All-in-one power test board
By designing an all-in-one power test board, the problem of cumbersome model replacement in traditional testing is solved, and efficient testing with multi-module compatibility is achieved.
Patent Information
- Application Number
- CN202423020041.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Traditional power module testing requires the creation of specific power boards for different module models, which makes the replacement process cumbersome and reduces testing efficiency.
Design an all-in-one power test board, which includes a module connector area and an RF test socket. The pin headers correspond to the pins of different types of modules and are connected by bonding wires to achieve compatible testing of two types of modules.
It simplifies the replacement process, improves testing efficiency, and enables testing of multiple module models without replacing the power board.
Smart Images
Figure CN223611630U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to module test technical field especially relates to a multi -in -one power test board. BACKGROUND
[0002] The application field of the power module is very wide at present, such as the frequency converter in the industrial field, the variable frequency air conditioner, the washing machine and the refrigerator in the household appliance field, the high-speed rail, the subway and the light rail in the rail transit field, the airplane and the warship in the military and aerospace field and the new energy automobile and the wind power generation in the new energy field have very wide application. There are many test items for evaluating whether the application of the power device is suitable, including static, dynamic, reliability and the like.
[0003] The conventional scheme needs to make the power board specially for the test module model when each module needs to be tested dynamically due to the difference of the power module package size and shape, the pin number and position and the pin size, and the power board can only be used in a single module. When multiple models are tested, the power board needs to be replaced, and the power board needs to be replaced, which needs to remove many screws, drive boards, voltage test probes, current probes and the like, and it is very troublesome to replace the power board when multiple modules need to be tested, the steps are complicated, a lot of time is spent, and the test efficiency is reduced. UTILITY MODEL CONTENTS
[0004] In view of the problems in the prior art, the utility model provides a multi-in-one power test board, which comprises:
[0005] A module connector area is arranged at the center of the power board body, a first pin seat group corresponding to a first type module is arranged on the outer ring of the module connector area, and a second pin seat group corresponding to a second type module is arranged on the inner ring of the module connector area.
[0006] A plurality of radio frequency test seats are arranged on the outer side of the module connector area, and each radio frequency test seat is connected with the pin seat in the first pin seat group and the second pin seat group.
[0007] Preferably, the first pin seat group comprises a plurality of first size pin seats arranged at both ends of the outer ring of the module connector area and a plurality of second size pin seats arranged at the edge of the outer ring of the module connector area.
[0008] Each first size pin seat corresponds to each first size pin on the first type module in a one-to-one manner, and each second size pin seat corresponds to each second size pin on the first type module in a one-to-one manner.
[0009] Preferably, the second pin seat group comprises a plurality of third size pin seats arranged at both ends of the inner ring of the module connector area and a plurality of fourth size pin seats arranged at the edge of the inner ring of the module connector area.
[0010] Each of the third size needle seat corresponds to each third size pin provided on the second type module, and each of the fourth size needle seat corresponds to each fourth size pin provided on the second type module.
[0011] Preferably, the same defined needle seat in the first needle seat group and the second needle seat group is connected by a bonding wire.
[0012] Preferably, each of the radio frequency test seats is connected to the needle seat in one of the same defined needle seat groups by a bonding wire.
[0013] Preferably, the power plate body is further provided with a battery terminal, a positive terminal and a negative terminal.
[0014] Preferably, the power plate body is further provided with a U-phase terminal, a V-phase terminal and a W-phase terminal.
[0015] The technical scheme has the following advantages or beneficial effects: the module connector area in the all-in-one power test plate is provided with a first needle seat group corresponding to a first type module, and is further provided with a second needle seat group corresponding to a second type module; the effect of being able to be compatible with two types of modules is achieved; when different types of modules need to be tested, only the module needs to be replaced, the steps are simple, a large amount of time does not need to be spent, and the test efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 A structure schematic view of a traditional first type module installed on a required power plate;
[0017] Figure 2 A structure schematic view of a traditional second type module installed on a required power plate;
[0018] Figure 3 A structure schematic view of a traditional first type module installed on a required power plate after bonding;
[0019] Figure 4 A structure schematic view of a traditional second type module installed on a required power plate after bonding;
[0020] Figure 5 A structure schematic view of a power plate body in a preferred embodiment of the utility model;
[0021] Figure 6 A structure schematic view of a power plate body in a preferred embodiment of the utility model after bonding. DETAILED DESCRIPTION
[0022] The utility model is not limited to the embodiment, and other embodiments can also belong to the scope of the utility model as long as they meet the main idea of the utility model.
[0023] In the preferred embodiment of the utility model, based on the above problems existing in the prior art, a multi-in-one power test board is provided, as shown in the drawings, comprising: Figure 5
[0024] The module connector area 1 is arranged at the center of the power board body 10, the outer ring of the module connector area 1 is provided with a first needle seat group 11 corresponding to the first type module, and the inner ring of the module connector area 1 is provided with a second needle seat group 12 corresponding to the second type module.
[0025] A plurality of radio frequency test seats RF1-RF7 are arranged on the outer side of the module connector area 1, and each radio frequency test seat is connected with a needle seat 100 in the first needle seat group 11 and the second needle seat group 12.
[0026] In the preferred embodiment of the utility model, as shown in the drawings, the first needle seat group 11 comprises a plurality of first size needle seats 101 arranged at both ends of the outer ring of the module connector area 1 and a plurality of second size needle seats 102 arranged at the edge of the outer ring of the module connector area 1. Figure 5
[0027] Each first size needle seat 101 corresponds to each first size pin on the first type module one by one, and each second size needle seat 102 corresponds to each second size pin on the first type module one by one.
[0028] In the preferred embodiment of the utility model, the second needle seat group 12 comprises a plurality of third size needle seats 103 arranged at both ends of the inner ring of the module connector area 1 and a plurality of fourth size needle seats 104 arranged at the edge of the inner ring of the module connector area 1.
[0029] Each third size needle seat 103 corresponds to each third size pin on the second type module one by one, and each fourth size needle seat 104 corresponds to each fourth size pin on the second type module one by one.
[0030] In the preferred embodiment of the utility model, as shown in the drawings, the same defined needle seats in the first needle seat group 11 and the second needle seat group 12 are provided, the same defined needle seats are taken as the same defined needle seat group 200, and are connected through the bonding wire 300. Figure 6 In the preferred embodiment of the utility model, as shown in the drawings, each radio frequency test seat is connected with the needle seat in one group of the same defined needle seat group through the bonding wire.
[0031] Figure 6
[0032] In the preferred embodiment of the utility model, as shown in Figure 5 The power board body 10 is further provided with a battery terminal seat B, a positive terminal seat P and a negative terminal seat N.
[0033] In the preferred embodiment of the utility model, as shown in Figure 5 The power board body 10 is further provided with a U-phase terminal seat, a V-phase terminal seat and a W-phase terminal seat.
[0034] Specifically, as shown in Figure 1 And Figure 2 It is the structure diagram that the two kinds of modules (first type module and second type module) are installed on the power board required respectively, it can be seen that the same number of IGBT elements (U2-U8) are welded on the two kinds of modules, but due to the different packaging size and shape, pin number and position, pin size of the two modules, the size, shape, number and position of the pin seat (the pin on the module is inserted in the pin seat of the power board) arranged on the two power boards are also different.
[0035] Figure 3 For the connection diagram of the bonding wire and copper layer (black block) on the module and power board in Figure 1 , Figure 4 For the connection diagram of the bonding wire and copper layer (black block) on the module and power board in Figure 2 .The power board is provided with a defined pin seat, and each defined pin seat corresponds to an IGBT element on the module, and from Figure 3 And Figure 4 It can be seen that the pin of the IGBT element (U2-U8) is inserted in the corresponding pin seat on the power board through the corresponding pin, and then connected through the pin seat and the radio frequency test seat (RF1-RF7) on the power board, and in Figure 3 And Figure 4 The corresponding relationship between the radio frequency test seat and the IGBT element is RF1-U2, RF2-U3, RF3-U4, RF4-U5, RF5-U6, RF6-U7 and RF7-U8.
[0036] For the above two kinds of modules, the utility model provides a multi-in-one power test board, and the corresponding pin seats of the above two kinds of modules are arranged on the same power board body, as shown in Figure 5 The central region of the power board body is divided into a module insertion area 1, the module insertion area 1 is divided into an inner ring and an outer ring, and a plurality of pin seats are arranged in the inner ring and the outer ring, wherein the shape, size, number and arrangement position of each pin seat in the first pin seat group 11 in the inner ring are the same as the pin seat arranged on the power board in Figure 1 , and the shape, size, number and arrangement position of each pin seat in the second pin seat group 12 in the outer ring are the same as the pin seat arranged on the power board in Figure 1The shape, size, number and setting position of each pin of the module in the first needle seat group 11 are completely corresponding; specifically, the first size needle seat 101 is arranged at both ends and the second size needle seat 102 is arranged at both sides;
[0037] The shape, size, number and setting position of each needle seat in the second needle seat group 12 of the outer ring are the same as those of the needle seat arranged on the power board in the first type module, and the shape, size, number and setting position of each pin of the module in the first type module are completely corresponding; specifically, the third size needle seat 103 is arranged at both ends and the fourth size needle seat 104 is arranged at both sides in the second needle seat group 12; the size of the first size needle seat 101 and the third size needle seat 103 in the embodiment is the same, and the size of the second size needle seat 102 and the fourth size needle seat 104 is the same; the first size needle seat 101, the second size needle seat 102, the third size needle seat 103 and the fourth size needle seat 104 in other embodiments can be the same as each other, can be different from each other, or can all be the same, which is set according to the specific module test requirement. Figure 2 Figure 2 The shape, size, number and setting position of each pin of the module in the first type module are completely corresponding; specifically, the first size needle seat 101 is arranged at both ends and the second size needle seat 102 is arranged at both sides in the first needle seat group 11;
[0038] As shown in Figure 6 As shown in Figure 1 , Figure 2 The power board has a plurality of radio frequency test seats (RF1-RF7); and for the needle seats of the corresponding IGBT elements in the first needle seat group 11 and the second needle seat group 12, the needle seats of the corresponding IGBT elements are connected together as a group through the bonding wire 300, and the needle seats are connected to the corresponding radio frequency test seats, respectively; at this time, whether the module in the first type module is installed on the power board body in the embodiment or the module in the second type module is installed on the power board body in the embodiment, each IGBT element on the module can be connected to the corresponding radio frequency test seat through the corresponding pin and needle seat. In addition, the pins for testing other functions are defined in the first type module and the second type module, and the needle seats corresponding to the pins for the same test function are also bonded together as a group. The effect of being able to compatible with two types of modules is achieved, and when different types of modules need to be tested, only the module needs to be replaced, the steps are simple, a lot of time is not wasted, and the test efficiency is improved. Figure 1 Figure 2 The battery connection seat B, the positive connection seat P and the negative connection seat N, and the U-phase connection seat, the V-phase connection seat and the W-phase connection seat are arranged on the power board body, so that the power board can be connected to the positive and negative poles of the battery and the three-phase line, and the test of other functions can be completed.
[0039] The battery connection seat B, the positive connection seat P and the negative connection seat N, and the U-phase connection seat, the V-phase connection seat and the W-phase connection seat are arranged on the power board body, so that the power board can be connected to the positive and negative poles of the battery and the three-phase line, and the test of other functions can be completed.
[0040] The above merely describes the preferred embodiments of the present application, and is not intended to limit the implementation and protection scope of the present application. For those skilled in the art, it should be understood that any equivalent changes and obvious variations made according to the content of the present application and drawings should be included in the protection scope of the present application.
Claims
1. A multi-combination power test board, characterized in that, The application relates to a power board, comprising: a module connector area arranged in the center of the power board body, wherein an outer ring of the module connector area is provided with a first needle seat group corresponding to a first type of module, and an inner ring of the module connector area is provided with a second needle seat group corresponding to a second type of module; a plurality of radio frequency test seats arranged outside the module connector area, wherein each radio frequency test seat is connected with a needle seat in the first needle seat group and a needle seat in the second needle seat group.
2. The all-in-one power test board of claim 1, wherein, The first needle seat group comprises a plurality of first size needle seats arranged at two ends of the outer ring of the module connector area and a plurality of second size needle seats arranged at the edges of the outer ring of the module connector area; each first size needle seat corresponds to a first size pin on the first type of module, and each second size needle seat corresponds to a second size pin on the first type of module.
3. The all-in-one power test board of claim 1, wherein, The second needle seat group comprises a plurality of third size needle seats arranged at two ends of the inner ring of the module connector area and a plurality of fourth size needle seats arranged at the edges of the inner ring of the module connector area; each third size needle seat corresponds to a third size pin on the second type of module, and each fourth size needle seat corresponds to a fourth size pin on the second type of module.
4. The all-in-one power test board of claim 1, wherein, The first needle seat group and the second needle seat group are provided with needle seats of the same definition, the needle seats of the same definition are taken as the same definition needle seat group, and the same definition needle seat group is connected through a bonding wire.
5. The all-in-one power test board of claim 4, wherein, Each radio frequency test seat is connected with a needle seat in one of the same definition needle seat groups through a bonding wire.
6. The all-in-one power test board of claim 1, wherein, The power board body is further provided with a battery connecting seat, a positive connecting seat and a negative connecting seat.
7. The all-in-one power test board of claim 1, wherein, The power board body is further provided with a U-phase connecting seat, a V-phase connecting seat and a W-phase connecting seat.