CN210245770U

CN210245770U - Novel metal needle of control assembly power

Info

Publication number: CN210245770U
Application number: CN201920800528.5U
Authority: CN
Inventors: Gaofeng Du; 杜高峰
Original assignee: Zh Wielain Electronic Hangzhou Co ltd
Current assignee: Zh Wielain Electronic Hangzhou Co ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-04-03
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses a novel metal needle of control assembly power, its characterized in that: the metal needle is sleeved with the connecting seat, the metal needle consists of an upper end, a lower end and a middle connecting rod, the upper end of the metal needle is connected with a hole of the PCB, and the lower end of the metal needle is sleeved with the connecting seat; the bottom of the connecting seat is connected with a ceramic circuit, and the ceramic circuit is fixed on the copper substrate. The utility model discloses have: 1. the cost is reduced as much as possible; 2. the use is convenient; 3. the reliability of the stability; by means of interference design, the retention force and the insertion force between designs are designed; to meet the different force requirements of different use environments.

Description

Novel metal needle of control assembly power

Technical Field

The utility model relates to a plug-in terminal that power module used especially relates to a novel metal needle of control assembly power.

Background

The patent No. 201510840438.5 discloses a plug-in terminal of a power module, which includes a plug portion, a transition portion and a connection portion sequentially arranged from top to bottom, wherein a buffer portion is further arranged between the transition portion and the connection portion, the buffer portion includes a support plate fixedly connected to the transition portion and extending toward the connection portion, and a bending portion arranged on at least one side of the support plate; a transverse gap is formed between the supporting plate and the connecting part; and a vertical gap is formed between the support plate and any one bending part.

The above patents have the following drawbacks:

the cost is stamped and formed, the material utilization rate is low, and the cost is high; the conventional similar product in the process has longer terminals, and after welding, the DBC of the bottom ceramic circuit interferes with bonding equipment when a routing process is carried out, so that the DBC processing process is limited. Moreover, the product is positioned in a hole of the shell, so the product is welded on the DBC firstly, and then the shell is assembled, and the assembly process is limited; functionally, the S-shaped or C-shaped support force is limited by the selected material, and the material is limited due to the application requirement of the welding-free end, so that the support force is limited, the deformation amount depends on the size of the gap at the bottom of the terminal, and when the support force is smaller than the insertion force of the welding-free terminal and the PCB during the assembly of the PCB, the deformation amount becomes rigid support after the deformation amount reaches, and the circuit cannot be well protected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel metal needle of control assembly power.

The utility model provides a technical scheme that above-mentioned technical problem adopted is:

the utility model discloses a novel metal needle for controlling assembly force, which comprises a metal needle and a connecting seat, wherein the metal needle is sleeved with the connecting seat and consists of an upper end and a lower end and a middle connecting rod, the upper end of the metal needle is connected with a hole of a PCB, the lower end of the metal needle is sleeved with the connecting seat, and the upper end of the metal needle is larger than the lower end of the metal needle; the bottom of the connecting seat is connected with a ceramic circuit, and the ceramic circuit is fixed on the copper substrate. The utility model discloses a metal needle cup joints with the connecting seat for when being connected with the PCB board, metal needle when the atress is too big in the twinkling of an eye, decomposes its atress through sliding.

Preferably, the lower end is in interference contact with the contact surface of the connecting seat. Through interference contact, the metal needle can be decomposed by friction to bear force instantly.

Preferably, a shell is arranged on the copper substrate, and through holes corresponding to the metal pins are arranged on the shell.

Preferably, the connecting seat is a copper ring or a thimble seat.

Preferably, the copper ring has a structure including a first contact end, a second contact end and a hollow contact tube, the hollow contact tube is in a hollow tube shape, and the first contact end and the second contact end are respectively arranged at two ends of the hollow contact tube and are in the same design; the first contact end is provided with a first flange, the first flange and a plane have one or more continuous contact areas, and the first flange divides the first contact end into one or more sections; the second contact end is provided with a second flange having one or more continuous contact areas with the plane and dividing the second contact end into one or more sections. The two ends are designed in the same way, so that the contact element is not needed to be distinguished from the front side and the back side when in use.

Preferably, the lower end of the metal needle is a square tube which is slightly higher than the original edge by pressing a groove into four sides. Through the slightly higher original edge of four edges, perhaps adjustment copper pipe internal diameter is interference contact when cooperating with the copper ring for the metal needle can slowly move in the copper ring.

Preferably, the lower end of the metal needle is provided with a trumpet-shaped through hole which is matched with the thimble seat.

Preferably, the thimble seat is tower-shaped.

The utility model has the advantages that:

1. the cost is reduced as much as possible; 2. the use is convenient; 3. the reliability of the stability; retention and insertion forces between designs are designed by interference design. To meet the different force requirements of different use environments.

Drawings

FIG. 1 is a schematic structural view of the present invention in application;

FIG. 2 is a schematic view of the base mounting of the present invention;

fig. 3 is a schematic structural diagram of another 1 embodiment of the present invention;

in the figure: 1. copper ring, 2, ceramic circuit, 3, metal needle, 4, PCB board, 5, copper base plate, 6, shell, 7, routing, 8, through hole, 9, thimble seat.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

As shown in figure 1, the utility model relates to a novel metal needle of control assembly power, including metal needle and connecting seat, during the hole of connecting seat was emboliaed to the lower extreme of metal needle, the jogged joint of PCB board was passed to the upper end of metal needle. As shown in fig. 2 and 3, an installation method of the present invention is: 1. copper ring 1 adopts the tubular product shaping, and metal needle 3 adopts the wire rod shaping, 2, in using, because be the equipment relation, can weld copper ring 1 on DBC ceramic circuit 2 earlier, do routing 7 or insert metal needle 3 or assemble

shell

6, 3, functionally according to the technology demand again, the cooperation relation between copper ring 1 and the metal needle 3 can design wantonly, and the holding power scope is bigger. The holding force between the copper ring 1 and the metal pins 3 can be designed according to the insertion force value of the solder-free terminal and the PCB when the PCB is assembled.

In the installation process, firstly, the ceramic circuit 2 and the copper substrate 5 are bonded, then the copper ring 1 is soldered on the ceramic circuit 2, then the routing 7 is carried out, then the shell 6 is assembled according to the process requirements, or the shell 6 is assembled after the metal pin 3 is inserted, and finally, the PCB 4 is assembled when the product is used.

IEC-60352-5 requires assembly of 3 and 4, so the mating forces of

terminals

3 and 4 designed accordingly may be different. The insertion and retention forces between 1 and 3 are redesigned based on this assembly force. So as to ensure that the terminal 3 has no problem of displacement and the like which affect the assembly when assembling the terminal 4.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. A novel metal needle of control assembly power which characterized in that: the metal needle is sleeved with the connecting seat, the metal needle consists of an upper end, a lower end and a middle connecting rod, the upper end of the metal needle is connected with a hole of the PCB, and the lower end of the metal needle is sleeved with the connecting seat; the bottom of the connecting seat is connected with a ceramic circuit, and the ceramic circuit is fixed on the copper substrate.

2. The novel metal needle for controlling an assembling force according to claim 1, wherein: the lower end of the metal needle is in interference contact with the contact surface of the connecting seat.

3. The novel metal needle for controlling an assembling force according to claim 1, wherein: a shell is arranged on the copper substrate, and through holes corresponding to the metal needles are formed in the shell.

4. The novel metal needle for controlling an assembling force according to claim 1, wherein: the connecting seat is a copper ring or a thimble seat.

5. The novel metal needle for controlling an assembling force according to claim 4, wherein: the structure of the copper ring comprises a first contact end, a second contact end and a hollow contact tube, wherein the hollow contact tube is in a hollow tube shape, and the first contact end and the second contact end are respectively arranged at two ends of the hollow contact tube and are in the same design; the first contact end is provided with a first flange, the first flange and a plane have one or more continuous contact areas, and the first flange divides the first contact end into one or more sections; the second contact end is provided with a second flange, and the second flange is the same as the first flange in structure.

6. The novel metal needle for controlling an assembling force according to claim 5, wherein: the lower end of the metal needle is a circular or polygonal tube, and the cross section of the metal needle is slightly different from the original shape by extruding and deforming the side face.

7. The novel metal needle for controlling an assembling force according to claim 4, wherein: the lower end of the metal needle is provided with a horn blind hole which is matched with the thimble seat.

8. The novel metal needle for controlling an assembling force according to claim 4, wherein: the thimble seat is the turriform.