping and electrically connecting with the PCB board can be guaranteed by the position of these through holes 53 on the connector 50, so that the matching connection operation between the high-voltage connector and the PCB board is quite convenient, accurate, reliable and efficient. By configuring the connector 50, when using the high-voltage connector, it can be promoted to meet the high requirements of the crimping electrical connection used for quick assembly connection in terms of position accuracy and control of the pressing force, so that the characteristics of the crimping electrical connection such as automatic assembly and high working efficiency can be fully utilized, which is conducive to realizing large-scale production, improving product quality and reducing costs.

[0040] As an exemplary explanation, the first portion 51 of the connector 50 may be configured to be plate-shaped, and the second portion 52 may be configured to extend along the axis L of the inner shell 40 and have a joint portion 54, so that the connector 50 may be detachably mounted on the inner shell 40 through the latter. In order to facilitate the crimping electrical connection operation of the high-voltage connector 100 to the PCB board, the connector 50 may be arranged to have a first position and a second position relative to the inner shell 40, for example, when the joint portion 54 is engaged with the first matching portion 41 or the second matching portion 42 on the inner shell 40, the connector 50 is placed in the first position or the second position described above. For example, the engaging portion 54 can be optionally configured as a hook, and the first matching portion 41 and the second matching portion 42 can be configured as a first groove and a second groove located on the inner shell 40, respectively. By engaging the engaging portion 54 with the first groove or the second groove, the connector 50 is placed in the first position or the second position. For example, when the high-voltage connector 100 is crimped and electrically connected to the PCB board, that is, the first power terminal 11 of the power plug-in 10 and the first signal terminal 21 of the signal plug-in 20 are crimped into their respective corresponding interfaces on the PCB board, the above operation will force the connector 50 to move from the original first position (corresponding to the first groove) to the second position after installation (corresponding to the second groove). At this time, the first power terminal 11 and the first signal terminal 21 will protrude relative to the connector 50 to expose a longer size and engage with their respective corresponding interfaces on the PCB board, thereby completing the crimping and electrical connection operation of the high-voltage connector 100 to the PCB board. Then, the power plug-in 10 can be used to transmit electrical energy / power, and the signal plug-in 20 can be used to transmit signals required for applications such as HVIL.

[0041] In one or some embodiments, the components of the high-voltage connector such as the power plug-in 10 and the signal plug-in 20 may be structurally optimized. For example, as an optional situation, one or more structural features may be provided on the first power terminal 11 of the power plug-in 10 and / or the first signal terminal 21 of the signal plug-in 20 to increase the retention force when they are arranged in the high-voltage connector 100. For example, Figure 4 , Figure 5 , Figure 7 and Figure 8As shown in FIG. 1 , a barb structure 112 can be provided on the first power terminal 11, a barb structure 212 can be provided on the first signal terminal 21, and a matching structure 44 adapted to such a barb structure can be provided on the inner wall of the inner shell 40 of the high-voltage connector 100 so as to increase the holding force between them when they are in contact. For example, the matching structure 44 can be constructed in a step form, for example, it can have a plurality of steps in sequence along the direction from the second power terminal 12 toward the first power terminal 11, such as step 441, step 442 and step 443, wherein step 441 can be used to position the first power terminal 11 (or the first signal terminal 21), step 442 can be used to form an interference fit with the first power terminal 11 (or the first signal terminal 21), and step 443 can be used to form a clearance fit with the first power terminal 11 (or the first signal terminal 21). By adopting the above innovative multiple combined matching methods, the power plug-in 10 and the signal plug-in 20 can be kept in place in the high-voltage connector very reliably and stably, so that the high-voltage connector has a very stable and reliable performance.

[0042] According to the solution of the present invention, an electromechanical device is further provided, in which a PCB board and one or more high-voltage connectors according to the present invention can be configured and used according to specific application requirements. Through operations such as the crimping electrical connection discussed above as an example, the high-voltage connector can be used to quickly, conveniently, safely and reliably connect the PCB board and the connection side. On the one hand, the power plug-in therein is connected to the corresponding interface on the PCB board and the connection side to transfer electrical energy / power, and on the other hand, the signal plug-in therein is connected to the corresponding interface on the PCB board and the connection side to transfer signals, such as HVIL and other signals. It should be noted that the electromechanical device according to the present invention has a wide range of applications, which may include but are not limited to many application types such as electronic compressors, motors, hydraulic presses, etc.

Claims

1. A high voltage connector (100), characterized in that: include: At least two power plug-ins (10), each of which is used for conducting electricity and has a first power terminal (11) and a second power terminal (12) which are opposite to and connected to each other, the first power terminal (11) being used for crimping and electrically connecting to a corresponding power interface on a PCB board, and the second power terminal (12) being used for electrically connecting to a corresponding power interface on a connection side to which the high-voltage connector (100) is to be connected; as well as At least two signal plug-ins (20), each of which is used to transmit signals and has a first signal terminal (21) and a second signal terminal (22) that are opposite to and connected to each other, the first signal terminal (21) being used to be crimped and electrically connected to a corresponding signal interface on the PCB board, the second signal terminal (22) being used to be electrically connected to a corresponding signal interface on the connection side, and the signal includes a high voltage interlock (HVIL) signal.

2. The high voltage connector (100) according to claim 1, wherein: The high-voltage connector (100) further comprises an outer shell (30) and an inner shell (40), wherein at least a portion of the inner shell (40) is inserted into the outer shell (30), the at least two power plug-ins (10) and the at least two signal plug-ins (20) are arranged in the inner shell (40) along the axial direction of the inner shell (40), and the first power terminal (11) and the first signal terminal (21) extend out of the inner shell (40) and the outer shell (30), and the second power terminal (12) and the second signal terminal (22) extend out of the inner shell (40) but do not extend out of the outer shell (30).

3. The high voltage connector (100) according to claim 2, wherein: The high voltage connector (100) further comprises: a connecting member (50) which is detachably mounted on the inner shell (40) and is provided with through holes (53) for the first power terminal (11) and the first signal terminal (21) to pass through respectively; and / or a sealing member (60) detachably mounted on the housing (30) for sealing; and / or An isolation portion (43) is provided on the inner shell (40) and arranged between the at least two power plug-ins (10) for isolating adjacent power plug-ins (10).

4. The high voltage connector (100) according to claim 3, wherein: The connector (50) comprises a first part (51) and a second part (52) connected to each other, the first part (51) being configured in a plate shape and the through hole (53) being arranged thereon, the second part (52) extending along the axial direction of the inner shell (40) and having a joint portion (54), the connector (50) being arranged to have a first position and a second position relative to the inner shell (40), wherein the connector (50) is in the first position when the joint portion (54) is engaged with a first matching portion (41) on the inner shell (40), and is in the second position when the joint portion (54) is engaged with a second matching portion (42) on the inner shell (40), and when the first power terminal (11) is crimped and electrically connected to a corresponding power interface on the PCB board, and the first signal terminal (21) is crimped and electrically connected to a corresponding signal interface on the PCB board, the connector (50) enters the second position from the first position; and / or The isolating portion (43) is configured as a protrusion extending from the body of the inner shell (40) toward a direction in which the first power terminal (11) is crimped and electrically connected to the PCB board; and / or The connecting piece (50) is made of insulating plastic, and the sealing piece (60) is made of rubber material.

5. The high voltage connector (100) according to claim 4, wherein: The engaging portion (54) is configured to be hook-shaped, the first matching portion (41) and the second matching portion (42) are respectively configured to be a first groove and a second groove located on the inner shell (40), and the first groove is closer to the first power terminal (11) than the second groove along the axial direction of the inner shell (40).

6. The high voltage connector (100) according to claim 2, wherein: The first power terminal (11) and / or the first signal terminal (21) are configured to contact a matching structure (44) disposed on an inner wall of the inner housing (40) to increase a retaining force.

7. The high voltage connector (100) according to claim 6, wherein: The first power terminal (11) and / or the first signal terminal (21) are configured to have a barb structure (112; 212), and the matching structure (44) comprises a first step (441), a second step (442) and a third step (443) arranged in sequence along a direction from the second power terminal (12) toward the first power terminal (11), the first step (441) being used to position the corresponding first power terminal (11) or the first signal terminal (21), the second step (442) being used to form an interference fit with the corresponding first power terminal (11) or the first signal terminal (21), and the third step (443) being used to form a clearance fit with the corresponding first power terminal (11) or the first signal terminal (21).

8. The high voltage connector (100) according to claim 2, wherein: The outer shell (30) is provided with a mounting portion (31) for mounting the high-voltage connector (100), and / or the outer shell (30) and the inner shell (40) are made of insulating plastic.

9. The high voltage connector (100) according to any one of claims 1 to 8, wherein: The first power terminal (11) and the second power terminal (12) are connected by resistance welding, and / or the first signal terminal (21) and the second signal terminal (22) are connected by resistance welding.

10. An electromechanical device, characterized in that: include: PCB board; as well as One or more high-voltage connectors (100) as described in any one of claims 1 to 9, wherein the high-voltage connector (100) is connected to the PCB board and the corresponding interface on the connection side through the at least two power plug-ins (10) for conduction, and is connected to the PCB board and the corresponding interface on the connection side through the at least two signal plug-ins (20) for signal transmission.

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