CN218275153U - Connector structure - Google Patents

Abstract

The utility model provides a connector structure for reactive compensation cabinet, include: the power unit side plug comprises a plurality of integrated terminal pin plugs, the cabinet body machine position side plug comprises a plurality of integrated terminal pin sockets, under the inserting and closing state, the integrated terminal pin plugs and the integrated terminal pin sockets form electrical connection, and according to the machine position where the cabinet body machine position side plug socket is located is different, the positions and the number of the integrated terminal pin sockets at high potential and low potential in the integrated terminal pin sockets are different. The utility model discloses automatic identification unit module identity number need not manual operation, reduces the complexity of manufacturing process and improves the fault-tolerant rate of system to utilize DI input dry contact signal to carry out identification, need not to increase extra device, reduce the maintenance cost, and can also judge whether switching power supply normally exports work.

Description

Connector structure

Technical Field

The utility model relates to a connector structure especially relates to a connector structure for reactive compensation cabinet.

Background

At present, in a reactive power compensation cabinet, machine position identification is mainly realized through a dial switch on a power unit module, and independent serial numbers of each unit are given by adjusting the dial switch.

The prior art document 1 provides a circuit for setting an equipment address by using a dial switch, and a circuit for setting an equipment address by using a dial switch, which solves the technical problem that the existing dial switch needs to occupy a plurality of I/O ports for setting the equipment address. The circuit comprises a dial switch 1, wherein pins on one side of the dial switch 1 are respectively connected with a coding resistor 2, and pins on the other side of the dial switch 1 are grounded; the other end of the coding resistor 2 is connected with an I/O port; the I/O port is also connected with a divider resistor 3, and the other end of the divider resistor 3 is connected with a stable power supply. In specific implementation, a protection resistor 4 is connected between the I/O port and the ground, and the resistance value of the protection resistor should ensure that the voltage value distributed after being connected in series with the voltage dividing resistor 3 does not exceed the maximum voltage value that the I/O port can bear. One side of the dial switch 1 is provided with four pins. The advantages are that: only one I/O port is occupied, the development period of designers is shortened, the material cost is reduced, the profit margin is increased, and the product is more competitive.

Prior art document 2 provides "an IP address coding circuit", where the dial switch circuit is electrically connected to an IO port of an expansion circuit, the expansion circuit is electrically connected to a rectangular connector, and the rectangular connector is connected to a control extension through a bus; the dial switch circuit comprises dial switches S1, S2, S3 and S4 and 4-bit exclusion resistors RP1, RP2, RP3 and RP4, wherein the dial switches S1, S2, S3 and S4 are grounded through the exclusion resistors RP1, RP2, RP3 and RP4 respectively. IP address coding circuit can realize the quick setting to control extension IP address through simpler operation.

Prior art document 3 provides "a circuit replacing a dial switch", in which two rows of contacts connectable to the dial switch are provided, each pair of contacts corresponds to one switch dial in the dial switch, and in the two rows of contacts aligned up and down, the contacts aligned up and down are connected or all disconnected by a wire, and if the contacts aligned up and down are set to be disconnected, the connecting wire is disconnected, or if the contacts aligned up and down are set to be a path, the contacts are connected by a wire. The utility model has the advantages that, owing to connect the contact or break off with the wire, replaced the dial switch in original circuit for the circuit board structure has obtained the simplification, reduces the manufacturing cost of circuit board simultaneously, has also stopped the emergence of dial-up error.

However, in the technology in the market, to realize the identification of the slot machine position of the unit of the SVG cabinet, a dial switch on a control board must be manually selected, and a system identifies each unit according to the result of the dial switch. The system will then configure the respective positions for each unit. Due to the limitation of software and hardware, the machine position identification mode needs manual operation every time, so that the complexity of the manufacturing process is increased, and corresponding risks are possibly brought by setting errors. Therefore, in order to ensure higher reliability of the system and reduce labor cost and risks, automatic identification of slot positions of SVG (reactive power compensation) cabinet units plays an important role.

Prior art document 1: CN204013486U

Prior art document 2: CN213399563U

Prior art document 3: CN201266559Y

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, the utility model provides a new connector structure.

According to the utility model discloses a connector structure of first aspect for the reactive power compensation cabinet, include: the power unit side plug and the cabinet body machine position side socket, the power unit side plug includes a plurality of integration terminal pin plugs, cabinet body machine position side socket includes a plurality of integration terminal pin sockets, under the state of plugging in, a plurality of integration terminal pin plugs with a plurality of integration terminal pin sockets form electrical connection, according to the machine position that cabinet body machine position side socket is located is different, the position and the quantity that are in the integration terminal pin socket of high potential and low potential are different in a plurality of integration terminal pin sockets.

According to the utility model discloses a connector structure of second aspect, power unit side plug still first uide pin and first guiding hole, cabinet body machine position side socket still includes second uide pin and second guiding hole, first uide pin with the second guiding hole cooperatees, the second uide pin with first guiding hole cooperatees, ensures to insert under the closure state a plurality of integration terminal pin plugs with electrical connection between a plurality of integration terminal pin sockets.

According to the connector structure of the third aspect of the present invention, the high potential is +24V, and the low potential is-24V.

According to the utility model discloses a connector structure of fourth aspect, power unit side plug is connected with the PCB board connector that sets up in the power unit.

According to the utility model discloses a connector structure of fifth aspect, cabinet body position side socket is connected with external power supply.

The utility model discloses automatic identification unit module identity number need not manual operation, reduces the complexity of manufacturing process and improves the fault-tolerant rate of system to utilize DI input dry contact signal to carry out identification, need not to increase extra device, reduce the maintenance cost, and can also judge whether switching power supply normally exports work.

Drawings

Fig. 1 is a block diagram showing an integrated connector plug of the present invention on the power unit side.

Fig. 2 is a structural diagram showing the integrated connector socket located on one side of the reactive power compensation cabinet of the present invention.

Fig. 3 is a diagram illustrating the definition of the PCB connector terminal in the power unit according to the present invention.

Fig. 4 is a schematic diagram of a PCB board DI input within a power cell of the present invention.

Fig. 5 is a schematic diagram of the configuration of the pins of the FPGA PCB in the power unit of the present invention.

Detailed Description

Next, in order to explain the present invention in more detail, a mode for carrying out the present invention will be explained with reference to the drawings. In the drawings, the same or corresponding reference numerals are used to designate the same or corresponding technical features.

Fig. 1 is a block diagram showing an integrated connector plug of the present invention on the power unit side. Fig. 2 is a structural diagram showing the integrated connector socket located on one side of the reactive power compensation cabinet of the present invention.

As shown in fig. 1 and fig. 2, the connector structure of the present invention includes a power unit side plug and a cabinet body station side socket shown in fig. 1. The utility model discloses a connector structure can be applied to and be provided with the reactive power compensation cabinet that supplies a plurality of for example SVG integrated unit module to insert the machine position of usefulness. And, through using the utility model discloses, can realize the function of automatic identification machine position serial number.

The power unit-side plug shown in fig. 1 includes a plurality of integrated terminal pin plugs. The figure shows 40 integrated terminal pin plugs 1 to 40 having different sizes. In the terminal pin plug region 101, plugs 7 to 38 having a small shape are provided. Of course, those skilled in the art will appreciate that the number and size of the integrated terminal pin plugs are not limited thereto. The power unit side plug further includes a guide hole 102 and a guide pin 103.

The cabinet machine side socket shown in fig. 2 includes a plurality of integrated terminal pin sockets. Corresponding to the plug, 40 integrated terminal pin sockets 1 to 40 having different sizes are shown in the drawing. In the terminal pin receptacle area 201, the receptacles 7 to 38 having a small shape are provided so as to correspond to the plugs 7 to 38. Of course, those skilled in the art will appreciate that the number and size of the integrated terminal pin receptacles is not limited thereto. The cabinet bay side socket further comprises a guide hole 202 and a guide pin 203.

In the inserted state, the integrated terminal pin plugs 1 to 40 are butted against the integrated terminal pin receptacles 1 to 40, respectively, to form electrical connections.

According to the invention, the positions and the number of the integrated terminal pin sockets at high potential and low potential in the integrated terminal pin sockets 1-40 are different according to the machine positions of the cabinet body machine position side socket in the reactive power compensation cabinet.

For example, for the cabinet body machine side socket located in the machine 1, the potential of the socket 9 therein is high potential, for example +24V, and the potential of the socket 10 is low potential, for example-24V. When a power unit (e.g. an SVG integrated unit module) is inserted into a corresponding machine position in the reactive power compensation cabinet, the integrated terminal pin plugs 9 and 10 on the power unit side are electrically conducted with the sockets 9 and 10, respectively, and a control unit arranged in the power unit can automatically identify the machine position where the power unit is located according to which plugs, such as the plugs 9 to 14, are located at high potential and low potential.

The power unit side plug of fig. 1 is a terminal integrated with a power unit, mounted on a unit such as an SVG integrated unit module, and needs to be connected with a PCB board connector described below with reference to fig. 3 by a cable.

Taking a maximum of 8 machine positions as an example, pins 9/10/11/12/13/14 in the terminal pin plug area 101 in the figure are respectively connected with pins J603_3/J603_4/J603_5/J603_6/J603_7/J603_8 in the figure 3 which is described later.

See the following correspondence in detail:

j603_3 corresponding to an integrated terminal pin plug 9 corresponding to 24V + (external power supply)

J603_4 corresponding to the integrated terminal pin plug 10 corresponding to 24V- (external power supply)

J603_5 corresponds to 24V + (external power supply) corresponding to the integrated terminal pin plug 11

J603_6 corresponding to the integrated terminal pin plug 12 corresponding to 24V- (external power supply)

J603_7 corresponding to the integrated terminal pin plug 13 corresponding to 24V + (external power supply)

J603_8 corresponding to the integrated terminal pin 14 corresponding to 24V- (external power supply)

Thus, the configuration and wiring of each unit are the same, and the number of socket connections is used to define the slot positions of the different units, as shown in fig. 2.

The definition of the integrated terminal pin socket in the terminal pin socket area 201 of fig. 2 is in a one-to-one correspondence with fig. 1.

The 9/10/11/12/13/14 pin sockets correspond to J603_3/J603_4/J603_5/J603_6/J603_7/J603_8, respectively, but the six signal pins are not all accessed with signal cables, but are artificially distinguished, and are accessed with corresponding cable signal interfaces according to a predetermined definition.

Taking 4 machine positions as an example, the following corresponding relations are shown in detail:

machine position No. 1: the integrated terminal pin socket 9 corresponds to 24V + (external power supply), the integrated terminal pin socket 10 corresponds to 24V- (external power supply), and other terminals 11/12/13/14 are vacant and are not connected with a signal cable.

No. 2 machine position: the integrated terminal pin socket 11 corresponds to 24V + (external power supply), the integrated terminal pin socket 12 corresponds to 24V- (external power supply), and other 9/10/13/14 are vacant and are not connected with a signal cable.

Machine position No. 3: the integrated terminal pin socket 13 corresponds to 24V + (external power supply), the integrated terminal pin socket 14 corresponds to 24V- (external power supply), and the other terminals are 9/10/11/12, and are not connected with signal cables when empty.

No. 4 machine position: the integrated terminal pin sockets 9 and 11 are correspondingly connected with 24V + (external power supply), the integrated terminal pin sockets 10 and 12 are correspondingly connected with 24V- (external power supply), and the other integrated terminal pin sockets 13/14 are not connected with signal cables when empty.

The operation of the present invention will be described with reference to fig. 3 to 5.

Fig. 3 is a diagram illustrating the definition of the PCB connector terminal in the power unit according to the present invention. The PCB connector J603 has 16 input terminals J603_1 to J603_ 16. Taking the maximum 8 machine positions as an example, the J603_3/J603_4/J603_5/J603_6/J603_7J603 \8is externally connected with signals of 24V +/24V-/24V +/24V-/24V +/24V-, respectively, and is correspondingly connected to the pins 9/10/11/12/13/14 in the terminal pin plug region 101 shown in FIG. 1. Corresponding to the interior of the power unit, EXDIP1/EXDIN1/EXDIP2/EXDIN2/EXDIP3/EXDIN3 of FIG. 4 were connected, respectively. Thus, a one-to-one correspondence is established:

j603_3 corresponding to EXDIP1 corresponding to integrated terminal needle 9 corresponding to 24V + (external power supply)

J603_4 corresponds to EXDIN1 and corresponds to 24V- (external power supply) for the integrated terminal pin 10

J603_5 corresponding to EXDIP2 corresponding to integrated terminal pin 11 corresponding to 24V + (external power supply)

J603_6 corresponds to EXDIN2 and corresponds to 24V- (external power supply) for the integrated terminal pin 12

J603_7 corresponding to EXDIP3 corresponding to integrated terminal pin 13 corresponding to 24V + (external power supply)

J603_8 corresponds to EXDIN3 and corresponds to 24V- (external power supply) for the integrated terminal pin 14

Fig. 4 is a schematic diagram of the DI input of the PCB board in the power unit of the present invention. After EXDIP1 and EXDIN1 in FIG. 4 are connected, the diode inside the optocoupler U602 is lighted by a forward voltage. The DI1 output is pulled high. The input pin E16 of the FPGA in fig. 5 is set to high, and the value is 1. The same principle is that: after EXDIP2 and EXDIN2/EXDIP3 and EXDIN3 are switched in, the internal diodes of the optocouplers U603 and U604 are lighted by forward voltage. The DI2/DI3 output is pulled high. Corresponding to the high position of input pins M15/M16 of the FPGA in FIG. 5, the values are respectively 1.

Fig. 5 is a schematic diagram of the configuration of the pins of the FPGA PCB in the power unit. EXDIP1 and EXDIN1 are accessed in FIG. 5, corresponding to DI1 high, pin E16 high, and CLK5 high 1.EXDIP2 and EXDIN2 are turned on, corresponding to DI2 high, corresponding to pin M15 high, and CLK6 high 1.EXDIP3 and EXDIN3 are turned on, corresponding to DI3 high, corresponding to pin M16 high, and CLK7 high 1.

Thus, there are 3 bit combination modes, and there can be 8 combination modes in total. In theory, a stand of 8 units can be arranged. If a machine level of only 4 cells is considered, the numbering information of the 4 cells may be predefined. 100/010/001/110, detailed in Table 1.

TABLE 1 Pre-coding table for a unit of a machine position

Table 1 is the numbering at the preset unit slots according to the understanding of fig. 3 and fig. 4 and 5:

no. 1 machine position: 100 represents that E16 is high, M15/M16 is low, which is equivalent to J603_3 to 24V + (external power supply), J603_4 to 24V- (external power supply), and J603_5/J603_6/J603_7J603 \ u 8 has no 24 power supply signal.

Other similar principles

Machine position No. 2: 010 represents M15 high, E16/M16 low is equivalent to J603_5 to 24V + (external power), J603_6 to 24V- (external power), J603_3/J603_4/J603_7J603 \ u 8 has no 24 power signal.

Machine position No. 3: 001 represents M16 high, E16/M15 low is equivalent to J603_7 to 24V + (external power), J603_8 to 24V- (external power), J603_3/J603_4/J603_5J603 \ 6 has no 24 power signal.

Machine position No. 4: 110 represents the high bits of E16 and M15, the low bit of M16 is equivalent to J603_3 and J603_5 both connected to 24V + (external power), J603_4 and J603_6 connected to 24V- (external power), and J603_7J603 \ u 8 has no 24 power signal connected.

In the above description, the maximum 8 machine positions are taken as an example, and the one-to-one correspondence between the numbers and the machine positions preset in table 1 is theoretically 8 combination methods, and 8 machine positions can be determined. However, as can be understood by those skilled in the art, the station number can be changed by itself, and can be changed along with the station number as long as the station number is predefined, so that the operability is strong, and the variability is strong. By analogy, in case of using a 4-digit number, a 4-power of 2, i.e. 16 machine digit numbers, can be defined.

Claims (5)

1. The utility model provides a connector structure for reactive power compensation cabinet, its characterized in that includes:

a power unit side plug and a cabinet body machine position side socket,

the power unit side plug includes a plurality of integrated terminal pin plugs,

the cabinet body machine position side socket comprises a plurality of integrated terminal pin sockets,

in the inserted state, the plurality of integrated terminal pin plugs and the plurality of integrated terminal pin sockets form electrical connection,

according to different machine positions of the machine position side sockets of the cabinet body, the positions and the number of the integrated terminal pin sockets at high potential and low potential are different.

2. The connector structure of claim 1,

the power unit side plug further comprises a first guide pin and a first guide hole, the cabinet body machine position side socket further comprises a second guide pin and a second guide hole, the first guide pin is matched with the second guide hole, the second guide pin is matched with the first guide hole, and the plurality of integrated terminal pin plugs and the plurality of integrated terminal pin sockets are electrically connected in an insertion state.

3. The connector structure of claim 1,

the high potential is +24V, and the low potential is-24V.

4. The connector structure of claim 1,

and the power unit side plug is connected with a PCB connector arranged in the power unit.

5. The connector structure of claim 1,

the cabinet body machine position side socket is connected with an external power supply.

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