CN214150810U - Micro-rectangular electric connector detection tool - Google Patents
Micro-rectangular electric connector detection tool Download PDFInfo
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- CN214150810U CN214150810U CN202023310405.5U CN202023310405U CN214150810U CN 214150810 U CN214150810 U CN 214150810U CN 202023310405 U CN202023310405 U CN 202023310405U CN 214150810 U CN214150810 U CN 214150810U
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Abstract
The utility model discloses a little rectangle electric connector detects frock, include the bottom plate and locate detection instrument mounting panel on the bottom plate, install at least one adapter and/or at least one adapter on the detection instrument mounting panel, still be equipped with connector and switch on the bottom plate. The utility model also discloses a detection method for detecting the electric connector by using the detection tool; the utility model provides a need the drawback of testing one by one when multicore electric connector inspection medium withstand voltage and insulation resistance, improved the economic nature of inspection and testing result's accuracy and authenticity.
Description
Technical Field
The utility model relates to an electric connector technical field, especially a little rectangle electric connector detects frock.
Background
The method for measuring the dielectric withstand voltage of the connector specified by the national standard comprises the following steps: the test voltage of the connector is applied between the nearest spaced contacts and between the connector housing and the contact nearest the housing; the national standard specifies a method for measuring the dielectric insulation resistance of a connector by measuring the insulation resistance of the connector between the contacts that are closest in distance and between the connector housing and the contact that is closest to the housing.
Taking a 9-core electric connector as an example, as shown in fig. 1, fig. 1 is a schematic diagram of arrangement of contact elements of the 9-core electric connector, and ((c) (), (c) ((c)) in fig. 1 represents each contact pair of the 9-core electric connector, wherein the contact pair with the closest distance between the poles is as follows: (III), (IV), (V), (; the first, the second, the third and the fourth, wherein the value of A represents the distance between them; sixthly, seventhly and sixthly, wherein the value of B represents the distance between the two components; there are 11 combinations; and the closest pole to shell spacing is the closest distance between their own outer diameter and the housing, respectively, where the value of C represents the contact to housing spacing.
At present, the voltage resistance and the insulating property of the high-density multi-core miniature electric connector are still detected in a single-core one-by-one inspection mode. The detection method has long time consumption, large workload and high fatigue strength of workers. The conditions of missed detection and repeated detection are easy to occur in the detection process, so that the data of the product during detection is not accurate and real enough; particularly, when the number of the contacts of the electric connector is more than 30, the detection becomes very uneconomical and has high error probability, and the detection accuracy is reduced.
In summary, the conventional detection method has the following disadvantages:
1. the multi-core electric connector has the problems of missing detection and repeated detection in the detection process, so that the accuracy and the authenticity of the detection result are reduced;
2. the multi-core electrical connector takes longer inspection time and has low efficiency; the labor intensity of workers is high;
3. the multi-core electric connector is not economical in the inspection process, more in human resources and high in time cost.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model aims at providing a little rectangle electric connector detects frock, the utility model provides a multicore electric connector need test one by one when examining medium withstand voltage and insulation resistance's drawback, improved the economic nature of inspection and the accuracy and the authenticity of testing result.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a little rectangle electric connector detects frock, includes the bottom plate and locates detection instrument mounting panel on the bottom plate, install at least one adapter and/or at least one adapter on the detection instrument mounting panel, still be equipped with connector and switch on the bottom plate.
As a further improvement, the wire connector is a quick spring pressing type four-position wire connector, and the switch is a double-pole double-throw switch.
As a further improvement of the utility model, the detection tool mounting plate is vertically installed through the locking screw on the bottom plate.
As a further improvement of the utility model, adapter and/or adapter pass through the cross pan head screw install detect on the instrument mounting panel.
As a further improvement of the utility model, the bottom plate is made by organic glass PMMA, the detection instrument mounting panel is made by the aluminum alloy.
The utility model also provides a detection method for detecting the electric connector by utilizing the detection tool, which comprises the steps of detecting the medium withstand voltage and the insulation resistance between the poles of the contact element of the electric connector and the shell of the electric connector; the detection method specifically comprises the following steps:
sequentially staggering and separating the contact elements of each row of the upper contact element and the lower contact element of the adapter and/or the adapter and then connecting the contact elements to the same node, so that the contact elements on each adapter or adapter form four nodes, and the four nodes are connected to the switch through the wire connectors;
when the medium withstand voltage and the insulation resistance between the poles of the contact pieces of the electric connector are detected, two output ports of the switch are connected to electric connector detection equipment, at least two nodes in the four nodes are sequentially selected to be connected to the electric connector detection equipment through the switch, and therefore the medium withstand voltage and the insulation resistance between the poles of all the contact pieces of the electric connector are detected;
when the medium withstand voltage and the insulation resistance between the poles of the contact of the electric connector and the shell of the electric connector are detected, two output ports of the switch are connected to form a node, and then at least one node of the four nodes formed by the contact and the node formed by the two output ports of the switch are sequentially selected to be connected to the connector detection equipment, so that the medium withstand voltage and the insulation resistance between the poles of all the contacts of the electric connector and the shell of the electric connector are detected.
The utility model has the advantages that:
the utility model discloses a plug detects the design that frock and socket detected the frock, very big process and the time that has shortened the product inspection, when carrying out insulation resistance and medium withstand voltage and examining, have greatly improved work efficiency for the accuracy that detects also greatly improves. The method has the advantages that the method is improved from one hour for detecting a single product to about 2 minutes for detecting the single product, and the interchange detection of the product is also detected in the detection process of the electrical property, so that the time for independently performing the interchange detection is saved. In the later product inspection process, the inspection cost of the product is greatly reduced.
Drawings
FIG. 1 is a schematic view of a contact arrangement for a 9-core electrical connector;
fig. 2 is a schematic structural diagram of a detection tool in an embodiment of the present invention;
FIG. 3 is a schematic diagram of a parallel circuit;
fig. 4 is a schematic wiring diagram of the detection tool in the embodiment of the present invention;
fig. 5 is an equivalent circuit schematic diagram of a wiring schematic diagram of the detection tool of fig. 4.
Reference numerals: 1. the bottom plate, 2, detection instrument mounting panel, 3, adapter, 4, adapter, 5, connector, 6, switch.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
As shown in fig. 2, the micro-rectangular electric connector detection tool comprises a base plate 1 and a detection tool mounting plate 2 arranged on the base plate 1, wherein at least one adapter 3 and/or at least one adapter 4 are/is arranged on the detection tool mounting plate 2, and a wire connector 5 and a switch 6 are further arranged on the base plate. The wire connector 5 is a quick spring pressing type four-position wire connector, and the switch 6 is a double-pole double-throw switch. The detection tool mounting plate 2 is vertically mounted on the bottom plate 1 through a locking screw. The adapter 3 and/or the adapter 4 are/is installed on the detection tool mounting plate 2 through a cross pan head screw. The bottom plate 1 is made of organic glass PMMA, and the detection tool mounting plate 2 is made of aluminum alloy.
In this embodiment, the detection tool mounting plate 2 and the bottom plate 1 are vertically mounted on the bottom plate 1 by locking screws. The adapter 4 is locked and installed on the detection tool mounting plate 2 through two cross pan head screws; the adapter 3 is locked and installed on the detection tool installation plate 2 through two cross pan head screws; the quick spring pressing type four-position wire connector is locked on the bottom plate 1 through a cross-shaped groove pan head screw; the double-pole double-throw switch (J23034) is locked on the bottom plate through three cross-recessed pan head screws.
The bottom plate 1 is made of organic glass PMMA with good insulating property, and the material has good processing property and dimensional stability. The high dielectric constant and good insulating property can ensure the personal safety of operators in detecting the insulation resistance and the dielectric withstand voltage. (the voltage of 500V + -50V is needed for detecting the insulation resistance, and the voltage of 1000V + -50V is needed for detecting the dielectric withstand voltage).
The detection tool mounting plate 2 is made of aluminum alloy (2A12-T4) which meets the national standard GB/T3191-1998. The material has the characteristics that: the high-strength and light-weight composite material has the advantages of high strength, light weight, certain heat resistance, remarkable comprehensive mechanical property, excellent machining property, high economy and excellent conductivity.
The quick spring pressing type four-position wire connector, the double-pole double-throw switch (J23034) and the cross-slot pan head screw are all standard parts, so that the manufacturing cost is reduced.
The embodiment also provides a method for detecting the electric connector by using the detection tool, which includes detecting the dielectric withstand voltage and the insulation resistance between the poles of the contact piece of the electric connector, and detecting the dielectric withstand voltage and the insulation resistance between the poles of the contact piece of the electric connector and the shell of the electric connector; the detection method specifically comprises the following steps:
sequentially staggering and separating the contact elements of each row of the upper contact element and the lower contact element of the adapter and/or the adapter and then connecting the contact elements to the same node, so that the contact elements on each adapter or adapter form four nodes, and the four nodes are connected to the switch through the wire connectors;
when the medium withstand voltage and the insulation resistance between the poles of the contact pieces of the electric connector are detected, two output ports of the switch are connected to electric connector detection equipment, at least two nodes in the four nodes are sequentially selected to be connected to the electric connector detection equipment through the switch, and therefore the medium withstand voltage and the insulation resistance between the poles of all the contact pieces of the electric connector are detected;
when the medium withstand voltage and the insulation resistance between the poles of the contact of the electric connector and the shell of the electric connector are detected, two output ports of the switch are connected to form a node, and then at least one node of the four nodes formed by the contact and the node formed by the two output ports of the switch are sequentially selected to be connected to the connector detection equipment, so that the medium withstand voltage and the insulation resistance between the poles of all the contacts of the electric connector and the shell of the electric connector are detected.
As shown in fig. 3, fig. 3 is a schematic diagram of a parallel circuit in which the sum of the currents of the branches is equal to the total current; the voltage of each branch is equal to the power supply voltage, i.e. I is equal to I1+I2+I3+Ii，U＝U1＝U2＝U3＝Ui。
According to the principle of the parallel circuit, the following description will be made on the detection principle of the present embodiment by taking a 9-core adapter or a 9-core adapter as an example:
socket detects the supporting quantity of instrument: the quick spring push type four-position wire connector comprises 2 quick spring push type four-position wire connectors, 1 double-pole double-throw switch (J23034) and 4 adapters (more connectors can be used according to requirements).
As shown in fig. 4, the adapter 1)) node, the 3)) node are respectively connected with the hole position 3) and the hole position 4) of the quick spring pressing type four-bit wire presser II, and the adapter 2)) node, the 4)) node are respectively connected with the hole position 3) and the hole position 4) of the quick spring pressing type four-bit wire presser I; the hole site 1 and the hole site 2 of the quick spring pressing type four-position wire pressing device II are respectively connected with the wiring terminal (5) and the wiring terminal (6) of the double-pole double-throw switch (J23034), and the hole site 1 and the hole site 2 of the quick spring pressing type four-position wire pressing device I are respectively connected with the wiring terminal (2) (3) and the wiring terminal (1 (4) of the double-pole double-throw switch and the wiring mode of the adapter is the same.
When the socket detection tool is used, the insulation resistance and medium voltage resistance between the pole and the interelectrode are detected, the output end of the electric connector detection equipment is respectively connected with the (5 binding post and the (6 binding post) of the double-pole double-throw switch, when the double-pole double-throw switch is closed at the (1 binding post and the (2 binding post), the insulation resistance or medium voltage resistance between the pole and the pole between the (1) and the (2) row of the socket is detected, when the double-pole double-throw switch is closed at the (3 binding post and the (4) binding post, the insulation resistance or medium voltage resistance between the pole and the (iv) of the socket is detected, and when the double-pole double-throw switch is in the middle position, a circuit is disconnected.
When the insulation resistance or medium withstand voltage of the socket pole and the shell is detected, one end of the output end of the electric connector detection equipment is connected with a (5 binding post and a (6 binding post) of the double-pole double-throw switch, and the other end of the output end of the electric connector detection equipment is connected with the shell of the adapter or a detection tool mounting plate, when the double-pole double-throw switch is closed at the (1 binding post and the (2 binding post), the insulation resistance or medium withstand voltage between the poles of the first row of the socket and the shell is detected, when the double-pole double-throw switch is closed at the (3 binding post and the (4 binding post), the insulation resistance or medium withstand voltage between the poles of the second row of the socket and the double-pole double-throw switch is detected, and when the double-pole double-throw switch is in the middle position, the circuit is disconnected.
As shown in fig. 5, fig. 5 is an equivalent circuit schematic diagram of a wiring schematic diagram of the detection tool shown in fig. 4, when detecting the insulation resistance and the dielectric withstand voltage between the electrodes, the positive and negative electrodes of the output end of the electric connector detection device are respectively connected with the positive and negative electrodes of the tool, when the switch is closed at the positions 1) and 2), the insulation resistance and the dielectric withstand voltage between the node 2, the node 4 and the node 3 are measured, and when the switch is closed at the positions 3) and 4), the insulation resistance and the dielectric withstand voltage between the node 1, the node 3 and the node 4 are tested.
When the insulation resistance or the medium voltage resistance of the socket electrode and the shell is detected, the anode and the cathode of the tool are screwed together, the cathode of the output end of the electric connector detection equipment is connected with the testing end of the shell, the anode of the electric connector detection equipment is connected with the position node of the screwed together anode and cathode of the tool, the switches are respectively closed at the positions 1), 2) and 3) and 4), and the test is finished.
The test principle is as follows:
measuring the dielectric withstand voltage:
when the node 1 and the node 4 are electrified, the hole site 1 is connected with the hole site 3 in parallel, the hole site 2 is connected with the hole site 4 in parallel, the voltages of the hole site 1, the hole site 3, the hole site 2 and the hole site 4 are equal according to the basic principle of parallel electric connection shunt isobaric, and as a test circuit does not form a passage, current cannot be formed in the measuring process, and only leakage current can be generated due to imperfect insulation of a product. The product has the advantages that the insulating material is fixed, the resistivity and the resistance in unit volume are equal, the larger the distance is, the larger the resistance is, the smaller the generated leakage current is, the higher the voltage can be born, when the input voltage is fixed, the resistance between the hole site 1 and the hole site 2 is smaller than the resistance between the hole site 1 and the hole site 3, so that the weak point exists between the hole site 1 and the hole site 2 during testing, and the voltage between the hole site 1 and the hole site 3 is tested during testing but not the weak point. Therefore, the requirements of insulation resistance and dielectric withstand voltage between the contacts with the nearest detection distance in national standard detection are met.
Measuring insulation resistance:
in the process of testing the insulation resistance, if the leakage current and the voltage are detected, the detected leakage current is converted into the insulation resistance value. Therefore, the leakage current generated between the contact pair of the hole site 1 and the hole site 2 due to imperfect insulation is constant, and the leakage current generated between the hole site 1 and the hole site 3 is 2 times of the leakage current generated between the hole site 1 and the hole site 2. In the testing process, because the input voltage is constant, whether the input voltage is qualified or not is judged and the reference is the magnitude of the leakage current, and the smaller the leakage current is, the better the leakage current is. The leakage current generated by the test tool when the withstand voltage is detected is the sum of each contact pair during independent test, and the test tool is equivalent to a tightening examination during the test process. That is, the longer the distance, the more leakage current is generated, the larger the leakage current value is formed, and the smaller the insulation resistance value is measured. The specifications for detecting the insulation resistance and dielectric withstand voltage between the connector housing and the contact closest to the housing in international inspection are satisfied.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (5)
1. The utility model provides a little rectangle electric connector detects frock, its characterized in that includes the bottom plate and locates detection instrument mounting panel on the bottom plate, install at least one adapter and/or at least one adapter on the detection instrument mounting panel, still be equipped with connector and switch on the bottom plate.
2. The micro-rectangular electrical connector detection tool according to claim 1, wherein the wire connector is a quick spring pressing type four-position wire connector, and the switch is a double-pole double-throw switch.
3. The micro-rectangular electrical connector detection tool according to claim 1, wherein the detection tool mounting plate is vertically mounted on the bottom plate through a locking screw.
4. The micro-rectangular electrical connector detection tool of claim 1, wherein the adapter and/or the adapter are mounted on the detection tool mounting plate by a cross pan head screw.
5. The micro-rectangular electrical connector detection tool of claim 1, wherein the bottom plate is made of organic glass (PMMA), and the detection tool mounting plate is made of aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023310405.5U CN214150810U (en) | 2020-12-30 | 2020-12-30 | Micro-rectangular electric connector detection tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023310405.5U CN214150810U (en) | 2020-12-30 | 2020-12-30 | Micro-rectangular electric connector detection tool |
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| CN214150810U true CN214150810U (en) | 2021-09-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112782435A (en) * | 2020-12-30 | 2021-05-11 | 绵阳市金华洋电器制造有限公司 | Micro-rectangular electric connector detection tool and detection method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112782435A (en) * | 2020-12-30 | 2021-05-11 | 绵阳市金华洋电器制造有限公司 | Micro-rectangular electric connector detection tool and detection method thereof |
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