CN215299603U

CN215299603U - Base structure

Info

Publication number: CN215299603U
Application number: CN202121841231.7U
Authority: CN
Inventors: 钱宁; 陈浏英
Original assignee: Autonics Electronic Jiaxing Co ltd
Current assignee: Autonics Electronic Jiaxing Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2021-12-24
Anticipated expiration: 2031-08-09

Abstract

The utility model provides a base structure, a serial communication port, include: a base, one side of which is provided with a central convex column; a plurality of pin needles arranged around the central convex column; and the circuit board is arranged on the other side of the base opposite to the central convex column, one end of the pin needle is electrically connected with the circuit board, a first electric isolation unit is arranged on the circuit board, and the circuit board is adjacent to the pin needles and is provided with two groups, the first electric isolation unit is arranged between the pin needles, so that the adjacent two groups of the pin needles are arranged on the circuit board, and the creepage distance of the pin needles is greater than 5 mm.

Description

Base structure

Technical Field

The utility model relates to a base structure is applicable to the relevant technical field of time-recorder.

Background

The existing 8-pin socket installation type device comprises a base, a circuit board and 8 pin pins, wherein the pin pins penetrate through the base and are connected with the circuit board. The existing 8-pin socket mount type device has the following disadvantages: the distance between the pin needles is fixed, the distance between the adjacent pin needles is the creepage distance of the adjacent pin needles on the circuit board, and the creepage distance is relatively small, so that potential safety hazards are caused; after the pin needle passes through the base, it is comparatively inconvenient with the location cooperation of circuit board, influences assembly efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a base structure that structural design is reasonable.

The embodiment of the utility model provides a solve the technical scheme that above-mentioned problem adopted and be: a base structure, comprising:

a base, one side of which is provided with a central convex column;

a plurality of pin needles arranged around the central convex column; and

the circuit board, it set up in the opposite side of the relative central projection of base, pin needle one end electric connection in the circuit board, be provided with first electric isolation unit on the circuit board, adjacent two sets of dispose between the pin needle first electric isolation unit, so that adjacent two sets of the pin needle in creepage distance on the circuit board is greater than 5 mm.

The embodiment of the utility model provides a first electrical isolation unit includes the through-hole, on the circuit board in adjacent two sets of position between the pin needle sets up the through-hole.

The embodiment of the utility model provides a through-hole is the long circle, just the major axis of through-hole sets up along the radial extension of central projection.

The embodiment of the utility model provides a pin needle's axle center with the axle center of through-hole extremely the distance in the axle center of center projection is the same.

The embodiment of the utility model provides a pin needle passes the base, be provided with second electrical isolation unit on the base, it is adjacent two sets of dispose between the pin needle unit is kept apart to the second electricity, so that it is adjacent two sets of the pin needle in creepage distance on the base is greater than 2.1 mm.

The embodiment of the utility model provides a second electrical isolation unit includes the bead, the bead is protruding to be located the surface of base one side.

The embodiment of the utility model provides an adjacent two sets of pin needle in creepage distance on the base accords with following formula

2a+b≥2.1；

Wherein a is the height of the rib and b is the width of the rib.

The embodiment of the utility model provides a still include the positioning unit, the positioning unit includes first positioning unit and second positioning unit, wherein, first positioning unit set up in on the base, the second positioning unit set up in on the circuit board, first positioning unit with the cooperation of second positioning unit.

The embodiment of the utility model provides a first positioning unit includes the reference column, second positioning unit includes the location breach.

The embodiment of the utility model provides a be provided with the convex part on the base, be provided with the hole on the convex part, pin needle passes from the hole, the circuit board with the base is close to the terminal surface of one side of circuit board has the clearance, the convex part holding in the clearance.

Compared with the prior art, the utility model, have following one or more advantage or effect: the structure is simple, and the design is reasonable; the first electric isolation unit is arranged between the two adjacent groups of pin needles, so that the creepage distance of the two adjacent groups of pin needles on the circuit board is larger than 5mm, and the safety in use can be ensured; through the arrangement of the through holes on the circuit board, when the creepage distance between two adjacent groups of pin needles is calculated, the through holes need to be bypassed, so that the creepage distance is increased, and in addition, through the arrangement of the through holes, the convection heat dissipation effect can be realized, so that the heat dissipation of a heating element between the base and the circuit board is facilitated; the second electric isolation unit is configured between the two adjacent groups of pin needles, so that the creepage distance of the two adjacent groups of pin needles on the base is larger than 2.1mm, and the safety in use is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is an exploded schematic view of a base structure in an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional structural diagram of a base structure in an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional structural diagram of a base structure in an embodiment of the present invention.

Fig. 4 is an enlarged view at a in fig. 3.

Fig. 5 is a front view of the circuit board and pin fitting.

Fig. 6 is a schematic perspective view of the circuit board and pin needle.

Fig. 7 is a perspective view of the base engaging with the pin.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. The following directions such as "axial direction", "above", "below", etc. are all for showing the structural position relationship more clearly, and are not limiting to the present invention. In the present invention, the terms "vertical", "horizontal" and "parallel" are defined as: including ± 10% of cases based on the standard definition. For example, vertical generally refers to an angle of 90 degrees relative to a reference line, but in the present invention, vertical refers to a situation within 80 to 100 degrees inclusive.

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Referring to fig. 1 to 7, the base structure of the present embodiment includes a base 1, a pin 2, and a circuit board 3.

The base 1 in this embodiment has a central boss 11 formed at one side thereof.

The pin needle 2 in this embodiment is provided with a plurality of pins, and the plurality of pins 2 are arranged around the central boss 11. A plurality of pin needles 2 may be uniformly arranged around the central boss 11. In some embodiments, the number of pin needles 2 is set to 8 groups. In some embodiments, the number of pin needles 2 is set to 11 groups.

The circuit board 3 in this embodiment, it sets up in the opposite side of the relative central projection 11 of base 1, pin 2 one end electric connection in circuit board 3, be provided with first electrical isolation unit 31 on the circuit board 3, adjacent two sets of dispose between pin 2 first electrical isolation unit 31 to make adjacent two sets of pin 2 in creepage distance on circuit board 3 is greater than 5mm, in order to ensure the security when using.

The circuit board 3 in this embodiment can be provided with a positioning hole 32, one end of the pin 2 is inserted into the positioning hole 32 for positioning and matching, and the pin 2 and the circuit board 3 can be fixed by welding, thereby realizing electrical connection. The pin needle 2 is provided with a step which can be supported on the circuit board 3 to play a limiting role.

In this embodiment, the first electrical isolation unit 31 includes a through hole 311, and the through hole 311 is disposed on the circuit board 3 at a position between two adjacent groups of the pin needles 2. Through set up through-hole 311 on circuit board 3, when calculating the creepage distance between two sets of adjacent pin 2, need bypass through-hole 311 to make creepage distance increase. In addition, through the arrangement of the through holes 311, a convection heat dissipation effect can be achieved, so that heat dissipation of the heating element between the base 1 and the circuit board 3 is facilitated.

In this embodiment, the through hole 311 is oblong, and a long axis of the through hole 311 extends along the radial direction of the central boss 11.

In this embodiment, the distance from the axis of the pin 2 to the axis of the central boss 11 is the same as the distance from the axis of the through hole 311, so as to ensure that the creepage distance of the two adjacent groups of pin 2 on the circuit board 3 is maximized.

This embodiment pin needle 2 passes base 1, be provided with second electrical isolation unit 12 on base 1, adjacent two sets of the configuration between pin needle 2 second electrical isolation unit 12 to make adjacent two sets of pin needle 2 in creepage distance on the base 1 is greater than 2.1mm, in order to ensure the security during the use.

In this embodiment, the second electrical isolation unit 12 includes a rib 121, and the rib 121 is protruded from a surface of one side of the base 1. The cross-sectional shape of the rib 121 may be square. The rib 121 is used as the second electrical isolation unit 12, which has a simple structure and can increase the structural strength of the base 1.

In this embodiment, the creepage distance of the two adjacent groups of pin needles 2 on the base 1 meets the following formula

2a+b≥2.1；

Where a is the height of the rib 121, and b is the width of the rib 121.

The embodiment further includes a positioning unit 4, wherein the positioning unit 4 includes a first positioning unit 41 and a second positioning unit 42, wherein the first positioning unit 41 is disposed on the base 1, the second positioning unit 42 is disposed on the circuit board 3, and the first positioning unit 41 is matched with the second positioning unit 42.

In this embodiment, the first positioning unit 41 includes a positioning column, and the second positioning unit 42 includes a positioning notch. Thereby positioning the circuit board 3 on the base 1.

In this embodiment, the base 1 is provided with a convex portion 13, the convex portion 13 is provided with a hole, the pin 2 passes through the hole, a gap 101 is formed between the circuit board 3 and an end surface of the base 1 near the circuit board 3, and the convex portion 13 is accommodated in the gap 101. The provision of the convex portion 13 can improve the stability of positioning of the pin 2 and improve the creepage distance. In this embodiment, the creepage distance of the side of the base 1 having the positioning convex column 11 of the two adjacent groups of pin needles 2 is smaller than the creepage distance of the side of the base 1 having the convex portion 13 of the two adjacent groups of pin needles 2, so that when the creepage distance of the two adjacent groups of pin needles 2 on the base 1 is calculated, the creepage distance of the side of the base 1 having the positioning convex column 11 of the two adjacent groups of pin needles 2 is calculated.

The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A base structure, comprising:

a base, one side of which is provided with a central convex column;

a plurality of pin needles arranged around the central convex column; and

2. The base structure of claim 1, wherein: the first electric isolation unit comprises a through hole, and the through hole is formed in the position, between the two adjacent groups of pin needles, on the circuit board.

3. The base structure of claim 2, wherein: the through hole is oblong, and the long axis of the through hole extends along the radial direction of the central convex column.

4. A base structure as claimed in claim 3, wherein: the distance from the axis of the pin needle to the axis of the central convex column is the same as that from the axis of the through hole.

5. The base structure of claim 1, wherein: the pin needle passes the base, be provided with the second electrical isolation unit on the base, adjacent two sets of dispose between the pin needle the second electrical isolation unit to make adjacent two sets of the pin needle in creepage distance on the base is greater than 2.1 mm.

6. The base structure of claim 5, wherein: the second electrical isolation unit comprises a rib which is arranged on the surface of one side of the base in a protruding mode.

7. The base structure of claim 6, wherein: the creepage distance of the two adjacent groups of the pin needles on the base conforms to the following formula

2a+b≥2.1；

Wherein a is the height of the rib and b is the width of the rib.

8. The base structure of claim 1, wherein: the positioning unit comprises a first positioning unit and a second positioning unit, wherein the first positioning unit is arranged on the base, the second positioning unit is arranged on the circuit board, and the first positioning unit is matched with the second positioning unit.

9. The base structure of claim 8, wherein: the first positioning unit comprises a positioning column, and the second positioning unit comprises a positioning notch.

10. The base structure of claim 1, wherein: the base is provided with a convex part, the convex part is provided with a hole, the pin needle penetrates through the hole, a gap is formed between the circuit board and the end face of one side, close to the circuit board, of the base, and the convex part is contained in the gap.