Connecting assembly and power supply module

Abstract

The utility model relates to the technical field of fasteners, and discloses a connecting assembly and a power module, and the connecting assembly comprises a nut column and a screw. The nut column is provided with a connecting hole, an opening of the connecting hole is located in the end face of the first end of the nut column, internal threads are arranged on the inner wall of the connecting hole and used for being matched with a threaded fastener to be connected with a first component, and a riveting structure is arranged at the first end of the nut column and used for being riveted to a second component. One end of the screw is connected to the second end of the nut column, and the other end of the screw penetrates through a third component and then is in threaded connection with a nut so that the third component can be clamped and fixed through cooperation of the nut and the end face of the second end of the nut column. By means of the mode, the connecting assembly can be connected with the first component, the second component and the third component at the same time, the occupied space is small, and the requirement for product miniaturization can be met.

Description

Technical Field

[0001] The present application relates to the technical field of fasteners, and in particular to a connection assembly and a power module. Background Art

[0002] Medical power supply is a power supply device designed for medical equipment and medical institutions. It must meet the strict standards and regulations of the medical industry to ensure power quality, power supply reliability and safety.

[0003] The current method of fixing the circuit board of the medical power supply is to set a nut column on the mounting plate, use screws to pass through the mounting holes of the circuit board and then screw them on the nut column, and then set an independent whole machine mounting hole on the mounting plate for the bolt to pass through and then fix the mounting plate to the housing of the medical device by threaded connection.

[0004] However, the method of separately setting independent whole-machine mounting holes and nut columns requires that the size of the mounting plate be increased to reserve sufficient space for setting the whole-machine mounting holes and nut columns, which is difficult to meet the demand for product miniaturization. Utility Model Content

[0005] In view of the problems existing in the background technology, the purpose of the present application is to provide a connection component and a power module to overcome the above problems or at least partially solve the above problems.

[0006] According to the first aspect of the present application, a connection assembly is provided, comprising: a nut column and a screw rod. The nut column is provided with a connection hole, the orifice of the connection hole is located at the end face of the first end of the nut column, the inner wall of the connection hole is provided with an internal thread, the internal thread is used to cooperate with a threaded fastener to connect a first component, and the first end of the nut column is provided with a riveting structure, the riveting structure is used to be riveted to a second component. One end of the screw rod is connected to the second end of the nut column, and the other end is used to pass through a third component and then be screwed with a nut, so that the third component is clamped and fixed by the cooperation between the nut and the end face of the second end of the nut column.

[0007] In one or more of the above optional embodiments, the riveting structure includes a pressing plate arranged around the outer wall of the nut column and an annular groove arranged around the outer wall of the nut column.

[0008] In one or more optional embodiments above, the connecting hole includes a guide section and a connecting section, the first end of the guide section forms the orifice, the second end of the guide section is connected to the connecting section, the internal thread is provided on the connecting section, the inner wall of the guide section is inclined toward the axis of the connecting hole, and the cross-sectional area of ​​the guide section gradually decreases from the first end of the guide section to the second end of the guide section. The cross-sectional area of ​​the guide section is a cross-sectional area perpendicular to the axial direction of the connecting hole.

[0009] In one or more of the above optional embodiments, the cross-sectional area of ​​the nut column is greater than the cross-sectional area of ​​the screw rod.

[0010] In one or more of the above optional embodiments, the cross-section of the nut column is circular.

[0011] In one or more of the above optional embodiments, the nut column, the screw rod and the connecting hole are coaxially distributed.

[0012] According to a second aspect of the present application, a power module is provided, comprising: a circuit board, a mounting plate, and a connection assembly as described above. The circuit board is provided with a mounting hole. The mounting plate is arranged at a relative interval with the circuit board, and the mounting plate is provided with a rivet hole. The nut column is riveted and fixed to the rivet hole through the rivet structure, the orifice of the connection hole is exposed on the side of the mounting plate facing away from the circuit board, the screw rod is passed through the mounting hole and is threadedly matched with the nut, and the nut and the end surface of the second end of the nut column jointly clamp and fix the circuit board.

[0013] In one or more of the above optional embodiments, an insulating plate is further included, wherein the insulating plate is arranged between the circuit board and the mounting plate, and the nut column passes through the insulating plate.

[0014] In one or more of the above optional embodiments, the power module also includes a shell, the mounting plate is arranged on the inner side of the shell, and the shell is provided with a through hole corresponding to the connecting hole, and the through hole is used for allowing one end of a threaded fastener to pass through to cooperate with the connecting hole, thereby fixing the shell to the first component and fixing the mounting plate to the shell.

[0015] In one or more optional embodiments above, the power module further includes a shell, the mounting plate is arranged on the inner side of the shell, and the mounting plate is a side wall of the shell.

[0016] The beneficial effect of the embodiment of the present application is that when the connection assembly provided by the embodiment of the present application is applied to a medical power supply, the circuit board of the medical power supply serves as the third component, the mounting plate of the medical power supply serves as the second component, and the housing of the medical power supply serves as the first component. The nut column can be riveted to the mounting plate through a riveting structure, and the screw rod passes through the mounting hole of the circuit board and is screwed to the nut to fix the circuit board to the mounting plate, and the internal thread of the connection hole can be used to cooperate with the threaded fastener to fix the medical power supply to the housing of the medical device. Compared with the traditional medical power supply, which separately sets the connection structure between the circuit board and the mounting plate and the connection structure between the mounting plate and the housing of the medical device, the connection assembly provided by the embodiment of the present application combines the connection structure between the circuit board and the mounting plate and the connection structure between the mounting plate and the housing of the medical device into one, thereby reducing the occupied space to meet the needs of product miniaturization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0018] Figure 1 A schematic diagram of a connection assembly provided in an embodiment of the present application;

[0019] Figure 2 Another schematic diagram of a connection assembly provided by an embodiment of the present application;

[0020] Figure 3 A schematic diagram of a power module provided in an embodiment of the present application;

[0021] Figure 4 A partial cross-sectional schematic diagram of a power module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0024] In the description of this specification, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0025] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0026] See also Figure 1 , Figure 2 and Figure 4 The connection assembly 100 includes a nut column 1 and a screw rod 2. The nut column 1 is provided with a connection hole 11, the opening of the connection hole 11 is located at the end face of the first end of the nut column 1, the inner wall of the connection hole 11 is provided with an internal thread, the internal thread is used to cooperate with a threaded fastener to connect the first component, and the first end of the nut column 1 is provided with a riveting structure 12, the riveting structure 12 is used to be riveted to the second component. One end of the screw rod 2 is connected to the second end of the nut column 1, and the other end is used to pass through the third component and then be screwed on the nut 3, so that the third component is clamped and fixed by the nut 3 and the end face 13 of the second end of the nut column 1.

[0027] When the connection assembly 100 provided in the embodiment of the present application is applied to a medical power supply, the circuit board 200 of the medical power supply is used as the third component, the mounting plate 300 of the medical power supply is used as the second component, and the housing of the medical device to which the medical power supply is applied is used as the first component. In the present application, the mounting plate 300 can be an independent plate or a side wall of the housing of the medical power supply. The nut column 1 can be riveted to the mounting plate 300 through the riveting structure 12, and the screw 2 passes through the mounting hole of the circuit board 200 and is screwed to the nut 3 to fix the circuit board 200 to the mounting plate 300. The internal thread of the connection hole 11 can be used to cooperate with the threaded fastener to fix the medical power supply to the housing of the medical device. Compared with the traditional medical power supply, the connection structure of the circuit board 200 and the mounting plate 300 and the connection structure of the mounting plate 300 and the housing of the medical device are separately set, and the connection assembly 100 provided in the embodiment of the present application combines the connection structure of the circuit board 200 and the mounting plate 300 and the connection structure of the mounting plate 300 and the housing of the medical device into one, thereby reducing the occupied space to meet the needs of product miniaturization.

[0028] In some embodiments, the riveting structure 12 includes a pressing sheet 121 disposed around the outer wall of the nut column 1 and an annular groove 122 disposed around the outer wall of the nut column 1 .

[0029] Taking the nut column 1 riveted to the mounting plate 300 of the medical power supply as an example, during riveting, the second end of the nut column 1 is passed through the rivet hole of the mounting plate 300, the pressing piece 121 is attached to the one side surface of the mounting plate 300, and the lower mold of the riveting device is abutted against the other side surface of the mounting plate 300. The annular groove 122 is located in the rivet hole, and the upper mold of the riveting device moves toward the lower mold to press the pressing piece 121 into the mounting plate 300. At this time, plastic deformation occurs around the riveting hole of the mounting plate 300, and the deformed part enters the annular groove 122, so that the nut column 1 is riveted to the mounting plate 300.

[0030] It can be understood that in some other embodiments, the riveting structure 12 is not limited to the above-mentioned pressing sheet 121 and annular groove 122. For example, in some other embodiments, the riveting structure 12 can be an annular portion and embossed teeth arranged around the opening of the connecting hole 11, and a guide groove is formed between the annular portion and the embossed teeth. The embossed teeth are squeezed into the mounting plate 300 by pressure to cause plastic deformation of the periphery of the riveted hole, and the deformed object is squeezed into the guide groove, thereby producing a locking effect; or the riveting structure 12 can also be an annular head arranged on the outer wall of the nut column 1 and a deformation section as a part of the first end of the nut column 1. When riveting, the nut column 1 is placed in a pre-drilled hole on the plate, and a rivet gun is used to apply pressure to the deformation section to cause it to expand outward and fit tightly with the plate.

[0031] In some embodiments, the cross section of the nut column 1 is circular.

[0032] In some embodiments, the cross-sectional area of ​​the nut column 1 is larger than the cross-sectional area of ​​the screw rod 2 .

[0033] In some embodiments, the axis of the connecting hole 11 coincides with the axis of the nut column 1 .

[0034] In some embodiments, one end of the screw rod 2 is connected to an end surface 13 of the second end of the nut column 1 .

[0035] In some embodiments, the nut column 1, the screw rod 2 and the connecting hole 11 are coaxially distributed.

[0036] In some embodiments, the connecting hole 11 is a blind hole.

[0037] See also Figure 4 In some embodiments, the connection hole 11 includes a guide section 111 and a connection section 112. The first end of the guide section 111 forms the orifice of the connection hole 11. The second end of the guide section 111 is connected to the connection section 112. The internal thread is arranged on the connection section 112. The inner wall of the guide section 111 is inclined toward the axis of the connection hole 11. The cross-sectional area of ​​the guide section 111 gradually decreases from the first end of the guide section 111 to the second end of the guide section 111. The cross-sectional area of ​​the guide section 111 is a cross-sectional area perpendicular to the axial direction of the connection hole 11. The guide section 111 is used to guide the threaded fastener into the connection section 112 during installation, so as to facilitate the threaded fastener to be screwed to the connection section 112.

[0038] In some embodiments, the connection assembly 100 further includes a threaded fastener for connecting with the first component. The threaded fastener may be a bolt, a screw, or the like.

[0039] In some embodiments, the connection assembly 100 further includes a nut 3 for connecting with a third component.

[0040] In some embodiments, the nut 3 is a lock nut.

[0041] See also Figure 3 and Figure 4 Based on the same inventive concept, the embodiment of the present application further provides a power module 1000, comprising a circuit board 200, a mounting plate 300 and a connection assembly 100 in any of the above embodiments. The nut column 1 is riveted and fixed to a rivet hole provided on the mounting plate through a riveting structure 12, the orifice of the threaded hole is exposed on the side of the mounting plate 300 facing away from the circuit board 200, the screw rod 2 is passed through the mounting hole and threadedly matched with the nut 3, and the nut 3 and the end face 13 of the second end of the nut column 1 jointly clamp and fix the circuit board 200.

[0042] In some embodiments, the power module 1000 further includes an insulating plate 400 , which is disposed between the circuit board 200 and the mounting plate 300 , and the nut column 1 passes through the insulating plate 400 .

[0043] In some implementations, there are multiple connection assemblies 100 . For example, there are four connection assemblies 100 . The mounting plate 300 is generally in the shape of a rectangular plate, and the four connection assemblies 100 are respectively disposed at the four end corners of the mounting plate 300 .

[0044] In some embodiments, the power module 1000 also includes a shell, the mounting plate 300 is arranged on the inner side of the shell, and the shell is provided with a through hole corresponding to the connecting hole 11, and the through hole is used for allowing one end of the threaded fastener to pass through to cooperate with the connecting hole 11, thereby fixing the shell to the first component and fixing the mounting plate 300 to the shell.

[0045] In some embodiments, the housing includes a top plate, a bottom plate, and side panels, which together form a receiving cavity, and the circuit board 200 and the mounting plate 300 are disposed in the receiving cavity.

[0046] In some embodiments, the base plate is provided with a through hole, and the mounting plate 300 is arranged toward the base plate with the side facing away from the circuit board 200. The threaded fastener is a bolt, which passes through the through hole and is screwed to the internal thread of the connecting hole 11 to fix the mounting plate 300 to the base plate.

[0047] It is understandable that in some other embodiments, the mounting plate 300 may be a side wall of the housing. Exemplarily, the mounting plate 300 serves as a bottom plate, and together with the side panels and the top plate, forms a receiving cavity, and the circuit board 200 and the mounting plate 300 are disposed in the receiving cavity. The opening of the connecting hole 11 is exposed on the side of the bottom plate facing away from the receiving cavity. During installation, the threaded fastener is threadedly matched with the connecting hole 11 to fix the housing to the first component.

[0048] Based on the same inventive concept, an embodiment of the present application also provides a medical device, including a power module 1000 and a shell in any of the above embodiments, the shell being the first component, the power module 1000 being arranged in the shell, and the threaded fastener passing through the shell is screwed and fixed to the connecting hole 11 to fix the power module 1000 to the shell.

[0049] It can be understood that the threaded fastener is not limited to being the above-mentioned accessory independent of the housing. In some other embodiments, the threaded fastener can be a part of the housing. For example, the threaded fastener can be a screw provided on the housing.

[0050] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A connection assembly, characterized in that: include: A nut column, wherein the nut column is provided with a connection hole, the opening of the connection hole is located at the end surface of the first end of the nut column, the inner wall of the connection hole is provided with an internal thread, the internal thread is used to cooperate with a threaded fastener to connect the first component, and the first end of the nut column is provided with a riveting structure, and the riveting structure is used to be riveted to the second component; A screw rod has one end connected to the second end of the nut column and the other end used to pass through the third component and then be threaded with a nut, so as to clamp and fix the third component through the end faces of the nut and the second end of the nut column.

2. The connection assembly according to claim 1, characterized in that: The riveting structure includes a pressing sheet arranged around the outer wall of the nut column and an annular groove arranged around the outer wall of the nut column.

3. The connection assembly according to claim 1, characterized in that: The connecting hole comprises a guide section and a connecting section, the first end of the guide section forms the orifice, the second end of the guide section is connected to the connecting section, the internal thread is provided on the connecting section, the inner wall of the guide section is inclined toward the axis of the connecting hole, and the cross-sectional area of ​​the guide section gradually decreases in the direction from the first end of the guide section to the second end of the guide section; Wherein, the cross section of the guide section is a cross section perpendicular to the axial direction of the connecting hole.

4. The connection assembly according to claim 1, characterized in that: The cross-sectional area of ​​the nut column is larger than the cross-sectional area of ​​the screw rod.

5. The connection assembly according to claim 1, characterized in that: The cross section of the nut column is circular.

6. The connection assembly according to claim 5, characterized in that: The nut column, the screw rod and the connecting hole are coaxially distributed.

7. A power module, characterized in that: include: A circuit board is provided with a mounting hole; A mounting plate, arranged relative to and spaced from the circuit board, the mounting plate being provided with riveting holes; According to the connection assembly as described in any one of claims 1-6, the nut column is riveted and fixed to the rivet hole through the riveting structure, the orifice of the connection hole is exposed on the side of the mounting plate facing away from the circuit board, the screw rod is passed through the mounting hole and cooperates with the nut thread, and the nut and the end face of the second end of the nut column jointly clamp and fix the circuit board.

8. The power module according to claim 7, characterized in that: It also includes an insulating plate, which is arranged between the circuit board and the mounting plate, and the nut column passes through the insulating plate.

9. The power module according to claim 7 or 8, characterized in that: It also includes a shell, the mounting plate is arranged on the inner side of the shell, and the shell is provided with a through hole corresponding to the connecting hole, the through hole is used for one end of a threaded fastener to pass through to cooperate with the connecting hole, thereby fixing the shell to the first component and fixing the mounting plate to the shell.

10. The power module according to claim 7 or 8, characterized in that: It also includes a shell, the mounting plate is arranged on the inner side of the shell, and the mounting plate is a side wall of the shell.

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