Electrical connection device for PCB and electromechanical equipment

Abstract

The invention relates to an electric connection device for a PCB (Printed Circuit Board) and electromechanical equipment. The electric connection device comprises a support, the support is provided with one or more first positioning portions and one or more first assembling portions, the first positioning portions are matched with second positioning portions on a PCB to enable the support to be positioned on the PCB, the first assembling portions are provided with cavities suitable for containing first connecting pieces inside, and the first assembling portions are provided with second assembling portions suitable for containing second connecting pieces inside. Wherein the first connecting piece and the second connecting piece are used for being arranged on the two opposite sides of the PCB respectively so as to clamp the PCB after the first connecting piece and the second connecting piece are jointed, so that the conductive piece arranged between the first connecting piece and the second connecting piece is electrically connected with a circuit on the PCB. According to the electric connection device, reliable electric connection between the external component and the PCB can be realized, the installation process is efficient, and the cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connection, and more specifically, to an electrical connection device for a PCB board 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 some components such as high-voltage connectors, press-in nuts are generally used to electrically connect them to the PCB board. However, since such press-in nuts and the mounting holes on the PCB board are usually fitted with interference during assembly, a lot of metal particles are easily generated when they are pressed into the mounting holes. These metal particles are often difficult to find and completely remove, so they are easy to bring undesirable effects on the insulation performance of the PCB board. In addition, during the installation process, it is often necessary to place the cable sheet of the above-mentioned components on the press-in nut first and hold it by the installer, and then fix the cable sheet in place on the PCB board by manually tightening the nut. This operation method will reduce work efficiency. Moreover, since the press-in nut is a processed part, its price is relatively high. In addition, another connection method for PCB boards is to use plastic nuts. However, when the flatness of the plastic nuts is poor, it is possible to cause local structural damage to the PCB board or poor contact during installation, which will have an adverse effect on the working performance of the PCB board and even the electromechanical equipment.

[0003] The contents described in this section are for facilitating understanding of the present invention application, and therefore, unless otherwise stated, it should not be considered that any of the contents described above are already prior art simply because they are included in this section. Summary of the invention

[0004] In view of this, the present invention provides an electrical connection device and an electromechanical device for a PCB board, 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.

[0005] According to one aspect of the present invention, first, an electrical connection device for a PCB board is provided, the electrical connection device comprising a bracket, the bracket having one or more first positioning portions and one or more first assembly portions, the first positioning portion being adapted to a second positioning portion on a PCB board for positioning the bracket on the PCB board, the first assembly portion having a cavity suitable for accommodating a first connector therein, wherein the first connector and the second connector are used to be respectively arranged on opposite sides of the PCB board to clamp the PCB board after they are engaged, so that a conductive member arranged between the first connector and the second connector forms an electrical connection with a circuit on the PCB board.

[0006] In the electrical connection device for a PCB board according to the present invention, optionally, the bracket also has one or more retaining portions, the conductive member is a cable sheet that forms an electrical connection with the cable, and the retaining portion is configured to accommodate and retain a portion of the cable in the retaining portion.

[0007] In the electrical connection device for a PCB board according to the present invention, optionally, the retaining portion is configured as a non-enclosed structure extending outward from the bracket and having a gap, and the gap is configured to allow the cable to pass therethrough and be arranged in the retaining portion or detach from the retaining portion; and / or, the cable sheet is arranged above the PCB board during installation and is located between the second connector and the PCB board after installation.

[0008] In the electrical connection device for a PCB board according to the present invention, optionally, the bracket has a first retaining portion and a second retaining portion, and the first retaining portion and the second retaining portion are respectively used to accommodate and retain respective parts of a first cable and a second cable of an external component, and the external component is electrically connected to the PCB board via the first cable and the second cable to form a current loop, and the external component includes a high-voltage connector.

[0009] In the electrical connection device for a PCB board according to the present invention, optionally, the bracket further has one or more second assembly parts, and the second assembly parts are configured to fix the bracket to the PCB board by engaging with a connecting piece; and / or, the first positioning part is configured as a first hole and / or a first protrusion extending from the bracket toward the PCB board fixed thereto, and the second positioning part is configured as a second protrusion correspondingly matched with the first hole, or a second hole correspondingly matched with the first protrusion.

[0010] In the electrical connection device for a PCB board according to the present invention, optionally, the bracket has three first positioning portions and three second assembly portions, wherein two of the first positioning portions and one of the second assembly portions are arranged on one side of the bracket, and another first positioning portion and another two of the second assembly portions are arranged on the other side of the bracket.

[0011] In the electrical connection device for a PCB board according to the present invention, optionally, the outer surface of the first protrusion is provided with a convex portion for forming abutment contact when the first protrusion is inserted into the second hole for positioning matching, and / or the outer surface of the second protrusion is provided with a convex portion for forming abutment contact when the second protrusion is inserted into the first hole for positioning matching.

[0012] In the electrical connection device for a PCB board according to the present invention, optionally, the electrical connection device further comprises the first connection member and the second connection member, the inner wall of the cavity is provided with a protrusion, the first connection member abuts against the protrusion when being detachably arranged in the cavity to be clamped in the cavity, and the second connection member, when engaged with the first connection member, causes the first connection member to break away from the abutting contact with the protrusion and move toward the PCB board and abut against the PCB board; and / or

[0013] The bottom of the cavity is closed and / or the cross-sectional shape of the cavity matches the cross-sectional shape of the first connecting member; and / or

[0014] The bracket is made of insulating plastic.

[0015] In the electrical connection device for a PCB board according to the present invention, optionally, the first connection member and the second connection member are a nut and a screw respectively, and at least two protrusions are provided in the circumferential direction of the inner wall of the cavity.

[0016] In addition, according to another aspect of the present invention, there is further provided an electromechanical device, comprising:

[0017] PCB board; and

[0018] One or more electrical connection devices for a PCB board as described in any one of the above items, wherein the electrical connection device clamps the PCB board by engaging the first connection member with the second connection member, so that the conductive member forms an electrical connection with the circuit on the PCB board.

[0019] The use of the electrical connection device can realize reliable electrical connection between external components and PCB boards, avoiding the problems of metal particles and poor flatness during the installation process in the prior art, which affect the installation quality and working performance of the product. The entire installation process is efficient and low-cost, and the electrical connection device can be integrated and applied to various possible modules as needed. The electrical connection device is highly practical and has a wide range of applications, and can be applied to many types of electromechanical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a three-dimensional structural schematic diagram of an embodiment of an electrical connection device for a PCB board according to the present invention.

[0021] Figure 2 and Figure 3 They are Figure 1 The front partial three-dimensional structural diagram of the electrical connection device embodiment and the corresponding back partial structural diagram are shown.

[0022] Figure 4 yes Figure 1 Another partial three-dimensional structural schematic diagram of the front side of the electrical connection device embodiment is shown, wherein an assembly portion and a retaining portion are shown.

[0023] Figure 5 yes Figure 1 The illustrated schematic diagram is a partial three-dimensional structure diagram of an electrical connection device embodiment after being connected to a PCB board example and an external component example.

[0024] Figure 6 yes Figure 5 The illustrated embodiment of the electrical connection device is a partial side view schematic diagram of the structure after being connected to an example PCB board and an example external component. DETAILED DESCRIPTION

[0025] Please refer to Figures 1 to 6 , which uses an example to illustrate the general structure, installation and use of an embodiment of an electrical connection device according to the present invention. With the help of this electrical connection device, external components can be accurately, quickly and reliably electrically connected and installed on the PCB board. The following is a detailed introduction to the present invention through this embodiment.

[0026] like Figures 1 to 6 As shown, the electrical connection device 100 may include a bracket 10, which serves as the basis of the overall structure. It can be made of one or more suitable materials such as insulating plastics, and a positioning portion 11, an assembly portion 12 and an assembly portion 13 can be set on the bracket 10 according to application requirements, which has been exemplarily shown in the above drawings.

[0027] The positioning portion 11 can be disposed at any suitable position on the bracket 10, and it matches with the positioning portion 201 disposed on the PCB board 200, so that the bracket 10 can be positioned on the PCB board 200. Figure 5 and Figure 6 As an optional situation, for example, the positioning portion 11 can be constructed as a protrusion extending from the bracket 10 toward the PCB board 200, and the positioning portion 201 can be correspondingly constructed as a hole matching the protrusion. The positioning function of the bracket 10 on the PCB board 200 can be achieved through the corresponding cooperation between the above protrusions and the holes. Further, one or more convex portions 111 can be optionally provided on the outer surface of the positioning portion 11 in a protruding structure, for example, three convex portions 111 can be evenly provided along the circumferential direction of the outer surface of the positioning portion 11, and they can be optionally constructed to have an inclined structure along the vertical direction perpendicular to the plane where the bracket 10 is located. By providing such convex portions, it can be promoted to form abutting contact when the positioning portion 11 and the positioning portion 201 are positioned and inserted, so as to facilitate the bracket 10 and the PCB board 200 bracket to be in close contact and achieve the beneficial effects of fast and accurate positioning operation and very stable positioning position.

[0028] It should be noted that in some applications, the positioning portion 11 on the bracket 10 and the positioning portion 201 on the PCB board 200 can be respectively constructed as corresponding holes and protrusions, or any other positioning matching structures can be used, which are all permitted by the present invention without limitation.

[0029] The assembly portion 12 is disposed on the bracket 10 and is configured to have a cavity 120. A connector 14 (such as a nut, etc.) can be detachably arranged inside the cavity 120 so as to be used for a mating connection operation with a connector 15 (such as a screw, etc.). That is, after the electrical connection device 100 is positioned relative to the PCB board 200 by the positioning portion 11, the connector 15 can be operated on the other side of the PCB board 200 (i.e., the opposite side of the PCB board 200 where the bracket 10 is currently located) to engage the connector 14, so that the PCB board 200 can be clamped between the two. Through the above engagement operation of the connector 14 and the connector 15, an electrically conductive member arranged between them can also be electrically connected to the circuit on the PCB board 200. The conductive member can be any component that can be used to achieve electrical connection between external components and the PCB board, such as in Figure 5 and Figure 6 In the illustrated embodiment, the conductive member is embodied as a cable sheet 22 connected to a cable 21 , through which the PCB board 200 and components located outside it, such as a high-voltage connector, a power module, etc., can be connected.

[0030] As an option, the cavity 120 of the assembly portion 12 can be configured to have a cross-sectional shape that matches the cross-sectional shape of the connector 14, so that the connector 14 can be prevented from idling when the connector 14 and the connector 15 are connected, making the installation process very easy and efficient. For example, the cavity 120 can be configured to have a cross-sectional shape such as a quadrilateral or hexagon. Figure 1 The connector 14 can be a common component that is easily available on the market, such as an M4 hexagonal nut, which is not only easy to obtain in large quantities and relatively cheap, but also does not produce a large amount of metal particles during the installation process to affect the insulation performance of the PCB board like the existing press-in nut method during the connection operation with the connector 15, thus effectively avoiding the PCB board from having problems such as failure or abnormality during use due to the above reasons.

[0031] In addition, one or more protrusions 121 may be optionally provided on the inner wall of the cavity 120 (for example, two, three or more protrusions 121 may be evenly arranged along the circumferential direction of the inner wall of the cavity 120), so that when the connector 14 is detachably arranged inside the cavity 120, the connector 14 abuts against the protrusions 121 to make it more reliably stuck in place in the cavity 120 and not easy to fall off. When the connector 15 and the connector 14 are engaged, the force applied to the connector 14 will cause it to break away from the original abutment contact with the protrusion 121, so that the connector 14 moves toward the PCB board 200 and can form a sufficient and close abutment contact with the latter, so that good flatness can be provided and problems such as undesirable pull damage or poor contact on the PCB board can be avoided, thereby achieving low-resistance electrical connection and ensuring working performance.

[0032] Continue to refer Figure 4 and Figure 6 The bottom 122 of the cavity 120 can be optionally constructed as a closed structure, which is conducive to directly retaining certain foreign matter that may appear during installation or use (such as metal particles that may be generated by the existing installation method) in the bottom space of the cavity 120, effectively avoiding the negative impact that such foreign matter may have on the PCB board. For example, in existing products, they may enter the PCB board and destroy the circuit connection characteristics of the circuit layer, causing unexpected faults or abnormal problems.

[0033] In addition to feasible methods such as bonding, the assembly portion 13 can be provided as an additional optional configuration on the bracket 10 to connect the bracket 10 to the PCB board. According to different application requirements, the assembly portion 13 can be flexibly arranged at any suitable position on the bracket 10 to fix the bracket 10 and the PCB board 200. The specific configuration number of the assembly portion 13 can be one, two or more as required. For another example, the assembly portion 13 can be a threaded hole structure, which can be screwed with a connector 18 such as a screw to facilitate the fixing of the bracket 10 to the PCB board 200. Figure 5 and Figure 6 For another example, the assembly portion 13 may also adopt one or more feasible structures such as buckles alone or in combination, for example, Figure 1 , Figure 5 and Figure 6 In the drawings, reference numeral 17 is used to additionally indicate this.

[0034] Different from the conventional PCB board electrical connection methods commonly used in the prior art, such as press-in nuts, plastic nuts, etc., the electrical connection device of the present invention can be used to electrically connect external components to the PCB board very reliably, accurately and quickly. It can not only effectively solve the problems of poor installation operation quality, relatively complicated process, high cost and other problems existing in the existing installation methods, but also the electrical connection device can be flexibly integrated and applied to various possible modules as needed. For example, one or several electrical connection devices can be installed and configured on a PCB board.

[0035] As one of the structural optimization improvements of the electrical connection device of the present invention, one or more retaining portions 16 can be provided on the bracket 10 so as to accommodate and retain a portion of a cable connected to a conductive member (such as a cable sheet) therein. In this way, the pre-fixing and positioning operations of the conductive member can be very conveniently implemented, thereby facilitating the subsequent fixed connection operations between the electrical connection device, the conductive member and the PCB board. This helps to reduce or eliminate manual intervention in the installation process and promote automated installation, significantly improve work efficiency and installation quality, and reduce overall costs.

[0036] refer to Figure 1 , Figure 5 and Figure 6 In the electrical connection device 100 shown as an example, two retaining portions 16 can be provided on the bracket 10, which can be optionally configured as a non-enclosed structure extending from the bracket 10 toward the external space and having a notch 161, so as to allow the cable 21 to pass through the notch 161 and be arranged in the retaining portion 16 (or perform the opposite operation, so that the cable 21 passes through the notch 161 and leaves the retaining portion 16). Figure 5 and Figure 6 In the illustrated example, the two holding portions 16 shown can be used to respectively accommodate and hold a portion of two cables 21 of the external component 20, and the two cables 21 can be electrically connected to the circuit on the PCB board 200 to realize a current loop, so that the external component 20 can be put into operation. As an example, the external component 20 can be a high-voltage connector used on equipment such as vehicles, and the operating voltage of the high-voltage connector can be designed differently in 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.

[0037] As an example, Figure 5 and Figure 6 As shown in the figure, during installation, the cable sheet 22 connected to the cable 21 can be optionally arranged above the PCB board 200, so that it can maintain good flatness. After installation, the cable sheet 22 will form an electrical connection with the circuit on the PCB board 200. Although the present invention also allows that in some applications, conductive parts such as the cable sheet 22 can be installed and arranged below the PCB board to form an electrical connection of the circuit, the use of the cable sheet 22 is not suitable for the PCB board 200. Figure 5 The arrangement of the conductive member above the PCB board for electrical connection is relatively more advantageous in terms of facilitating compact space layout, installation convenience, maintaining the flatness of the conductive member, and long-term working reliability, which is significantly better than many existing installation methods. For descriptive purposes in this article, the technical terms "upper", "lower", "inner", "outer", "vertical" and their derivatives should be used in conjunction with the following: Figure 5 The orientation shown in the figure, for example, the technical term “above” is relative to the fact that the bracket 10 and the holding portion 16 are located below the PCB board 200 .

[0038] In addition, the structure of the PCB board 200 itself can be optimized, for example, it can be different from the conventional configurations such as rectangle and square commonly used in existing PCB board products, allowing for a better spatial layout design to be achieved in combination with the specific arrangement of the cable sheet 22, the bracket 10, etc. Figure 5As shown, the corresponding positions of the adjacent cables 21 and the cable pieces 22 can be arranged so that the corresponding parts on the PCB board 200 are staggered (for example, a part of them is cut off) to facilitate the installation and accommodation of these cables 21 and cable pieces 22, and promote the realization of a compact space layout. In addition, in some cases, it is also possible to consider setting an optional notch 202 on the PCB board 200 to help prevent or reduce interference or influence that may occur between adjacent cables 21 and cable pieces 22 during operation. For example, when the external component 20 is a high-voltage connector, the creepage distance can be effectively increased by means of the notch or similar structure, which is beneficial for ensuring and improving working performance. It should be understood that the electrical connection device 100 allows the product to be manufactured, sold, transported and used in a separate bracket 10. In this case, the connector 14, the connector 15 and other components that may be used can be used as external accessories. In one or some embodiments, the components such as the connector 14 can be directly configured on the bracket 10, and then they are used together as the electrical connection device 100. For the positioning portion 11, the assembly portion 12, the assembly portion 13, etc., the present invention allows flexible design and configuration in the electrical connection device 100 according to application requirements. For example, as an optional situation, three positioning portions 11 and three assembly portions 13 can be arranged on the bracket 10 at the same time, and two of the positioning portions 11 and one assembly portion 13 are arranged on one side of the bracket 10, and the remaining one positioning portion 11 and two assembly portions 13 are arranged on the other side of the bracket 10. With the help of the crossed triangular layout formed by the above positioning portions 11 and assembly portions 13, the positioning and fixed connection operations between the electrical connection device, the conductive member and the PCB board can be optimized and enhanced, thereby promoting the realization of a PCB board with very stable and reliable installation quality and working performance.

[0039] It should be understood that the present invention does not limit the specific structure of the bracket 10 itself. For example, it can be constructed into any suitable shape and size structure by using suitable processes such as injection molding and machining as needed. Figure 3 It is schematically shown that the bracket 10 can be constructed with optional structures such as reinforcing ribs 101 and cavities 102 to obtain improved mechanical properties in terms of stiffness, compression resistance, and light weight.

[0040] According to the solution of the present invention, an electromechanical device is also provided, in which a PCB board and one or more electrical connection devices according to the present invention can be configured and used according to specific application requirements. Through operations such as corresponding positioning, assembly and joining discussed above as an example, the electrical connection device can be satisfactorily fixed to the PCB board, and at the same time, a reliable electrical connection can be achieved between the conductive parts in the components required for the application, such as high-voltage connectors, and the circuits on the PCB board.

[0041] As mentioned above, the electrical connection device of the present invention can realize safe, reliable and efficient installation connection between the electrical connection device and external components and the PCB board, thereby promoting large-scale, high-quality and low-cost production and manufacturing, making the electromechanical equipment more outstanding in terms of performance quality, cost, etc. compared with existing products. The electromechanical equipment according to the present invention has a wide range of applications, including but not limited to many application types such as electronic compressors, motors, hydraulic presses, etc.

Claims

1. An electrical connection device (100) for a PCB board (200), characterized in that: The electrical connection device (100) comprises a bracket (10), the bracket (10) having one or more first positioning portions (11) and one or more first assembly portions (12), the first positioning portion (11) being adapted to a second positioning portion (201) on a PCB (200) for positioning the bracket (10) on the PCB (200), the first assembly portion (12) having a cavity (120) adapted to accommodate a first connector (14) therein, wherein the first connector (14) and the second connector (15) are respectively arranged on opposite sides of the PCB (200) so as to clamp the PCB (200) after they are joined, so that a conductive member arranged between the first connector (14) and the second connector (15) forms an electrical connection with a circuit on the PCB (200).

2. The electrical connection device (100) for a PCB board (200) according to claim 1, wherein: The bracket (10) further comprises one or more retaining portions (16), the conductive member being a cable sheet (22) electrically connected to the cable (21), and the retaining portion (16) being configured to accommodate and retain a portion of the cable (21) within the retaining portion (16).

3. The electrical connection device (100) for a PCB board (200) according to claim 2, wherein: The retaining portion (16) is configured as a non-enclosed structure extending outward from the bracket (10) and having a notch (161), wherein the notch (161) is configured to allow the cable (21) to pass therethrough and be arranged in the retaining portion (16) or to be detached from the retaining portion (16); and / or, the cable sheet (22) is arranged above the PCB board (200) during installation, and is located between the second connecting member (15) and the PCB board (200) after installation.

4. The electrical connection device (100) for a PCB board (200) according to claim 2, wherein: The bracket (10) comprises a first retaining portion and a second retaining portion, wherein the first retaining portion and the second retaining portion are respectively used to accommodate and retain a portion of a first cable and a second cable of an external component (20), wherein the external component (20) is electrically connected to the PCB board (200) via the first cable and the second cable to form a current loop, and the external component (20) comprises a high-voltage connector.

5. The electrical connection device (100) for a PCB board (200) according to claim 1, wherein: The bracket (10) further comprises one or more second assembly parts (13), the second assembly parts (13) being configured to enable the bracket (10) to be fixedly connected to the PCB board (200); and / or the first positioning part (11) is configured to be a first hole and / or a first protrusion extending from the bracket (10) toward the PCB board (200) fixedly connected thereto, and the second positioning part (201) is configured to be a second protrusion correspondingly matched with the first hole, or a second hole correspondingly matched with the first protrusion.

6. The electrical connection device (100) for a PCB board (200) according to claim 5, wherein: The bracket (10) has three first positioning portions (11) and three second assembly portions (13), wherein two of the first positioning portions (11) and one of the second assembly portions (13) are arranged on one side of the bracket (10), and another first positioning portion (11) and another two of the second assembly portions (13) are arranged on the other side of the bracket (10).

7. The electrical connection device (100) for a PCB board (200) according to claim 5, wherein: The outer surface of the first protrusion is provided with a convex portion (111) for forming abutment contact when the first protrusion is inserted into the second hole for positioning matching, and / or the outer surface of the second protrusion is provided with a convex portion for forming abutment contact when the second protrusion is inserted into the first hole for positioning matching.

8. The electrical connection device (100) for a PCB board (200) according to any one of claims 1 to 7, wherein: The electrical connection device (100) further comprises the first connection member (14) and the second connection member (15); the inner wall of the cavity (120) is provided with a protrusion (121); when the first connection member (14) is detachably arranged in the cavity (120), it abuts against the protrusion (121) to be clamped in the cavity (120); and when the second connection member (15) is engaged with the first connection member (14), the first connection member (14) is disengaged from the abutment with the protrusion (121) and moves toward the PCB board (200) and abuts against the PCB board (200); and / or The cavity (120) is configured to be bottom-closed and / or to have a cross-sectional shape that matches the cross-sectional shape of the first connecting member (14); and / or The bracket (10) is made of insulating plastic.

9. The electrical connection device (100) for a PCB board (200) according to claim 8, wherein: The first connecting member (14) and the second connecting member (15) are a nut and a screw respectively, and at least two protrusions (121) are provided in the cavity (120) along the circumferential direction of the inner wall.

10. An electromechanical device, characterized in that: include: PCB board (200); as well as One or more electrical connection devices (100) for a PCB board (200) as claimed in any one of claims 1 to 9, wherein the electrical connection device (100) clamps the PCB board (200) by engaging the first connection member (14) with the second connection member (15), so that the conductive member forms an electrical connection with the circuit on the PCB board (200).

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