CN215728734U

CN215728734U - Simple and effective testing tool for detecting reverse connection of wire harness of electromagnetic coil connector

Info

Publication number: CN215728734U
Application number: CN202122097645.XU
Authority: CN
Inventors: 李缪根; 曾宪青; 胡海波
Original assignee: Wuxi Jewel Technology Co ltd
Current assignee: Wuxi Jewel Technology Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-02-01
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses a simple and effective test tool for detecting reverse connection of a wire harness of an electromagnetic coil connector, which comprises a test carrier seat, wherein a test pressure head is arranged above the test carrier seat, a test probe is fixed on the test pressure head, and the test pressure head can drive the test probe to be pressed down to the test carrier seat; also included is a resistance tester electrically connected to the test probe. The resistance tester is used for testing the size of the resistor, because the loops of the two state structures are different and the resistance values are different, the resistance tester can effectively judge through testing the resistor, has compact and convenient use and low cost, can effectively identify the wiring state of the wire harness of the electromagnetic coil connector and the wire harness reverse connection product of the connector, and has the advantages of 100 percent of identification rate, simple structure, convenient operation and low cost.

Description

Simple and effective testing tool for detecting reverse connection of wire harness of electromagnetic coil connector

Technical Field

The utility model relates to the field of solenoid coil connector wire harnesses, in particular to a simple and effective test tool for detecting reverse connection of a solenoid coil connector wire harness.

Background

At present, an electromagnetic coil is connected with a fitting through a connector, particularly an electromagnetic coil connector containing a wire harness, if a conducting wire is reversely connected, the electromagnetic coil is directly short-circuited, and a product fails.

In order to effectively detect the failure mode, the method can be implemented by adding additional manual visual inspection, putting visual image Camera system inspection and other methods; however, these solutions are not only costly, but also high risk because they do not detect 100% of rejects.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a simple and effective test tool for detecting the reverse connection of the wire harness of the electromagnetic coil connector, the resistance tester is used for testing the size of the resistor, because the loops of the two state structures are different and the resistance values are different, the testing resistor can be used for effectively judging, the structure is compact and convenient to use, the cost is low, the wire harness connection state of the electromagnetic coil connector can be effectively identified, the reverse connection product of the wire harness of the connector can be effectively identified, the identification rate is 100%, the structure is simple, the operation is convenient, and the cost is low.

In order to achieve the technical purpose, the utility model adopts the following technical scheme: a simple and effective test tool for detecting reverse connection of a wire harness of an electromagnetic coil connector comprises a test carrier seat, wherein a test pressure head is arranged above the test carrier seat, a test probe is fixed on the test pressure head, and the test pressure head can drive the test probe to press down on the test carrier seat;

also included is a resistance tester electrically connected to the test probe.

Furthermore, two clamping rods are fixed on the pressure testing head, and the free end parts of the clamping rods are respectively and fixedly connected with one testing probe.

Furthermore, a fixing through hole is formed in the free end portion of the clamping rod, and the test probe penetrates through the fixing through hole.

Furthermore, the end A of the test probe is used for touching a contact pin of the electromagnetic coil, and the end B of the test probe is fixedly connected with a test connector of the resistance tester.

Furthermore, the surface of the end B of the test probe is provided with a thread groove, and a test joint of the resistance tester is clamped or wound in the thread groove.

Further, still include the cylinder, still seted up the connecting hole on the pressure testing head, the output lever fixed connection of cylinder is in the connecting hole.

Furthermore, the test carrier seat is also provided with a positioning groove, two fixing blocks are arranged on two sides of the positioning groove, and the fixing blocks are fixedly connected with push-pull rods.

Further, the fixed block is an arc-shaped plate.

And the signal processor is electrically connected with the resistance tester and used for receiving the resistance value judging signal and judging whether the tested product is qualified or not.

In conclusion, the utility model achieves the following technical effects:

1. the utility model utilizes the self resistance of the coil, and tests the resistance of the coil according to the difference of the resistance values of two wiring states, thereby being direct and effective;

2. the utility model does not use manpower to visually detect, does not increase the video Camera detection, and saves the cost;

3. the utility model has simple and compact structure and convenient test steps;

4. the utility model has the detection rate of 100 percent, and avoids serious consequences caused by the flow of reverse connection wire products to the client.

Drawings

FIG. 1 is a schematic diagram of a test fixture provided in an embodiment of the present invention;

FIG. 2 is a schematic view of the test indenter portion in connection with a test probe;

FIG. 3 is a schematic view of a test carrier;

FIG. 4 is a schematic diagram of the solenoid coil properly wired to the connector;

FIG. 5 is a schematic diagram of the corresponding resistance test of FIG. 4;

FIG. 6 is a schematic illustration of a solenoid with a miswire connection to a connector;

FIG. 7 is a schematic diagram of the corresponding resistance test of FIG. 6;

fig. 8 is ten sets of test results.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example (b):

as shown in fig. 1, a simple and effective test tool for detecting reverse connection of a wire harness of an electromagnetic coil connector comprises a test carrier seat 4, a test pressure head 2 is arranged above the test carrier seat 4, a test probe 5 is fixed on the test pressure head 2, and the test pressure head 2 can drive the test probe 5 to press down on the test carrier seat 4; the testing device further comprises a resistance tester 1, wherein the resistance tester 1 is electrically connected to a testing probe 5, and the resistance tester 1 is electrically connected to two ports (a first pin 71 and a second pin 72) of the electromagnetic coil by using the testing probe 5 to test the resistance.

As shown in fig. 2, two clamping rods 22 are fixed to the test indenter 2, and one test probe 5 is fixedly connected to each of free ends of the clamping rods 22. The end A of the test probe 5 is used for touching the contact pin of the electromagnetic coil 7, and the end B of the test probe 5 is fixedly connected with the test joint of the resistance tester 1. When the electromagnetic coil is in place, the end A of the test probe 5 is driven by the test pressure head 2 to be pressed downwards, the end A touches and is connected to a contact pin of the electromagnetic coil, the end B is connected with a test connector of a test line of the resistance tester 1, and the two contact pins of the battery coil and the two test connectors of the resistance tester 1 are connected by the two test probes 5 in the same mode to detect the resistance.

Further, as shown in fig. 2, a fixing through hole 23 is opened at a free end of the clamping rod 22, and the test probe 5 is inserted into the fixing through hole 23. The fixing mode can adopt: the fixing through hole 23 is provided with threads, the surface of the test probe 5 is provided with threads, and the fixing through hole and the test probe are connected through the threads.

Further, the B-end surface of the test probe 5 is provided with a threaded groove 51, and the test connector of the resistance tester 1 is clamped or wound in the threaded groove 51 to realize the electrical connection between the electromagnetic coil and the resistance tester.

Of course, the clamping rod 22 is made of an insulating material to prevent an electric shock of a worker. Or, the conducting strip is fixed at the A end, a lead electrically connected with the conducting strip is arranged in the test probe 5, a threaded hole is formed in the B section, and the test connector is fixed in the threaded hole through a bolt and electrically connected with the lead. In short, the aim of preventing electric shock is achieved.

As shown in fig. 1, the testing device further comprises an air cylinder 6, a connecting hole 21 (shown in fig. 2) is further formed in the testing ram 2, and an output rod of the air cylinder 6 is fixedly connected in the connecting hole 21.

The test carrier 4 is further provided with a positioning groove 41, two fixing blocks 42 are arranged on two sides of the positioning groove 41, and the fixing blocks 42 are fixedly connected with a push-pull rod 43. The fixing block 42 is an arc-shaped plate. For holding the solenoid against deflection between the test probe 5 and the pin due to deflection of the solenoid.

The resistance tester is characterized by further comprising a signal processor 3, wherein the signal processor 3 is electrically connected with the resistance tester 1 and used for receiving a resistance value judging signal and judging whether a tested product is qualified or not.

The signal processor 3 and the resistance tester 1 in this embodiment are both existing products, and may be of a market universal type.

The working principle is as follows:

as shown in fig. 4, the solenoid 7 has pin one 71 and pin two 72, the connector 10 has pin one 91 and pin two 92, the first wire 81 connects pin one 71 and pin one 91, and the second wire 82 connects pin two 72 and pin two 92, which is a correct wiring method, and constitutes a normal circuit.

However, in the normal production process, the situation that the first connecting line 81+ the second connecting line 82 is reversely connected with the first pin 91 and the second pin 92 occurs in the assembly process, as shown in fig. 6, the first connecting line 81 connects the first pin 71 with the second pin 92, and the second connecting line 82 connects the second pin 72 with the first pin 91, which is different from the normal circuit shown in fig. 1, and the failure mode of the electromagnetic coil of the product shown in fig. 6 after being powered on is a short circuit, and the electromagnetic coil belongs to a serious performance defective product.

When the resistance tester is used, the air cylinder 6 acts to press the test pressure head 2 downwards, so that the ends A of the two test probes 5 are respectively contacted with the first contact pin 71 and the second contact pin 72, the numerical value of the resistance tester 1 is observed, if the resistance is the self resistance of a product, the connection earns money, and if the resistance is not the self resistance of the product, the connection is wrong.

As shown in fig. 5, with the correct wiring, the arrows show the correct circuit loop, the test procedure: 92-82-72-7-71-81-91, the output resistance is the resistance of the product, and the product is a qualified product; the resistance of the product has a specified range, and the signal processor judges that the product is in the range and outputs qualified information within the range set by the signal processor.

As shown in fig. 7, under a wrong wiring, the arrow in the figure shows the loop of the wrong circuit, the test procedure: 92-81-71-91, the output electricity is the internal resistance of the lead, the product is an unqualified product, and the signal processor judges that the product is not in the resistance range of a normal product and outputs unqualified information.

Fig. 8 shows 10 product simulation tests, in which 8 OK products, 2 reverse-wired products, and 2 reverse-wired products were all detected.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a simple effectual test fixture who detects solenoid connector pencil transposition which characterized in that: the test device comprises a test carrier seat (4), wherein a test pressure head (2) is arranged above the test carrier seat (4), a test probe (5) is fixed on the test pressure head (2), and the test pressure head (2) can drive the test probe (5) to be pressed down onto the test carrier seat (4);

also included is a resistance tester (1), the resistance tester (1) being electrically connected to the test probe (5).

2. The simple and effective test tool for detecting the reverse connection of the wire harness of the electromagnetic coil connector according to claim 1, is characterized in that: two clamping rods (22) are fixed on the testing pressure head (2), and the free end parts of the clamping rods (22) are respectively and fixedly connected with one testing probe (5).

3. The simple and effective test tool for detecting the reverse connection of the wire harness of the electromagnetic coil connector according to claim 2, is characterized in that: fixing through holes (23) are formed in the free end portions of the clamping rods (22), and the test probes (5) penetrate through the fixing through holes (23).

4. The simple and effective test tool for detecting the reverse connection of the wire harness of the electromagnetic coil connector according to claim 2, is characterized in that: the A end of the test probe (5) is used for touching a contact pin of the electromagnetic coil (7), and the B end of the test probe (5) is fixedly connected with a test joint of the resistance tester (1).

5. The simple and effective test tool for detecting the reverse connection of the wire harness of the electromagnetic coil connector according to claim 4, is characterized in that: the surface of the end B of the test probe (5) is provided with a thread groove (51), and a test joint of the resistance tester (1) is clamped or wound in the thread groove (51).

6. The simple and effective test tool for detecting the reverse connection of the wire harness of the electromagnetic coil connector according to claim 5, is characterized in that: still include cylinder (6), still seted up connecting hole (21) on test pressure head (2), the output lever fixed connection of cylinder (6) is in connecting hole (21).

7. The simple and effective test tool for detecting the reverse connection of the wire harness of the electromagnetic coil connector according to claim 6, is characterized in that: the test carrier seat (4) is further provided with a positioning groove (41), two fixing blocks (42) are arranged on two sides of the positioning groove (41), and the fixing blocks (42) are fixedly connected with push-pull rods (43).

8. The simple and effective test tool for detecting the reverse connection of the wire harness of the electromagnetic coil connector according to claim 7, is characterized in that: the fixed block (42) is an arc-shaped plate.

9. The simple and effective test tool for detecting the reverse connection of the wire harness of the electromagnetic coil connector according to claim 8, is characterized in that: the resistance tester is characterized by further comprising a signal processor (3), wherein the signal processor (3) is electrically connected with the resistance tester (1) and used for receiving a resistance value judging signal and judging whether a tested product is qualified or not.