CN213658795U

CN213658795U - Positive and negative electrode switching device for vehicle-mounted component detection

Info

Publication number: CN213658795U
Application number: CN202022622234.3U
Authority: CN
Inventors: 谢友将; 尹成诚
Original assignee: Suzhou Emtek Co ltd
Current assignee: Suzhou Emtek Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-07-09
Anticipated expiration: 2030-11-13

Abstract

The utility model provides a positive and negative electrode switching device for detecting vehicle-mounted elements, which comprises a detection box, an input power supply, a time relay, a first intermediate relay, a second intermediate relay and an output terminal, wherein the input power supply, the time relay, the first intermediate relay, the second intermediate relay and the output terminal are positioned in the detection box; the structure is succinct, small in size, when carrying out electrode switching detection to kart spare part or electric module, need not carry out the dismantlement plug of wiring, the switching that positive and negative electrode can be controlled to the break-make that only needs manual control time relay to can be through the time of input time control electrode switching in time relay, can greatly improve detection efficiency, and the wiring that leads to when avoiding the dismouting wiring drops or connection error, effectively improves the security that detects and the accuracy of testing result.

Description

Positive and negative electrode switching device for vehicle-mounted component detection

Technical Field

The utility model relates to an on-vehicle component detects, especially relates to a positive negative electrode auto-change over device for on-vehicle component detects.

Background

The electronic technology is applied to automobiles and mainly has the three aspects of saving fuel, reducing pollution, improving safety and the like. The products required for the automation of automobile driving are as follows: the system comprises an automobile ignition device, an electronic fuel injection system, an engine comprehensive control system, an electronic automatic transmission, an electronic suspension control system, an electronic steering control system and an electronic braking control system; the products required for improving the safety of automobiles are: the system comprises an automobile navigation system, an automobile safety alarm system, an automobile anti-collision system and an automobile fault automatic diagnosis system; products for improving the comfort of the automobile are: automobile radio and tape player, vehicle-mounted entertainment system, automobile air conditioner, etc.

The automobile electronic is a general name of an automobile body electronic control device and a vehicle-mounted automobile electronic control device, and is a combination of an electronic information technology and an automobile traditional technology. The degree of automobile electronization is regarded as an important mark for measuring the level of modern automobiles, is an important technical measure for developing new automobile types and improving automobile performance, and is in a rapidly rising development stage at present.

Before the automobile leaves a factory, each system and parts in the automobile need to be strictly detected so as to ensure the performance and quality of the automobile in all aspects. At present, for the modules or parts needing positive and negative electrode switching inspection, disconnection is generally performed after the first inspection is finished, the positive and negative electrode interfaces are exchanged for secondary inspection, the operation steps are complicated, and when devices with complex wiring are encountered, errors are easy to occur when the positive and negative electrode interfaces are exchanged, the inspection result is influenced, so that a detection device which does not need to disconnect line connection and can conveniently switch the positive and negative electrodes of a power supply is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a positive and negative electrode switching device for vehicle-mounted element detection.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a positive and negative electrode switching device for vehicle-mounted component detection comprises a detection box, and an input power supply, a time relay, a first intermediate relay, a second intermediate relay and an output terminal which are arranged in the detection box; the input power supply comprises a positive input terminal and a negative input terminal which are arranged on the side wall of the detection box, the positive input terminal is used for connecting the positive electrode of an external power supply, the negative input terminal is used for connecting the negative electrode of the external power supply, the output terminal comprises a first output terminal and a second output terminal which are arranged on the side wall of the detection box, the first output terminal is used for connecting the positive electrode of a sample to be detected, and the second output terminal is used for connecting the negative electrode of the sample to be detected; the first intermediate relay is connected with the input power supply and the first output terminal respectively, and the second intermediate relay is connected with the input power supply and the second output terminal respectively; the time relay is respectively connected with the first intermediate relay and the second intermediate relay and controls the on-off of the contacts of the first intermediate relay and the second intermediate relay; when the time relay is powered off, the first output terminal is a positive pole, and the second output terminal is a negative pole; when the time relay is electrified, the first output terminal is a negative electrode, and the second output terminal is a positive electrode.

Preferably, the first intermediate relay includes a first movable contact connected to the first output terminal, a first fixed contact connected to the positive input terminal, and a second fixed contact connected to the negative input terminal; the second intermediate relay includes a second movable contact connected to the second output terminal, a third stationary contact connected to the negative input terminal, and a fourth stationary contact connected to the positive input terminal.

Preferably, when the time relay is powered off, the first movable contact is connected with the first fixed contact, and the second movable contact is connected with the third fixed contact; when the time relay is electrified, the first movable contact is connected with the second fixed contact, and the second movable contact is connected with the fourth fixed contact.

Preferably, the detection box is an insulation material detection box with an openable structure.

Preferably, the top of the detection box is provided with a window, and the display screen and the key area of the time relay extend out of the window and are positioned outside the detection box.

Compared with the prior art, the utility model discloses a positive negative electrode auto-change over device for on-vehicle component detects utilizes time relay and two auxiliary relay to realize the positive negative pole switching of output, and the structure is succinct, small in size, when carrying out electrode switching detection to kart spare part or electric module, the dismantlement plug that need not carry out the wiring, the switching that positive negative electrode can be controlled to the break-make that only needs manual control time relay, and can be through the time of input time control electrode switching in time relay, can greatly improve detection efficiency, and the wiring that leads to when avoiding the dismouting wiring drops or connects the mistake, effectively improve the security that detects and the accuracy of testing result.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a positive-negative electrode switching device for vehicle-mounted component detection according to an embodiment of the present invention;

fig. 2 is a schematic diagram of two intermediate relays when the time relay according to an embodiment of the present invention is turned off;

fig. 3 is a schematic diagram of two intermediate relays when the time relay according to an embodiment of the present invention is closed.

Detailed Description

In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 3, a positive and negative electrode switching device for vehicle-mounted component detection comprises a detection box 1, and an input power supply 2, a time relay 3, a first intermediate relay 4, a second intermediate relay 5 and an output terminal 6 which are arranged in the detection box 1. The input power supply 2 is externally connected with the positive electrode and the negative electrode of the power supply, the output terminal 6 is connected with the positive electrode and the negative electrode of the sample 7 to be detected, the positive electrode and the negative electrode of the input power supply 2 of the device are kept unchanged, the on-off of the first intermediate relay 4 and the second intermediate relay 5 are controlled through the time relay 3, and therefore the output terminal 6 can realize the positive electrode and negative electrode switching, and the controllable switching of the positive electrode and the negative electrode can be realized without disassembling a wiring under the condition that an automobile part or an electric module to be detected is always connected with.

The input power supply 2 comprises a positive input terminal 21 and a negative input terminal 22 which are arranged on the side wall of the detection box 1, wherein the positive input terminal 21 is used for connecting the positive pole of an external power supply, and the negative input terminal 22 is used for connecting the negative pole of the external power supply. The output terminal 6 comprises a first output terminal 61 and a second output terminal 62 which are arranged on the side wall of the detection box 1, wherein the first output terminal 61 is used for connecting the positive pole of the sample 7 to be detected, and the second output terminal 62 is used for connecting the negative pole of the sample 7 to be detected. The first intermediate relay 4 is connected to the input power source 2 and the first output terminal 61, respectively, and the second intermediate relay 4 is connected to the input power source 2 and the second output terminal 62, respectively; the time relay 3 is respectively connected with the first intermediate relay 4 and the second intermediate relay 5 and controls the contact on-off of the first intermediate relay 4 and the second intermediate relay 5. The time relay 3 is powered off, the first output terminal 61 is a positive electrode, and the second output terminal 62 is a negative electrode; when the time relay 3 is energized, the first output terminal 61 is a negative electrode, and the second output terminal 62 is a positive electrode.

In one embodiment, the first intermediate relay 4 includes a first movable contact 41, a first fixed contact 42, and a second fixed contact 43, the first movable contact 41 being connected to the first output terminal 61, the first fixed contact 42 being connected to the positive input terminal 21, the second fixed contact 43 being connected to the negative input terminal 22; the second intermediate relay 5 includes a second movable contact 51, a third fixed contact 52, and a fourth fixed contact 53, the second movable contact 51 being connected to the second output terminal 62, the third fixed contact 52 being connected to the negative input terminal 22, and the fourth fixed contact 53 being connected to the positive input terminal 21.

The time relay 3 has the main function of being an execution device in simple program control, starts timing after receiving a starting signal, and performs opening or closing action on a working contact after timing is finished, so that a subsequent circuit is pushed to work. The time relay 3 can be a power-off delay time relay, and when an input signal is obtained, an execution part immediately has an output signal; after the input signal disappears, the relay needs to be delayed for a certain time to recover to the state before action. Which functionally behaves as a single pole double throw switch.

As shown in fig. 2, when the apparatus is used, the time relay 3 is in an original state of a power-off state, the first movable contact 41 is connected with the first fixed contact 42, the second movable contact 51 is connected with the third fixed contact 52, two ends of the first intermediate relay 4 are respectively connected with the positive input terminal 21 and the first output terminal 61, that is, the first output terminal 61 is a positive electrode, two ends of the second intermediate relay 5 are respectively connected with the negative input terminal 22 and the second output terminal 62, that is, the second output terminal 62 is a negative electrode, and the sample to be detected is positively charged.

As shown in fig. 3, when the time delay control signal is input in the key area of the time relay 3, when the time relay 3 is powered on, the first movable contact 41 is connected to the second stationary contact 43, the second movable contact 51 is connected to the fourth stationary contact 53, two ends of the first intermediate relay 4 are respectively connected to the negative input terminal 22 and the first output terminal 61, that is, the first output terminal 61 is a negative electrode, two ends of the second intermediate relay 5 are respectively connected to the positive input terminal 21 and the second output terminal 62, that is, the second output terminal 62 is a positive electrode, and the sample to be detected is reversely powered on. After the time length input in the time relay 3 is executed, the time relay 3 is automatically powered off, the contact connection of the first intermediate relay 4 and the second intermediate relay 5 is restored to the original state, and the sample to be detected is restored to be positively powered on.

The electrode switch that detects sample 7 both ends is detected through on-off control of time relay 3, the utility model discloses the structure is succinct, small in size, when carrying out electrode switch detection to kart spare part or electric module, the dismantlement plug that need not carry out the wiring, the switching that positive negative electrode can be controlled to the break-make that only needs manual control time relay 3, and can be through the time of input time control electrode switch in time relay 3, can greatly improve detection efficiency, and the wiring that leads to when avoiding the dismouting wiring drops or links the mistake, effectively improve the security that detects and the accuracy of testing result.

In an embodiment, the detection box 1 is made of an insulating material and has an openable structure, the top of the detection box 1 is provided with a window 11, and the display screen and the key area of the time relay 3 extend out of the window 11 and are located outside the detection box 1, so that the control is convenient. When the device broke down, can open the convenient maintenance of detection box 1, in addition, the detection box 1 of insulating material is favorable to strengthening the security that detects.

The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.

Claims

1. A positive and negative electrode switching device for vehicle-mounted component detection is characterized in that: the device comprises a detection box, and an input power supply, a time relay, a first intermediate relay, a second intermediate relay and an output terminal which are positioned in the detection box; the input power supply comprises a positive input terminal and a negative input terminal which are arranged on the side wall of the detection box, the positive input terminal is used for connecting the positive electrode of an external power supply, the negative input terminal is used for connecting the negative electrode of the external power supply, the output terminal comprises a first output terminal and a second output terminal which are arranged on the side wall of the detection box, the first output terminal is used for connecting the positive electrode of a sample to be detected, and the second output terminal is used for connecting the negative electrode of the sample to be detected; the first intermediate relay is connected with the input power supply and the first output terminal respectively, and the second intermediate relay is connected with the input power supply and the second output terminal respectively; the time relay is respectively connected with the first intermediate relay and the second intermediate relay and controls the on-off of the contacts of the first intermediate relay and the second intermediate relay; when the time relay is powered off, the first output terminal is a positive pole, and the second output terminal is a negative pole; when the time relay is electrified, the first output terminal is a negative electrode, and the second output terminal is a positive electrode.

2. The positive-negative electrode switching device for vehicle-mounted component detection according to claim 1, wherein: the first intermediate relay comprises a first movable contact, a first fixed contact and a second fixed contact, the first movable contact is connected with the first output terminal, the first fixed contact is connected with the positive pole input terminal, and the second fixed contact is connected with the negative pole input terminal; the second intermediate relay includes a second movable contact connected to the second output terminal, a third stationary contact connected to the negative input terminal, and a fourth stationary contact connected to the positive input terminal.

3. The positive-negative electrode switching device for vehicle-mounted component detection according to claim 2, characterized in that: when the time relay is powered off, the first movable contact is connected with the first fixed contact, and the second movable contact is connected with the third fixed contact; when the time relay is electrified, the first movable contact is connected with the second fixed contact, and the second movable contact is connected with the fourth fixed contact.

4. The positive-negative electrode switching device for vehicle-mounted component detection according to claim 1, wherein: the detection box is an insulation material detection box with an openable structure.

5. The positive-negative electrode switching device for vehicle-mounted component detection according to claim 4, wherein: the top of the detection box is provided with a window, and the display screen and the key area of the time relay extend out of the window and are positioned outside the detection box.