CN211506474U

CN211506474U - Expansion card adapter structure for frequency converter function expansion

Info

Publication number: CN211506474U
Application number: CN202020550668.4U
Authority: CN
Inventors: 姜蓝
Original assignee: Shenzhen Xilin Electrical Technology Co ltd
Current assignee: Shenzhen Xilin Electrical Technology Co ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-09-15
Anticipated expiration: 2030-04-14

Abstract

The utility model discloses an extension card switching card structure for converter function extension, include: the control panel connection interface, a plurality of expansion card expansion interfaces and power signal processing unit, control panel connection interface pegs graft on the expansion card connection interface of converter control panel thereby realize the electric connection of converter control panel and expansion card, expansion card connection interface, control panel connection interface, expansion card expansion interface is 26 pins and all includes data signal pin and power signal pin, the data signal pin on the control panel connection interface walks the line through PCB and directly is connected with the data signal pin that corresponds on the expansion card expansion interface, the power signal pin on the control panel connection interface passes through power signal processing unit and the corresponding power signal pin electric connection on the expansion card expansion interface, power signal processing unit is used for eliminating power supply interference. The utility model discloses can promote the extending capability of converter.

Description

Expansion card adapter structure for frequency converter function expansion

Technical Field

The utility model relates to a converter technical field especially relates to an expansion card switching card structure for converter function extension.

Background

On the existing commonly used frequency converter equipment, various terminals facilitating user interaction are provided, such as digital quantity input, digital quantity output, analog quantity input and analog quantity output, high-frequency pulse input and output, communication and the like, and through the client terminals, users can better use the frequency converter. However, in some specific applications, the standard user terminal cannot meet all requirements, so most brands of frequency converters provide an extended function, and the control board is standard with a connector, so that more functions can be realized by connecting an extension card, such as adding a plurality of other functions of the existing digital-analog input/output, encoder signal access, DP-PROFIBUS communication, CANopen communication, and the like. By using the expansion card, the frequency converter can meet the use requirements of most customers, but in consideration of cost and necessity, the control panel is generally reserved with one or two expansion ports, one expansion card only has one function in the traditional situation, and the requirement of the customers cannot be met if meeting the condition that multiple requirements are needed, in this situation, the expansion card integrating the needed functions can be opened again, but the specially developed expansion card only aims at specific customers, is poor in universality and is inconvenient to operate in production management.

Accordingly, the prior art is deficient and needs improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, solve in the converter use because the problem of the function extension card that control panel extension card interface quantity is not enough to lead to unable simultaneous installation customer's demand provides an extension card switching card structure for converter function extension.

The technical scheme of the utility model as follows: the utility model provides an extension card switching card structure for converter function extension, include: the control panel connection interface is inserted into an expansion card connection interface of a frequency converter control panel so as to realize the electric connection between the frequency converter control panel and the expansion card, the expansion card connection interface, the control panel connection interface and the expansion card expansion interface are all 26 pins and all comprise data signal pins and power signal pins, the data signal pins on the control panel connection interface are directly connected with corresponding data signal pins on the expansion card expansion interface through PCB wiring, the power signal pins on the control panel connection interface are electrically connected with corresponding power signal pins on the expansion card expansion interface through the power signal processing unit, and the power signal processing unit is used for eliminating power supply interference.

Further, the number of the expansion card expansion interfaces is 3.

Furthermore, the expansion card adapter is rectangular, and the control panel connection interface and the 3 expansion card expansion interfaces are respectively arranged on four edges of the expansion card adapter.

Further, the power signal processing unit comprises a plurality of DC-DC power isolation modules.

Further, the data signal pin includes: the device comprises an analog signal pin, a digital signal pin, a pulse signal pin, a master-slave communication 1 signal pin, a master-slave communication 2 signal pin and a CAN communication signal pin.

Furthermore, the expansion card connection interface and the expansion card expansion interface both adopt a dual-in-line female PIN with the PIN pitch of 2.0 mm and the specification of 2 × 13 and 26PIN, and the control board connection interface adopts a dual-in-line PIN with the PIN pitch of 2.0 mm and the specification of 2 × 13 and 26 PIN.

Adopt above-mentioned scheme, the utility model discloses an extension card switching card with many interfaces can promote the expansion ability of converter, avoids appearing the problem that extension card interface quantity is not enough for it is more convenient to use and the compatibility can be better.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a circuit diagram of the connection interface of the control panel of the expansion card adapter card and the connection circuit of the expansion card expansion interface of the present invention.

Fig. 3A to fig. 3E are circuit diagrams of the power signal processing unit of the expansion card adapter of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, in this embodiment, the present invention provides an expansion card adapter structure for frequency converter function expansion, including: a control panel connecting interface 21, a plurality of expansion card expansion interfaces 22 and a power supply signal processing unit 23, the control panel connecting interface 21 is inserted into the expansion card connecting interface 11 of the frequency converter control panel 1 so as to realize the electrical connection between the frequency converter control panel 1 and the expansion card adapter card 2, the expansion card connection interface 11, the control panel connection interface 21 and the expansion card expansion interface 22 are 26 pins and comprise a data signal pin and a power signal pin, the data signal pins on the control board connection interface 21 are directly connected with the corresponding data signal pins on the expansion card expansion interface 22 through PCB traces, the power signal pins on the control board connection interface 21 are electrically connected with the corresponding power signal pins on the expansion card expansion interface 22 through the power signal processing unit 23, and the power signal processing unit 23 is used for eliminating power interference. In this embodiment, the number of the expansion card expansion interfaces is 3. The expansion card adapter card 2 is rectangular, and the control panel connecting interface 21 and the 3 expansion card expansion interfaces 22 are respectively arranged on four edges of the expansion card adapter card 2.

The following table shows the PIN definitions of the expansion card connection interface, the control board connection interface and the expansion card expansion interface of this embodiment, where PINs 1-PIN 9 are power signals, and PINs 10-PIN 26 are data signals:

with continuing reference to fig. 2, fig. 3A to fig. 3E and the above table, in the present embodiment, the data signal pin includes: the device comprises an analog signal pin, a digital signal pin, a pulse signal pin, a master-slave communication 1 signal pin, a master-slave communication 2 signal pin and a CAN communication signal pin. The power signal processing unit comprises a plurality of DC-DC power isolation modules. The DC-DC isolation module in the power signal processing unit 23 includes: the input ends of the DC-DC isolation modules are electrically connected with the control board connection interface J4, the output ends of the DC-DC isolation modules are electrically connected with the three expansion card expansion interfaces J1, J2 and J3, the power signal processing unit 23 can eliminate power interference among the interfaces, and the stability of the working power supply of the expansion card adapter card 2 is improved. In this embodiment, the control board connection interface J4 and the interface pins of the three expansion card expansion interfaces J1, J2, and J3 have the same pin sequence, and have better compatibility.

Referring to fig. 1 to fig. 3E, the expansion card connection interface 11 and the expansion card expansion interface 22 both use a dual in-line PIN header with a PIN pitch of 2.0 mm and specification 2 × 13 and 26 PINs, and the control board connection interface 21 uses a dual in-line PIN header with a PIN pitch of 2.0 mm and specification 2 × 13 and 26 PINs. The 2.0 mm pitch is structurally smaller relative to the row of busbars with a 2.54 mm pitch, which may be more space efficient. The adoption of the form of dual in-line facilitates the installation of the expansion card adapter card 2 and the stability of the electric signal transmission.

In this scheme, expansion card adaptor 2 can pass through control panel connection interface 21 realize with the electric connection of converter control panel 1, expansion card adaptor 2 extends the signal to 3 knecks again, and wherein data signal's pin directly walks the line through the PCB and connects, and power signal passes through power signal processing unit 23 keeps apart, has promoted the extension performance, makes converter control panel 1 has been pegged graft and can have 3 expansion interfaces behind the expansion card adaptor 2, expansion card expansion interface 22 can insert the expansion card as required, perhaps also can be in the control panel connection interface of pegging graft another expansion card adaptor on expansion card expansion interface 22, further promotes the expansion ability.

To sum up, the utility model discloses an expansion card switching card with many interfaces can promote the expansion capability of converter, avoids appearing the problem that expansion card interface quantity is not enough for it is more convenient to use and the compatibility can be better.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An expansion card adapter structure for frequency converter function expansion, comprising: the control panel connection interface is inserted into an expansion card connection interface of a frequency converter control panel so as to realize the electric connection between the frequency converter control panel and the expansion card, the expansion card connection interface, the control panel connection interface and the expansion card expansion interface are all 26 pins and all comprise data signal pins and power signal pins, the data signal pins on the control panel connection interface are directly connected with corresponding data signal pins on the expansion card expansion interface through PCB wiring, the power signal pins on the control panel connection interface are electrically connected with corresponding power signal pins on the expansion card expansion interface through the power signal processing unit, and the power signal processing unit is used for eliminating power supply interference.

2. The expansion card adapter structure for frequency converter function expansion according to claim 1, wherein the number of expansion card expansion interfaces is 3.

3. The structure of claim 2, wherein the expansion card adapter is rectangular, and the control board connection interface and the 3 expansion card expansion interfaces are respectively disposed on four sides of the expansion card adapter.

4. The expansion card adapter structure for frequency converter function expansion according to claim 1, wherein the power signal processing unit comprises a plurality of DC-DC power isolation modules.

5. The expansion card adapter structure for frequency converter function expansion according to claim 1 or 2, wherein the data signal pin comprises: the device comprises an analog signal pin, a digital signal pin, a pulse signal pin, a master-slave communication 1 signal pin, a master-slave communication 2 signal pin and a CAN communication signal pin.

6. The structure of claim 1 or 2, wherein the expansion card connection interface and the expansion card connection interface are both made of dual in-line PINs with a PIN pitch of 2.0 mm and 26 PINs in2 x 13 specification, and the control board connection interface is made of dual in-line PINs with a PIN pitch of 2.0 mm and 26 PINs in2 x 13 specification.