Dual-power supply circuit for automobile switch detection equipment

Abstract

The utility model discloses a dual-power supply circuit for automobile switch detection equipment, which comprises a 24v direct-current power supply and a 12v direct-current power supply, and the positive pole and the negative pole of the 24v direct-current power supply are respectively connected with the positive pole power supply access end and the negative pole power supply access end of the detection equipment through a power line and a first relay on the power line. The positive electrode and the negative electrode of the 12v direct-current power source are connected with the positive electrode power source access end and the negative electrode power source access end of the detection device through a power line and a second relay on the power line respectively, the contact opening and closing state of the first relay is opposite to the contact opening and closing state of the second relay, and the first relay and the second relay are connected with the controller. The controller is connected with a power supply switching button; according to the dual-power supply circuit, a 24V switch and a 12V switch can be detected only by designing and manufacturing one detection device, the design and manufacturing period and cost of the detection device are effectively saved, the utilization rate of the device is improved, and storage of the detection device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile switch detection, in particular to a dual power supply circuit for automobile switch detection equipment. Background Art

[0002] In the automotive switch product assembly line, there are two batches of switches with the same appearance but different voltages that need to be tested by testing equipment to detect the switch voltage drop or on-off function. The existing technology designs and manufactures a testing device for each batch of switches. The only difference between the two testing devices is the different power supply voltage, which wastes the design and manufacturing costs and cycle of the testing equipment, and also leads to the accumulation of more testing equipment. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a dual power supply circuit for automobile switch detection equipment to solve the problem that two batches of switches each have a detection device, which causes waste of detection equipment design and manufacturing costs and cycles, and also accumulates more technical problems of the detection equipment.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A dual-power supply circuit for automotive switch detection equipment includes a 24V DC power supply and a 12V DC power supply. The positive and negative poles of the 24V DC power supply are connected to the positive power access terminal and the negative power access terminal of the detection equipment respectively through a power line and a first relay on the power line. The positive and negative poles of the 12V DC power supply are connected to the positive power access terminal and the negative power access terminal of the detection equipment respectively through the power line and a second relay on the power line. The opening and closing state of the contacts of the first relay is opposite to the opening and closing state of the contacts of the second relay. The first relay and the second relay are respectively connected to a controller, and the controller is connected to a power switching button.

[0006] Further, the end of the power line of the positive pole of the 12V DC power supply facing away from the 12V DC power supply is connected between the first relay and the positive power access terminal on the power line of the positive pole of the 24V DC power supply, and the end of the power line of the negative pole of the 12V DC power supply facing away from the 12V DC power supply is connected between the first relay and the negative power access terminal on the power line of the negative pole of the 24V DC power supply.

[0007] Furthermore, both the 24V DC power supply and the 12V DC power supply are switching power supplies, and the switching power supplies are connected to the mains.

[0008] Furthermore, the controller is a motion board.

[0009] The beneficial effects of the utility model are:

[0010] The dual power supply circuit for automobile switch detection equipment of this utility model:

[0011] When the power switch button is not pressed, the first relay is disconnected and the second relay is closed, and the 12V DC power supply is used to power the detection device, and the detection device detects the 12V switch; when the power switch button is pressed, the first relay is closed and the second relay is disconnected, and the 24V DC power supply is used to power the detection device, and the detection device detects the 24V switch;

[0012] Alternatively, when the power switch button is not pressed, the first relay is closed, the second relay is disconnected, and the power is supplied by a 24V DC power supply. The detection device detects the 24V switch; when the power switch button is pressed, the first relay is disconnected, the second relay is closed, and the power is supplied by a 12V DC power supply. The detection device detects the 12V switch.

[0013] The dual power supply circuit for automobile switch detection equipment of the utility model enables only one detection device to be designed and manufactured to detect 24V switches and 12V switches, effectively saving the design and manufacturing cycle and cost of the detection equipment, improving equipment utilization, and reducing the storage of the detection equipment.

[0014] Other advantages, objectives, and features of the present invention will be described in detail in the following description and, to some extent, will be apparent to those skilled in the art upon examination and study of the following or may be learned from practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings, in which:

[0016] Figure 1 This is a circuit diagram of Example 1 of the present utility model.

[0017] Figure 2 This is the circuit diagram of the second embodiment of the present utility model. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention and are not intended to limit the scope of protection of the present invention.

[0019] Example 1

[0020] like Figure 1As shown, a dual-power supply circuit for automobile switch detection equipment includes a 24V DC power supply and a 12V DC power supply. Both the 24V DC power supply and the 12V DC power supply are switching power supplies connected to the mains. The positive and negative poles of the 24V DC power supply are connected to the positive power access terminal and the negative power access terminal of the detection equipment respectively through the power cord and the normally open first relay on the power cord; the positive and negative poles of the 12V DC power supply are connected to the positive power access terminal and the negative power access terminal of the detection equipment respectively through the power cord and the normally closed second relay on the power cord. The normally open first relay and the normally closed second relay are both connected to the motion board, and the motion board is connected to the power switch button.

[0021] Preferably, the end of the power line of the positive pole of the 12V DC power supply facing away from the 12V DC power supply is connected between the first relay and the positive power access terminal on the power line of the positive pole of the 24V DC power supply, and the end of the power line of the negative pole of the 12V DC power supply facing away from the 12V DC power supply is connected between the first relay and the negative power access terminal on the power line of the negative pole of the 24V DC power supply.

[0022] When the power switch button is not pressed, the first relay is disconnected, the second relay is closed, the 12V DC power supply powers the detection equipment, and the detection equipment detects the 12V switch; when the power switch button is pressed, the first relay is closed, the second relay is disconnected, the 24V DC power supply powers the detection equipment, and the detection equipment detects the 24V switch.

[0023] The dual power supply circuit allows only one detection device to be designed and manufactured to detect 12V switches and 24V switches, effectively saving the design and manufacturing cycle and cost of the detection equipment, improving equipment utilization, and reducing the storage of the detection equipment.

[0024] Example 2

[0025] like Figure 2 As shown, a dual-power supply circuit for automotive switch detection equipment includes a 24V DC power supply and a 12V DC power supply. Both the 24V DC power supply and the 12V DC power supply are switching power supplies connected to the mains. The positive and negative poles of the 24V DC power supply are connected to the positive power supply access terminal and the negative power supply access terminal of the detection equipment respectively through the power cord and the normally closed first relay on the power cord. The positive and negative poles of the 12V DC power supply are connected to the positive power supply access terminal and the negative power supply access terminal of the detection equipment respectively through the power cord and the normally open second relay on the power cord. The normally closed first relay and the normally open second relay are connected to the microcontroller, and the microcontroller is connected to the power switch button.

[0026] Preferably, the end of the power line of the positive pole of the 12V DC power supply facing away from the 12V DC power supply is connected between the first relay and the positive power access terminal on the power line of the positive pole of the 24V DC power supply, and the end of the power line of the negative pole of the 12V DC power supply facing away from the 12V DC power supply is connected between the first relay and the negative power access terminal on the power line of the negative pole of the 24V DC power supply.

[0027] When the power switch button is not pressed, the first relay is closed and the second relay is disconnected, the 24V DC power supply supplies power to the detection equipment, and the detection equipment detects the 24V switch. When the power switch button is pressed, the first relay is disconnected and the second relay is closed, the 12V DC power supply supplies power to the detection equipment, and the detection equipment detects the 12V switch.

[0028] The dual power supply circuit allows only one detection device to be designed and manufactured to detect 12V switches and 24V switches, effectively saving the design and manufacturing cycle and cost of the detection equipment, improving equipment utilization, and reducing the storage of the detection equipment.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. Dual power supply circuit for automobile switch detection equipment, characterized by: It includes a 24V DC power supply and a 12V DC power supply. The positive pole and negative pole of the 24V DC power supply are respectively connected to the positive power access terminal and the negative power access terminal of the detection device through a power line and a first relay on the power line. The positive pole and negative pole of the 12V DC power supply are respectively connected to the positive power access terminal and the negative power access terminal of the detection device through the power line and a second relay on the power line. The contact opening and closing state of the first relay is opposite to the contact opening and closing state of the second relay. The first relay and the second relay are respectively connected to a controller, and the controller is connected to a power switching button.

2. The dual power supply circuit for automobile switch detection equipment according to claim 1, characterized in that: The end of the positive power line of the 12V DC power supply facing away from the 12V DC power supply is connected between the first relay and the positive power access terminal on the positive power line of the 24V DC power supply, and the end of the negative power line of the 12V DC power supply facing away from the 12V DC power supply is connected between the first relay and the negative power access terminal on the negative power line of the 24V DC power supply.

3. The dual power supply circuit for automobile switch detection equipment according to claim 1, characterized in that: The 24V DC power supply and the 12V DC power supply are both switching power supplies, and the switching power supplies are connected to the mains.

4. The dual power supply circuit for automobile switch detection equipment according to any one of claims 1 to 3, characterized in that: The controller is a motion board.

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