CN-224231808-U - Switching tool and voltage test equipment

Abstract

The utility model discloses a transfer jig and voltage testing equipment, which relate to the technical field of voltage measurement, wherein the transfer jig is used for voltage testing of a D-Sub connecting wire and comprises two transfer joints, two dial switches and a voltage testing joint, the two transfer joints are arranged at intervals, each transfer joint comprises a plurality of pins, the pins of the two transfer joints are in one-to-one correspondence and are respectively and electrically connected, each dial switch comprises a plurality of Sub-switches, each Sub-switch is in an opening state and a closing state, one end of each Sub-switch of each dial switch is respectively and electrically connected with one pin of the transfer joint, the voltage testing joint comprises a central part and a shell shielding layer, the other end of each Sub-switch of one dial switch is in short circuit and is electrically connected with the central part, and the other end of each Sub-switch of the other dial switch is in short circuit and is electrically connected with the shell shielding layer. The utility model provides a transfer jig which aims at measuring the voltage between two pins of a D-Sub connecting wire.

Inventors

• PENG SIZUI
• WANG FANG
• SHU YAN

Assignees

• 翔耀电子(深圳)有限公司

Dates

Publication Date

20260512

Application Date

20250411

Claims (10)

1. 1. The utility model provides a switching tool for the voltage test of D-Sub connecting wire, its characterized in that, switching tool includes: The two adapters are arranged at intervals, each adapter comprises a plurality of pins, and the pins of the two adapters are in one-to-one correspondence and are respectively and electrically connected; Two dial switches, each of which comprises a plurality of sub-switches, each of which has an on state and an off state, one end of each of which is respectively electrically connected with one pin of one adapter, and The voltage testing connector comprises a central part and a shell shielding layer, the other ends of a plurality of sub-switches of one dial switch are short-circuited and electrically connected with the central part, and the other ends of a plurality of sub-switches of the other dial switch are short-circuited and electrically connected with the shell shielding layer; One sub-switch of one dial switch is switched to the on state, the other sub-switch of the other dial switch is switched to the on state, the central part of the voltage test connector and the shell shielding layer are respectively used for being electrically connected with a tester so as to measure the voltage between the central part and the shell shielding layer and further measure the voltage between pins corresponding to the two sub-switches.
2. 2. The transfer jig of claim 1, wherein the number of sub-switches of two said dip switches is the same.
3. 3. The transfer jig of claim 2, wherein the number of pins of the adapter is the same as the number of sub-switches of the dial switch, and one pin of each adapter corresponds to one sub-switch of each dial switch one by one.
4. 4. The transfer jig of claim 3, wherein the number of pins of the adapter comprises 9, 15, 25, 37, or 44.
5. 5. The adapter fixture of claim 4, wherein one adapter is a male adapter and the other adapter is a female adapter.
6. 6. The transfer jig of any one of claims 1 to 5, wherein the housing shield layer of the voltage test connector is a non-magnetic material comprising one of beryllium copper, stainless steel, or aluminum alloy.
7. 7. The adapter fixture of any one of claims 1 to 5, further comprising a housing having a first receiving cavity and a second receiving cavity disposed at intervals, wherein two of the adapters are respectively embedded in and partially exposed from two opposite cavity walls of the first receiving cavity, wherein the voltage testing connector is embedded in and partially exposed from another cavity wall of the first receiving cavity, and wherein two of the dial switches are disposed at intervals in the second receiving cavity.
8. 8. The adapter fixture of claim 7, wherein the housing is a non-magnetic material comprising one of beryllium copper, stainless steel, or aluminum alloy.
9. 9. The transfer jig of claim 8, further comprising a PCB board, wherein an avoidance opening is formed in a cavity wall between the first accommodating cavity and the second accommodating cavity, the PCB board is partially disposed in the first accommodating cavity, the rest of the PCB board is disposed in the second accommodating cavity through the avoidance opening, each of the two pins of the adapter and the voltage testing connector are electrically connected with the PCB board, and the two dial switches are electrically connected with the PCB board.
10. 10. A voltage testing apparatus comprising the switching jig according to any one of claims 1 to 9 and a voltage tester, a voltage testing joint of the switching jig being electrically connected to the voltage tester.

Description

Switching tool and voltage test equipment Technical Field The utility model relates to the technical field of voltage measurement, in particular to a switching jig and voltage testing equipment. Background In a nuclear magnetic resonance imaging apparatus, it is often necessary to test the voltage between each pin on the individual D-Sub (D-Subminiature, small D-connector) connection lines. The existing method for measuring the voltage between each pin on the D-Sub connecting line generally needs to additionally connect a connecting line electrically connected with two pins to be measured from the D-Sub connecting line so as to measure the voltage between the two pins, and if the voltage between all any two pins is required to be measured, a plurality of connecting lines need to be connected, so that the structure is complex, and the normal use of the D-Sub connecting line is affected. Disclosure of utility model The utility model mainly aims to provide a switching jig and voltage testing equipment, which aim to measure the voltage between two pins of a D-Sub connecting wire. The utility model provides a transfer jig for testing the voltage of a D-Sub connecting wire, which comprises two transfer joints, two dial switches and a voltage testing joint, wherein the two transfer joints are arranged at intervals, each transfer joint comprises a plurality of pins, the pins of the two transfer joints are in one-to-one correspondence and are respectively and electrically connected, each dial switch comprises a plurality of Sub-switches, each Sub-switch has two states of opening and closing, one end of each Sub-switch of each dial switch is respectively and electrically connected with one pin of one transfer joint, the voltage testing joint comprises a central part and a shell shielding layer, the other end of each Sub-switch of one dial switch is in short circuit and is electrically connected with the central part, and the other end of the Sub-switch of the other dial switch is in short circuit and is electrically connected with the shell shielding layer; One sub-switch of one dial switch is switched to the on state, the other sub-switch of the other dial switch is switched to the on state, the central part of the voltage test connector and the shell shielding layer are respectively used for being electrically connected with a tester so as to measure the voltage between the central part and the shell shielding layer and further measure the voltage between pins corresponding to the two sub-switches. In one embodiment, the number of sub-switches of two said dip switches is the same. In an embodiment, the number of pins of the adapter is the same as the number of sub-switches of the dial switch, and one pin of each adapter corresponds to one sub-switch of each dial switch one by one. In an embodiment, the number of pins of the adapter includes 9, 15, 25, 37 or 44 pins. In an embodiment, one of the adapters is a male adapter and the other adapter is a female adapter. In one embodiment, the housing shield of the voltage test connector is a non-magnetic material, including one of beryllium copper, stainless steel, or aluminum alloy. In an embodiment, the switching fixture further comprises a housing, the housing is provided with a first accommodating cavity and a second accommodating cavity which are arranged at intervals, the two switching heads are respectively embedded and partially exposed on two opposite cavity walls of the first accommodating cavity, the voltage testing head is embedded and partially exposed on the other cavity wall of the first accommodating cavity, and the two dial switches are arranged at intervals in the second accommodating cavity. In one embodiment, the housing is a non-magnetic material including one of beryllium copper, stainless steel, or aluminum alloy. In an embodiment, the switching tool still includes the PCB board, first hold the chamber with the chamber wall between the second holds the chamber has been seted up and has been dodged the mouth, PCB board part is located first hold the chamber, other parts pass dodge the mouth is located the second holds the chamber, two each pin of adapter with voltage test joint all with PCB board electricity is connected, two dial switch with PCB board electricity is connected. The utility model also provides voltage testing equipment which comprises the switching jig and the voltage tester, wherein the voltage testing connector of the switching jig is electrically connected with the voltage tester. According to the technical scheme, the pins of the two adapter are in one-to-one correspondence and are respectively and electrically connected, the sub-switches of the two dial switches are respectively and electrically connected with the pins in one-to-one correspondence, the other end of one of the sub-switches of the dial switch is in short circuit and is electrically connected with the central part of the voltage testing connector, and the other end