Mainboard assembly of handheld terminal seat charger

Abstract

The utility model provides a mainboard assembly of a handheld terminal seat charger, and relates to the technical field of mainboards. Comprising a probe assembly which comprises a support and a probe arranged on the support in a penetrating mode; the probe mainboard is arranged on the lower side of the support, probe via holes matched with the probes in a one-to-one correspondence mode are formed in the probe mainboard, and a plurality of first bonding pads are arranged on the two sides of the probe mainboard respectively; the PCB main board is arranged on the lower side of the probe main board, an avoiding through groove is formed in the PCB main board and used for avoiding a probe penetrating through the probe through hole, and second bonding pads in one-to-one correspondence with the first bonding pads are arranged on the PCB main board. The PCB main board is provided with the avoiding through groove, so that the PCB main board can be suitable for handheld terminals of various models, and the PCB main board is matched with the probe assembly and the probe main board of the corresponding model, so that the main board assembly of the corresponding model can be formed.

Description

Technical Field

[0001] The utility model relates to the technical field of mainboards, in particular to a handheld terminal cradle charging mainboard assembly. Background Art

[0002] There are many different models of handheld terminals, so the spacing between the two charging probes in the charging cradle for charging them is also different. The charging probe is located on the probe holder. During installation, the probe holder needs to be fixed to the mainboard, and then the probe is welded to the mainboard, and the pads on the holder are welded to the pads on the mainboard to connect the circuit. At the beginning of the production of the mainboard, the spacing between the corresponding probe vias will be designed according to the model of the corresponding handheld terminal. In other words, each model of handheld terminal will match a unique mainboard model, and the biggest difference between multiple mainboard models is often that the spacing between the two charging probe vias on the mainboard is different. Therefore, multiple models of handheld terminals cannot share a mainboard substrate. Utility Model Content

[0003] The utility model provides a handheld terminal cradle charging mainboard component, which is used to solve the problem that various types of handheld terminals in the prior art cannot share a mainboard substrate.

[0004] The utility model provides a handheld terminal cradle charging mainboard assembly, comprising:

[0005] A probe assembly, comprising a bracket and a probe arranged through the bracket;

[0006] A probe main board is arranged at the lower side of the bracket, the probe main board is provided with probe vias corresponding to the probes one by one, and a plurality of first pads are respectively arranged on both sides of the probe main board;

[0007] The PCB main board is arranged at the lower side of the probe main board, and an avoidance through groove is opened on the PCB main board to avoid the probe passing through the probe via hole. The PCB main board is provided with second pads corresponding to the first pads one by one.

[0008] According to a handheld terminal charging motherboard assembly provided by the utility model, both ends of the bottom of the bracket protrude downward to form a mounting portion, a mounting groove is formed between the two mounting portions, and the probe motherboard is located in the mounting groove.

[0009] According to a handheld terminal charging motherboard assembly provided by the utility model, the probe motherboard is provided with two sides of the first solder pad extending outwards to the outside of the installation groove.

[0010] According to a handheld terminal charging mainboard assembly provided by the utility model, a first positioning assembly is arranged between the bracket and the probe mainboard.

[0011] According to a handheld terminal charger motherboard assembly provided by the utility model, the first positioning assembly includes a first positioning column and a first positioning hole, the first positioning column is arranged in the installation groove of the bracket, the first positioning hole is opened on the probe motherboard, and the first positioning column is adapted to the first positioning hole in a one-to-one correspondence.

[0012] According to a handheld terminal charger motherboard assembly provided by the utility model, two first positioning columns are arranged at one end of the installation slot, and one first positioning column is arranged at the other end.

[0013] According to a handheld terminal charging motherboard assembly provided by the utility model, a second positioning assembly is arranged between the bracket and the PCB motherboard.

[0014] According to a handheld terminal charger motherboard assembly provided by the utility model, the second positioning assembly includes a second positioning column and a second positioning hole, the second positioning column is arranged on the lower end surface of the mounting portion, the second positioning hole is opened on the PCB motherboard, and the second positioning column is adapted to the second positioning hole in a one-to-one correspondence.

[0015] According to a handheld terminal charger motherboard assembly provided by the utility model, the mounting portion is provided with a screw hole for screws to pass through, the screw hole passes through the bracket and the mounting portion, and the PCB motherboard is provided with a screw fastening hole corresponding to the screw hole.

[0016] According to a handheld terminal charging motherboard assembly provided by the utility model, the probe includes a data transmission probe and a charging probe, a plurality of the data transmission probes are provided, and two charging probes are provided, and the two charging probes are respectively located on both sides of the plurality of data transmission probes.

[0017] The handheld terminal charging motherboard assembly provided by the utility model can be applied to various types of handheld terminals by providing an avoidance through slot on the PCB motherboard. The PCB motherboard can be matched with a probe assembly and a probe motherboard of a corresponding type to form a motherboard assembly of a corresponding type. At the same time, the probe assembly and the probe motherboard, and the probe assembly and the PCB motherboard can be quickly positioned and assembled through corresponding positioning assemblies, and the assembly is quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is an exploded view of the handheld terminal charging motherboard assembly provided by the utility model;

[0020] Figure 2 It is a schematic diagram of the handheld terminal charging motherboard assembly provided by the utility model;

[0021] Figure 3 is a schematic diagram of the bottom structure of the probe assembly;

[0022] Figure 4 It is a schematic diagram of the connection structure between the probe assembly and the probe main board.

[0023] Reference numerals:

[0024] 100. probe assembly; 101. bracket; 102. data transmission probe;

[0025] 103, charging probe; 104, mounting portion; 105, mounting groove; 106, first positioning column;

[0026] 107. second positioning column; 108. screw hole;

[0027] 200, probe main board; 201, first pad; 202, data transmission probe via;

[0028] 203, charging probe via hole; 204, first positioning hole;

[0029] 300, PCB main board; 301, avoidance slot; 302, second pad;

[0030] 303, second positioning hole; 304, screw fastening hole. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Combine the following Figure 1-Figure 4 The utility model is described as a handheld terminal charging motherboard assembly, which includes a probe assembly 100, a probe motherboard 200 and a PCB motherboard 300.

[0033] The probe assembly 100 includes a bracket 101 and probes that are arranged on the bracket 101; wherein the probes include a data transmission probe 102 and a charging probe 103, a plurality of data transmission probes 102 are provided, and the plurality of data transmission probes 102 are arranged in the middle of the bracket 101, and two charging probes 103 are provided, and the two charging probes 103 are respectively located on both sides of the plurality of data transmission probes 102.

[0034] The probe main board 200 is arranged on the lower side of the bracket 101, and is provided with probe vias corresponding to the probes one by one. A plurality of first solder pads 201 are respectively provided on both sides of the probe main board 200; wherein the probe vias include data transmission probe vias 202 corresponding to the data transmission probes 102, and charging probe vias 203 corresponding to the charging probes 103.

[0035] The PCB main board 300 is arranged at the lower side of the probe main board 200, and an avoidance slot 301 is provided on the PCB main board 300 to avoid the probe passing through the probe via hole, and a second pad 302 corresponding to the first pad 201 is provided on the PCB main board 300. Generally speaking, the length of the charging probe 103 is relatively long. During assembly, the charging probe 103 will pass through the corresponding probe via hole and be exposed a little bit for welding; therefore, the avoidance slot 301 is mainly for avoiding the charging probe 103; the spacing between the two charging probes 103 corresponding to different models of handheld terminals is different, but the length of the avoidance slot 301 is much greater than the distance between the two charging probes 103 with the largest spacing, therefore, it can be considered that the overall frame structure of the PCB main board 300 is suitable for various models of handheld terminals.

[0036] In this embodiment, further, both ends of the bottom of the bracket 101 protrude downward to form a mounting portion 104, a mounting groove 105 is formed between the two mounting portions 104, the probe main board 200 is located in the mounting groove 105, and the two sides of the probe main board 200 provided with the first pad 201 extend outward to the outside of the mounting groove 105. In other words, the overall shape of the bracket 101 is an n-shaped structure, except that the height of the mounting portion 104 is relatively not that high, the length of the probe main board 200 is consistent with the length of the mounting groove 105, but the width of the probe main board 200 is wider than the width of the mounting groove 105 (i.e., the bracket 101), so as to facilitate the assembly of the probe main board 200 in the mounting groove 105, and at the same time, the two sides of the probe main board 200 extend outward to facilitate the welding operation between the first pad 201 and the second pad 302; when the probe main board 200 is installed in the mounting groove 105, the lower end surface of the probe main board 200 is flush with the lower end surface of the mounting portion 104.

[0037] In this embodiment, a first positioning component is disposed between the bracket 101 and the probe main board 200 to facilitate positioning and assembly between the probe main board 200 and the bracket 101;

[0038] In this embodiment, the first positioning component includes a first positioning column 106 and a first positioning hole 204. The first positioning column 106 is arranged in the installation groove 105 of the bracket 101. The first positioning hole 204 is opened on the probe main board 200. The first positioning column 106 and the first positioning hole 204 are adapted one-to-one.

[0039] Furthermore, two first positioning columns 106 are provided at one end of the installation groove 105, and one first positioning column 106 is provided at the other end; this design is to avoid the left and right ends of the probe main board 200 from being installed upside down. Since the probe main board 200 is also equipped with circuits, the installation positions are specific. The different numbers of first positioning holes 204 at both ends facilitate quick assembly and avoid reverse installation.

[0040] In this embodiment, a second positioning component is provided between the bracket 101 and the PCB main board 300 to facilitate positioning and assembly between the bracket 101 and the PCB main board 300;

[0041] Furthermore, the second positioning assembly includes a second positioning column 107 and a second positioning hole 303. The second positioning column 107 is disposed on the lower end surface of the mounting portion 104. The second positioning hole 303 is provided on the PCB main board 300. The second positioning column 107 is adapted to the second positioning hole 303 in a one-to-one correspondence. The two second positioning columns 107 are not centrally symmetrically distributed relative to the center point of the bracket 101. This design is also to prevent the bracket 101 from being reversely mounted at both ends when it is assembled on the PCB main board 300.

[0042] In this embodiment, a screw hole 108 for screws to pass through is provided on the mounting portion 104 , and the screw hole 108 passes through the bracket 101 and the mounting portion 104 from top to bottom. A screw fastening hole 304 corresponding to the screw hole 108 is provided on the PCB main board 300 .

[0043] During assembly, the probe main board 200 is first assembled on the bracket 101, and then the probes are welded, and the bracket 101 is fixed to the PCB main board 300 with screws, and finally the first pad 201 and the second pad 302 are welded according to the actual circuit connection method to complete the assembly of the entire main board assembly. It is worth mentioning that not all first pads 201 and second pads 302 need to be welded together, and welding can be performed as needed according to actual wiring requirements, which will not be elaborated here.

[0044] The present application provides a avoidance slot 301 on the PCB main board 300, so that the PCB main board 300 can be applied to various types of handheld terminals. The PCB main board 300 can be matched with the corresponding type of probe assembly 100 and probe main board 200 to form a main board assembly of the corresponding type. At the same time, the probe assembly 100 and the probe main board 200, and the probe assembly 100 and the PCB main board 300 can be quickly positioned and assembled through the corresponding positioning assembly, and the assembly is quick.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A handheld terminal charging motherboard assembly, characterized in that: include: A probe assembly, comprising a bracket and a probe arranged through the bracket; A probe main board is arranged at the lower side of the bracket, the probe main board is provided with probe vias corresponding to the probes one by one, and a plurality of first pads are respectively arranged on both sides of the probe main board; The PCB main board is arranged at the lower side of the probe main board, and an avoidance through groove is opened on the PCB main board to avoid the probe passing through the probe via hole. The PCB main board is provided with second pads corresponding to the first pads one by one.

2. The handheld terminal charging motherboard assembly according to claim 1, characterized in that: Both ends of the bottom of the bracket protrude downward to form a mounting portion, a mounting groove is formed between the two mounting portions, and the probe mainboard is located in the mounting groove.

3. The handheld terminal charging motherboard assembly according to claim 2, characterized in that: The probe main board is provided with two sides of the first solder pad extending outwards to outside the mounting groove.

4. The handheld terminal charging motherboard assembly according to claim 2, characterized in that: A first positioning component is arranged between the bracket and the probe main board.

5. The handheld terminal charging motherboard assembly according to claim 4, characterized in that: The first positioning component includes a first positioning column and a first positioning hole. The first positioning column is arranged in the mounting groove of the bracket. The first positioning hole is opened on the probe main board. The first positioning column is adapted to the first positioning hole in a one-to-one correspondence.

6. The handheld terminal charging motherboard assembly according to claim 5, characterized in that: Two first positioning posts are disposed at one end of the installation slot, and one first positioning post is disposed at the other end.

7. The handheld terminal charging motherboard assembly according to claim 2, characterized in that: A second positioning component is arranged between the bracket and the PCB main board.

8. The handheld terminal charging motherboard assembly according to claim 7, characterized in that: The second positioning assembly includes a second positioning column and a second positioning hole, the second positioning column is arranged on the lower end surface of the mounting portion, the second positioning hole is opened on the PCB main board, and the second positioning column is adapted to the second positioning hole in a one-to-one correspondence.

9. The handheld terminal charging motherboard assembly according to claim 2, characterized in that: The mounting portion is provided with a screw hole for the screw to pass through, the screw hole passes through the bracket and the mounting portion, and the PCB main board is provided with a screw fastening hole corresponding to the screw hole.

10. The handheld terminal charging motherboard assembly according to claim 1, characterized in that: The probes include a data transmission probe and a charging probe. A plurality of the data transmission probes are provided, and two charging probes are provided. The two charging probes are respectively located at two sides of the plurality of data transmission probes.

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