阅读说明：本技术 一种连接器检测装置 (Connector detection device ) 是由 陶红杰 周天翔 姜慧龙 贾晓勇 陈宇阳 侯强 于 2020-08-07 设计创作，主要内容包括：一种连接器检测装置,装置包括机座、检测卡片以及多个插针筒。机座设有插槽,机座的主体上设有多个插孔,插孔从机座的前表面延伸至插槽。检测卡片可插入插槽,检测卡片上设有与待检测的连接器的标准插针图案一致的标记图案。插针筒可插入插孔,插针筒包括筒体、插头、二级触点和一级触点,筒体具有接收插针的第一空腔,插头在插针顶推作用下带动二级触点和一级触点沿插孔朝向检测卡片移动。本发明的连接器检测装置通过机械印记矫正,对连接器插针配线点位错误、插接松脱等状态给予直观判断,避免了既有模式下对连接器通电检测,因点位虚接、错接造成的设备烧损。(A connector detection device comprises a base, a detection card and a plurality of needle inserting cylinders. The base is provided with a slot, a plurality of jacks are arranged on the main body of the base, and the jacks extend to the slot from the front surface of the base. The detection card can be inserted into the slot, and a mark pattern which is consistent with the standard pin pattern of the connector to be detected is arranged on the detection card. The pin barrel can be inserted into the jack and comprises a barrel body, a plug, a secondary contact and a primary contact, the barrel body is provided with a first cavity for receiving the pin, and the plug drives the secondary contact and the primary contact to move towards the detection card along the jack under the pushing action of the pin. The connector detection device provided by the invention visually judges states of a connector pin distribution point error, insertion looseness and the like through mechanical mark correction, and avoids equipment burning loss caused by point position virtual connection and wrong connection due to power-on detection of the connector in the existing mode.)

1. A connector testing apparatus, the apparatus comprising:

the motor comprises a base, a plurality of connecting rods and a plurality of clamping grooves, wherein the base is provided with a slot, a main body of the base is provided with a plurality of jacks, and the jacks extend to the slot from the front surface of the base;

the detection card can be inserted into the slot, and a mark pattern which is consistent with a standard contact pin pattern of the connector to be detected is arranged on the detection card;

a plurality of needle tubes, a needle tube can insert the jack, a needle tube includes barrel, plug, second grade contact and one-level contact, the barrel has the first cavity of receiving the contact pin, the plug is in contact pin top pushes away and drives down the second grade contact with the one-level contact is followed the jack orientation detect the card and remove.

2. The connector inspection device according to claim 1, wherein the insertion slot is located at a rear portion of the housing and is disposed in a plane perpendicular to an insertion direction of the insertion cylinder.

3. The connector test device of claim 1, wherein a ratio of a distance between a rear end of the primary contact and the test card to a distance between a rear end of the secondary contact and the test card in an inoperative state is 2-3: 4.

4. The connector testing device of claim 1, wherein the barrel is located at the foremost end, the length of the barrel is smaller than that of the exposed portion of the standard contact pin, the outer periphery of the barrel is provided with a radially extending outer edge of the barrel, and the inner wall of the insertion hole is provided with an insertion hole limiting flange matched with the outer edge of the barrel.

5. The connector testing device of claim 4, wherein said cartridge further comprises a base, a front end of said plug is inserted into said first cavity of said barrel, said base is located at a rear end of said plug, said secondary contact is fixedly attached to a rear side of said base, and said secondary contact has a second cavity, said primary contact is at least partially received in said second cavity and is resiliently supported on said secondary contact or said base.

6. Connector testing device according to claim 4 or 5, characterized in that the resilient support is realized as a spring.

7. The connector inspection device of claim 4, wherein the rear end faces of the primary and secondary contacts are provided with a pigment and the pigment of the rear end face of the primary contact has a color different from the color of the pigment of the rear end face of the secondary contact.

8. The connector test device of claim 5, wherein the peripheral wall near the front end of the plug is provided with a radially extending plug end edge that is supported on the rear end wall of the barrel by an elastic member.

9. The connector test device of claim 1, wherein the pattern of indicia of the test card includes a shadow fill pattern and a no fill pattern.

10. The connector test device of claim 9, wherein the shadow-fill pattern corresponds to a connector pin-on location and the no-fill pattern corresponds to a connector pin-off location.

Technical Field

The invention relates to the field of connector detection, in particular to a connector detection device which is used for detecting whether a pin of a connector has a problem or not.

Background

The equipment on the locomotive is connected and communicated through the connector and the wiring, and whether the wiring of the connector pins is correct or not is checked through a ground socket test bench or a locomotive low-voltage action function test usually after the locomotive is assembled.

After the locomotive assembly is completed, the connector on the locomotive is connected with a ground test bed through a process plug, whether a corresponding contact pin is installed at a related point position or not is checked through electrification, and the display is realized through an indicator lamp. Or the locomotive low-voltage action function test is adopted to check the wiring of the contact pins of the connector, and after the locomotive is assembled, the low-voltage action test is used to check whether the functions of all equipment of the locomotive are correct, so as to judge the wiring position.

However, the ground test bed is bulky and is not convenient for convenient inspection on the locomotive and during the assembly process. In addition, if the inner point of the connector is in virtual connection, the function is still possible to be normal during the action test, the potential fault cannot be judged, and the ground test bed and the locomotive action test cannot detect the point of the connector which is not in place in the insertion. Moreover, when the connector is electrically connected, the device may be burnt due to the point connection and the wrong connection.

Disclosure of Invention

In view of the above problems, the present invention provides a connector inspection apparatus. The device can be used in the assembling process, and is very convenient.

According to an aspect of the present invention, there is provided a connector inspection apparatus, the apparatus including:

the motor comprises a base, a plurality of connecting rods and a plurality of clamping grooves, wherein the base is provided with a slot, a main body of the base is provided with a plurality of jacks, and the jacks extend to the slot from the front surface of the base;

the detection card can be inserted into the slot, and a mark pattern which is consistent with a standard contact pin pattern of the connector to be detected is arranged on the detection card;

a plurality of needle tubes, a needle tube can insert the jack, a needle tube includes barrel, plug, second grade contact and one-level contact, the barrel has the first cavity of receiving the contact pin, the plug is in contact pin top pushes away and drives down the second grade contact with the one-level contact is followed the jack orientation detect the card and remove.

According to one embodiment of the invention, the insertion slot is arranged in a plane perpendicular to the insertion direction of the insertion cylinder.

According to one embodiment of the invention, the slot is located at the rear of the housing.

According to one embodiment of the invention, in an unoperated state, the ratio of the distance between the rear end of the primary contact and the detection card to the distance between the rear end of the secondary contact and the detection card is 2-3: 4.

According to one embodiment of the invention, the barrel is positioned at the foremost end, the length of the barrel is smaller than that of the exposed part of the standard contact pin, the outer edge of the barrel extending along the radial direction is arranged on the outer periphery of the barrel, and the inner wall of the insertion hole is provided with an insertion hole limiting flange matched with the outer edge of the barrel.

According to one embodiment of the invention, the cartridge further comprises a base, the front end of the plug being inserted into the first cavity of the barrel, the base being located on the rear side of the plug, the secondary contact being fixedly connected to the rear side of the base and having a second cavity, the primary contact being at least partially received in the second cavity and being resiliently supported on the secondary contact or on the base.

According to one embodiment of the invention, the resilient support is realized by a spring.

According to one embodiment of the invention, the rear end faces of the primary and secondary contacts are provided with a pigment.

According to one embodiment of the invention, the pigment of the rear face of the primary contact is a different color than the pigment of the rear face of the secondary contact.

According to one embodiment of the invention, the peripheral wall near the front end of the plug is provided with a radially extending plug end edge which is supported on the rear end wall of the barrel by means of an elastic member.

According to one embodiment of the invention, the marking pattern of the test card comprises a shadow filling pattern and a no filling pattern.

According to one embodiment of the invention, the shadow filling pattern corresponds to a connector pinless position and the non-filling pattern corresponds to a connector pinless position.

Due to the structure, the connector detection device can obtain the following beneficial effects:

(1) precise and complex components such as a pressure sensor and the like are not needed, so that the cost is obviously reduced;

(2) through mechanical mark correction, visual judgment is provided for states of a connector pin, such as distribution point position error, insertion looseness and the like, and equipment burning loss caused by point position virtual connection and wrong connection due to connector power-on detection in the existing mode is avoided;

(3) the connector detection device has small volume, can replace the process detection card according to different core number connectors, is convenient to move and operate, and can be used in any procedure of locomotive assembly;

(4) the existing inspection mode needs to respectively detect the equipment after all the electric loops are communicated, time and labor are wasted, the scheme of the invention can detect a single connector, the effect is visual, manpower and material resources are saved, and the accuracy is high.

Drawings

FIG. 1 is a schematic diagram of a connector testing device according to one embodiment of the present invention;

FIG. 2 is a schematic view of the structure of a syringe according to an embodiment of the present invention;

FIG. 3 is a schematic diagram illustrating the start of travel position of the connector test device when testing with a connector pin according to one embodiment of the present invention;

FIG. 4 illustrates a schematic diagram showing an intermediate position of a connector testing device and connector pins in testing according to one embodiment of the present invention;

FIG. 5 shows a schematic diagram illustrating an end-of-stroke position of a connector testing device in testing with a connector pin according to one embodiment of the present invention;

FIG. 6 shows a schematic view of an unused test card;

FIG. 7 shows a schematic view of a test card after a test operation.

In the figure:

100 machine base, 110 jack, 111 jack limit flange, 120 slot, 200 plug cylinder, 210 cylinder, 211 cylinder outer edge, 220 base, 230 secondary contact, 240 primary contact, 241 primary contact limit flange, 250 spring, 260 plug, 261 plug end edge, 270 elastic component, 300 detection card, I pin, C connector, Ms shadow filling pattern, Me no filling pattern, M1 plug-in mark, M2 plug-out mark, M3 plug-in error mark, M4 plug-in missing pin mark, L₁Distance L between primary contact and detection card₀The distance between the secondary contact and the detection card.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As required, detailed embodiments of the present invention are disclosed in the present specification; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. The same or similar reference numerals may indicate the same parameters and components or similar modifications and substitutions thereto. In the following description, various operating parameters and components are described in various embodiments as contemplated. These specific parameters and components are used in this specification as examples only and are not meant to be limiting. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Fig. 1 shows a schematic structural diagram of a connector inspection apparatus according to an embodiment of the present invention. The connector test apparatus generally includes a housing 100, a plurality of cartridge 200 (only one cartridge 200 is shown in fig. 1 for clarity), and a test card 300.

As shown, the rear portion of the housing 100 is provided with a slot 120. The size and dimensions of the socket 120 are adapted to the area of the pin of the connector C to be tested. Slot 120 extends generally in the vertical direction as shown and is adapted to receive test card 300. The housing 100 further includes a plurality of insertion holes 110 formed in a main body thereof, wherein the insertion holes 110 extend from a front surface of the housing 100 to the insertion grooves 120, i.e., a length direction of the insertion holes 110 is perpendicular to a plane in which the insertion grooves 120 are formed. The receptacle 110 is adapted to receive the syringe cartridge 200 and is shaped and sized to accommodate the syringe cartridge 200. In this embodiment, the receptacle 110 is a cylindrical bore. The inner wall of the socket 110 is provided with an annular socket-defining flange 111 (refer to fig. 3), and the socket-defining flange 111 may serve to support the outer wall of the syringe 200 and to limit the backward movement of the cylinder 210 of the syringe 200. Thus, the inner diameter of the receptacle-defining flange 111 is approximately equal to the outer diameter of the barrel 210. In this embodiment, the housing 100 includes two columns of receptacles 110, each column including 4 rows of receptacles 110. However, it should be understood that the structures shown in the embodiments are only for illustration to facilitate the clear understanding of the embodiments of the present invention for those skilled in the art, but the present invention is not limited thereto. More or fewer jacks 110 may be provided depending on the number and distribution of pins of the connector C being tested.

Referring to fig. 1 and 2, the pin barrel 200 of the connector inspection device may be inserted into the socket 110. In the embodiment shown in fig. 2, syringe 200 generally includes a barrel 210, a plug 260, a base 220, secondary contacts 230, primary contacts 240, and a spring 250. Wherein the barrel 210 is located at the foremost end (i.e., the end near the connector pin), the length of the barrel 210 is less than the length of the exposed portion of the pin I that is plugged into place. A radially extending barrel outer edge 211 is provided on the outer circumference of the barrel 210, and the barrel outer edge 211 cooperates with the insertion hole stopper flange 111 to restrain the rearward displacement of the barrel 210. Barrel 210 has a hollow first cavity that can receive pin I of a connector. The front end of the plug 260 is inserted into the first cavity of the barrel 210 from the rear end of the barrel 210. The outer peripheral wall near the front end of the plug 260 is provided with a radially extending plug end edge 261, and the plug end edge 261 is supported on the rear end wall of the cylinder 210 by an elastic member 270 such as a spring. The plug 260 compresses the resilient member 270 and moves backward under the push of the pin I. The rear end of the plug 260 is connected to the base 220. The base 220 has a larger diameter than the plug 260 to provide stability and greater support. The rear end of the base 220 is connected to the secondary contact 230. The front end of the secondary contact 230 is coplanar with the base 220. The secondary contact 230 also has a second cavity that opens toward the rear end (i.e., the end facing away from the base 220). The primary contact 240 may be at least partially received in the second cavity of the secondary contact 230. The primary contact 240 is supported on the secondary contact 230 with a resilient member, such as a spring 250, with at least a portion of the primary contact 240 suspended outside of the second cavity of the secondary contact 230. The length of the primary contact 240 is less than or equal to the length of the second cavity of the secondary contact 230. In some embodiments, a radially extending first position-defining flange 241 is provided on the outer periphery of the middle portion of the primary contact 240, the first position-defining flange 241 being located forward of and constrained by the rear end edge of the secondary contact 230, thereby constraining the primary contact 240 from bouncing completely out of the second cavity of the secondary contact 230 and out of the second cavity during spring 250 rebounding.

In some embodiments, the end surfaces of the rear ends of the primary contacts 240 and the secondary contacts 230 are provided with paint. In some embodiments, the color of the pigment on the end face of the primary contact 240 may be different from the color of the pigment on the end face of the secondary contact 230. In other embodiments, the plug 260 may be connected directly to the front end of the secondary contact 230, i.e., the base 220 may be omitted.

Referring to fig. 3, a schematic diagram of a stroke start position when the connector pin I is detected by the connector detecting device according to one embodiment of the present invention is shown. Wherein, the distance between the rear end of the primary contact 240 and the detection card 300 is L₁The distance between the rear end of the secondary contact 230 and the test card 300 is L₂. Will be at a distance L₁And L₂Is set to be 2-3: 4, and L₂Is less than the distance between the plug end edge 261 and the rear end wall of the barrel 210 when the resilient member 270 is uncompressed. That is, the distance between the plug end edge 261 and the rear end wall of the cylinder 210 is set to satisfy the stroke length required to move the rear end of the secondary contact 230 into contact with the test card 300. When the primary contact 240 and the secondary contact 230 are too long from the test card 300, the resulting print pattern is not clearly printed. However, if the distance is too short, accidental triggering is easy to occur, and the measurement accuracy is affected.

Referring to fig. 1 and 6, a schematic diagram of a test card 300 is shown, according to one embodiment of the present invention. Test card 300 may be inserted into slot 120. The test card 300 is provided with a marking pattern that is consistent with the standard pin pattern of the connector C to be tested. These patterns of markings may use different markings to distinguish between locations where pins should be mounted and locations where pins should not be mounted. As shown in FIG. 6, each location is marked with a circle whose location matches the location of the receptacle 110 of the housing 100. The circles of the corresponding positions are filled in according to the type of connector to be detected. For example, when the position of the connector should be inserted with pins, the circle of the position is filled with a shadow, i.e., the shadow filling pattern Ms shown in fig. 6, and if no pin should be present at the position, the circle of the position is an unfilled pattern, i.e., the unfilled pattern Me shown in fig. 6. The size of the unfilled pattern Me may be larger than the size of the shadow fill pattern, so that it is easier to distinguish which pattern of locations should not or should have pins after inspection.

Referring to fig. 3-5, there are shown schematic diagrams of the operation of the connector test apparatus according to one embodiment of the present invention in testing with connector C pin I. The cartridge 200 is mounted in use in the receptacle 110 of the housing 100. For clarity, the mating process of only one pin header 200 and one pin I on connector C is shown here.

As shown in fig. 3, when pin I of connector C is inserted into the pin barrel 200 but the plug 260 is not compressed, the primary contact 240 and the secondary contact 230 of the pin barrel 200 are in an uncompressed state. At this time, a portion of the primary contact 240 is suspended outside the second cavity of the secondary contact 230, and the distance between the rear end of the primary contact 240 and the test card 300 is L₁The distance between the rear end of the secondary contact 230 and the test card may be L₂，L₁And L₂May be 3: 4.

As pin I of connector C moves toward the test card 300, pin I of connector C moves rearward against the plug 260. The barrel 210 is held in place by the receptacle-defining flange 111. The plug end edge 261 of the plug 260 compresses the elastic member 270 and moves backward. The rearward movement of the plug 260 causes the base 220, the secondary contacts 230, and the primary contacts 240 resiliently supported within the secondary contacts 230 to move rearward. As shown in fig. 4, primary contact 240 is moved back against test card 300 and the paint at the rear end of primary contact 240 is printed onto test card 300. Continuing to push connector C, if pin I is inserted into position, secondary contact 230 of corresponding pin cartridge 200 may be moved into contact with test card 300 and print the paint on the rear end of test card 300, as shown in fig. 5. If the pin I is not properly inserted, such as in the case of a pin shrinkage, the length of the pin I is not long enough to press the secondary contact 230 against the test card 300, and the secondary contact 230 cannot print the paint on the test card 300. When the connector C has a plurality of pins I, the connector C cannot move backward any more when the pins I inserted in place push the secondary contacts 230 of the corresponding pin barrel 200 to contact the test card 300. Therefore, if the insertion length of some pins I is not in place, the secondary contact 230 of the corresponding pin barrel 200 cannot be moved back to contact with the test card 300, and no corresponding mark can be generated.

At the time of inspection, the pattern of the inspection card 300 is set according to the type of the connector C to be inspected. Test card 300 is placed in slot 120 and all of receptacles 120 of base 100 are filled with cartridge 200 (in some embodiments, cartridge 200 may be held in base 100 at all times). As described above, the respective pins of the connector C are inserted into the pin barrel 200, and the connector C is moved toward the test card 300 until the connector C cannot move, and after holding at this position for several seconds, the pin I of the connector C is pulled out, and the test card 300 is taken out. When the pin I of the connector C is pulled out, the plug 260 of the pin cylinder 200 moves forward under the elastic force of the elastic member 270, and the socket 220, the primary contact 240, and the secondary contact 230 are integrally moved forward. At the same time, the primary contact 240 and the secondary contact 240 are restored to the original state by the spring 250.

Fig. 7 shows a schematic view of the test card 300 after a test operation. As shown, the position indicated by the marker M1 shown inserted into position is filled with paint substantially throughout the circle, indicating that the primary and secondary contacts of the cartridge in that position are both touching the test card, indicating that the pin is inserted into position. The depicted mismating marker M2 indicates that the cartridge in this position has only the primary contact in contact with the test card, but the secondary contact has not contacted the test card, due to the pin not being misaligned so that the secondary contact cannot move back a sufficient distance. The location indicated by the marker M3 illustrating the plugging error is printed with paint, however, it can be determined based on the type of its original pattern that the location is a non-shaded fill pattern, i.e., this location should not have a pin present, and therefore, the marker M3 indicates a pin plugging error. The illustration of the drop-in stitch with no paint on the marker M4 indicates that there is a drop-in at these locations.

The connector detection device provided by the invention does not need to adopt precise and complex components such as a pressure sensor and the like, so that the cost is obviously reduced. Through the correction of mechanical marks, the states of the pin wiring point error, the insertion looseness and the like of the connector are visually judged, and the equipment burning loss caused by point position virtual connection and wrong connection due to the power-on detection of the connector in the existing mode is avoided. The connector detection device is small in size, the process detection card can be replaced according to connectors with different core numbers, the movement and the operation are convenient, and the connector detection device can be used in any procedure of locomotive assembly. The existing inspection mode needs to respectively detect the equipment after all the electric loops are communicated, time and labor are wasted, the scheme of the invention can detect a single connector, the effect is visual, manpower and material resources are saved, and the accuracy is high.

It is to be understood that the features listed above for the different embodiments may be combined with each other to form further embodiments within the scope of the invention, where technically feasible. Furthermore, the particular examples and embodiments described herein are non-limiting, and various modifications of the structure, dimensions, and materials set forth above may be made without departing from the scope of the invention.

In this application, the use of the conjunction of the contrary intention is intended to include the conjunction. Furthermore, the conjunction "or" may be used to convey simultaneous features, rather than mutually exclusive schemes. In other words, the conjunction "or" should be understood to include "and/or". The term "comprising" is inclusive and has the same scope as "comprising".

The above-described embodiments, particularly any "preferred" embodiments, are possible examples of implementations, and are presented merely for a clear understanding of the principles of the invention. Many variations and modifications may be made to the above-described embodiments without departing substantially from the spirit and principles of the technology described herein. All such modifications are intended to be included within the scope of this disclosure.