CN213907042U - PLC fixed baseplate and PLC system - Google Patents

Abstract

The utility model provides a PLC fixed baseplate and a PLC system; the PLC fixed baseplate comprises a baseplate body and a mounting assembly; the mounting assembly is arranged on the bottom plate body; the mounting assembly comprises a first fixing plate, a second fixing plate and at least two circuit boards; a first limiting clamping groove is formed in one side face, close to the second fixing plate, of the first fixing plate; a second limiting clamping groove is formed in one side face, close to the first fixing plate, of the second fixing plate; each circuit board is provided with a first connector and a second connector; the second connector on the front circuit board is matched with the first connector on the rear circuit board to form a linear first IO module connector; the first IO module connector is used for connecting an IO module; the utility model discloses the configuration circuit board on the bottom plate to utilize the connector on the circuit board to realize being connected with PLC, the quantity of IO module in the accessible extension circuit board realizes extending PLC, makes this PLC PMKD's general performance and flexibility strengthen greatly.

Description

PLC fixed baseplate and PLC system

Technical Field

The utility model belongs to the technical field of the PLC installation, especially, relate to a PLC PMKD and PLC system.

Background

At present, when a PLC module is installed, the PLC module is first installed on a fixed bottom plate, and then the fixed bottom plate is installed on a cabinet, so that the installation of the PLC module is realized; the conventional PLC fixed baseplate has the following defects: the configuration quantity of the bottom plates is not flexible; different bottom plates are required to be configured for different PLC modules, so that the variety of the bottom plates is various, the general performance of the bottom plates is poor, and certain production cost can be increased.

SUMMERY OF THE UTILITY MODEL

In view of the above shortcomings in the prior art, an object of the present invention is to provide a PLC mounting base plate and a PLC system, which are used for solving the problems of poor universality of the mounting base plate and inflexible configuration quantity of the mounting base plate of the existing PLC.

To achieve the above and other related objects, the present invention provides a PLC mounting base plate, including: the mounting assembly comprises a bottom plate body and a mounting assembly; the mounting assembly is arranged on the bottom plate body and used for mounting an IO module of a PLC; wherein the mounting assembly comprises: the first fixing plate, the second fixing plate and the at least two circuit boards are arranged on the first fixing plate; the first fixing plate and the second fixing plate are both vertically arranged on the bottom plate body; a first limiting clamping groove is formed in one side face, close to the second fixing plate, of the first fixing plate; a second limiting clamping groove is formed in one side face, close to the first fixing plate, of the second fixing plate; two ends of the circuit boards respectively slide along the first limiting clamping groove and the second limiting clamping groove, and the at least two circuit boards are sequentially clamped between the first limiting clamping groove and the second limiting clamping groove in a front-back manner; each circuit board is provided with a first connector and a second connector; the second connector on the former circuit board is matched with the first connector on the latter circuit board to form a linear first IO module connector; the first IO module connector is used for connecting the IO module.

In an embodiment of the present invention, the first connector on the circuit board at the head end is connected to the first switching module or the CPU module of the PLC; and a second connector on the circuit board at the tail end is connected with a second switching module.

In an embodiment of the present invention, the circuit board is provided with: a first screw hole; the first screw hole is used for fixing the circuit board on the bottom plate body through a screw.

In an embodiment of the present invention, the first fixing plate is provided with at least one second screw hole at regular intervals; the second screw hole is used for fixing the IO module on the first fixing plate through a screw; at least one fastener is uniformly arranged on the first fixing plate at intervals; the buckle is used for being connected with the lock catch on the IO module, so that the IO module is fixed on the first fixing plate.

In an embodiment of the present invention, the bottom plate body is further provided with: a third fixing plate; the third fixing plate is vertically arranged on the bottom plate body, and at least one first clamping hole and at least one second clamping hole are formed in the third fixing plate; the at least one first clamping hole is used for clamping a clamping piece on a CPU module of the PLC so as to fix the CPU module on the third fixing plate; one the second clamping hole corresponds to one circuit board, and the second clamping hole is used for being clamped with a clamping piece on the IO module, so that the IO module is fixed on the third fixing plate.

In an embodiment of the present invention, the bottom plate body is further provided with: a third screw hole and a ground hole; the third screw hole is used for fixing the bottom plate body on the machine cabinet through a screw; the grounding hole is used for grounding the bottom plate body through a grounding wire.

In an embodiment of the present invention, the bottom plate body is made of an aluminum alloy material by extrusion molding.

The utility model provides a PLC system, include: the PLC fixed bottom plate and the IO module of the PLC; the IO modules are installed on the PLC fixed base plate, and the number of the IO modules is at least one.

In an embodiment of the present invention, the method further includes: a third fixing plate; the third fixing plate is vertically arranged on the bottom plate body, and at least one first clamping hole and at least one second clamping hole are formed in the third fixing plate; the at least one first clamping hole is used for clamping a clamping piece on a CPU module of the PLC so as to fix the CPU module on the third fixing plate; the IO module is provided with: the third connector, the fourth connector, a fourth screw hole, a lock catch, a clamping piece and a grounding elastic piece; the third connector is matched with the fourth connector to form a linear second IO module connector, and the second IO module connector is connected with the first IO module connector; the fourth screw hole is used for fixing the IO module on the first fixing plate through a screw; the lock catch is used for being connected with the buckle on the first fixing plate, so that the IO module is fixed on the first fixing plate; the clamping piece is used for clamping with the second clamping hole so as to fix the IO module on the third fixing plate; the grounding elastic sheet is contacted with the bottom plate body.

In an embodiment of the present invention, the method further includes: a cabinet and a CPU module of the PLC; the bottom plate body is mounted on the machine cabinet through screws; the CPU module is installed on the bottom plate body.

As above, PLC PMKD and PLC system, following beneficial effect has:

(1) compared with the prior art, the utility model discloses configuration circuit board on the bottom plate to realize being connected with PLC with the connector on the circuit board, the quantity of IO module in the accessible extension circuit board realizes extending PLC, makes this PLC PMKD's general performance and flexibility strengthen greatly.

(2) The utility model discloses can also continue the quantity of extension bottom plate or the quantity of connector through switching module on a PLC PMKD's basis to make this PLC PMKD's quantity have more the flexibility.

(3) The utility model discloses stable in structure is reliable, has effectively avoided because PLC is not hard up relative this PMKD, leads to the problem of breaking down, has guaranteed the reliable and stable nature of this PLC work.

Drawings

Fig. 1 is a schematic structural diagram of a PLC mounting base plate according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of the extended PLC mounting base plate according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of an extended PLC mounting base plate according to another embodiment of the present invention.

Fig. 4 is a schematic diagram of an extended PLC mounting base plate according to another embodiment of the present invention.

Fig. 5 is a schematic diagram of an extended PLC mounting base plate according to another embodiment of the present invention.

Fig. 6 is a schematic structural diagram of an IO module according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of the PLC system according to an embodiment of the present invention.

Description of the reference symbols

1 bottom plate body

101 ground spring contact surface

2 mounting assembly

201 first fixing plate

202 second fixing plate

203 circuit board

204 first limit slot

205 second limit slot

206 first IO Module connector

2061 first connector

2062 second connector

207 first screw hole

208 second screw hole

209 fastener

210 third fixing plate

211 first fastening hole

212 second clip hole

213 third screw hole

214 ground hole

3 IO Module

301 second IO module connector

3011 third connector

3012 fourth connector

302 fourth screw hole

303 locking buckle

304 fastener

305 grounding elastic sheet

4 first switching module

5 CPU module

6 second switching module

71 PLC fixed baseplate

72 IO Module

73 CPU module

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure herein.

It should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, changes of the ratio relationship, or adjustment of the size should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the efficacy that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", and "one", "front", "back", "first", "last", etc. referred to in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and the changes or adjustments of the relative relationship thereof are not essential to the technical content of the present invention, but are also considered as the scope of the present invention.

The utility model discloses a PLC PMKD and PLC system are used for solving the problem that the PMKD commonality of current PLC is poor, bottom plate configuration quantity is not nimble enough. The following will explain in detail the principle and the implementation of the utility model discloses a PLC PMKD and PLC system, make the technical personnel in the field need not creative work can understand the utility model discloses a PLC PMKD and PLC system.

See fig. 1-7. Compared with the prior art, the PLC fixing bottom plate and the PLC system provided by the embodiment have the advantages that the circuit board is configured on the bottom plate, the connection with the PLC is realized by the connector on the circuit board, the number of IO modules in the PLC can be expanded by expanding the number of the circuit boards, and the universality and flexibility of the PLC fixing bottom plate are greatly enhanced; the utility model can also continue to expand the number of the bottom plates or the number of the connectors through the switching module on the basis of a PLC fixed bottom plate, thereby ensuring that the number of the PLC fixed bottom plate has more flexibility; the utility model discloses stable in structure is reliable, has effectively avoided because PLC is not hard up relative this PMKD, leads to the problem of breaking down, has guaranteed the reliable and stable nature of this PLC work.

As shown in fig. 1 to 6, in an embodiment, the PLC mounting base plate of the present invention includes a base plate body 1 and a mounting assembly 2.

Specifically, the installation component 2 is arranged on the bottom plate body 1 and used for installing an IO module 3 of a PLC.

As shown in fig. 1, in one embodiment, the mounting assembly 2 includes a first fixing plate 201, a second fixing plate 202 and at least two circuit boards 203.

Specifically, the first fixing plate 201 and the second fixing plate 202 are both vertically arranged on the bottom plate body 1; a first limiting clamping groove 204 is formed in one side surface, close to the second fixing plate 202, of the first fixing plate 201; a second limiting clamping groove 205 is formed in one side surface, close to the first fixing plate 201, of the second fixing plate 202; the two ends of the circuit boards 203 slide along the first limiting clamping groove 204 and the second limiting clamping groove 205 respectively, and the at least two circuit boards 203 are sequentially clamped between the first limiting clamping groove 204 and the second limiting clamping groove 205 from front to back.

In addition, referring to fig. 1, when the PLC fixing backplane is assembled, the circuit board 203 is slid from right to left to the upper side of the backplane body 1 along the first and second limit card slots 204 and 205, and is sequentially arranged in front and back (or sequentially arranged in left and right) above the backplane body 1.

As shown in fig. 1, in an embodiment, each of the circuit boards 203 is provided with a first connector 2061 and a second connector 2062.

Specifically, the second connector 2062 on the former circuit board 203 is matched with the first connector 2061 on the latter circuit board 203 to form a linear first IO module connector 206; the first IO module connector 206 is used to connect the IO module 3 in fig. 5.

It should be noted that, as shown in fig. 1, the two connectors (the first connector 2061 and the second connector 2062) on one circuit board 203 are arranged in a staggered manner, that is, the extension lines of the two connectors in the length direction are not on the same straight line (on two straight lines parallel to each other), while the extension lines of the second connector 2062 on the previous circuit board 203 and the first connector on the next circuit board 203 are on the same straight line, that is, the first IO module connector 206 is formed, so as to implement the connection with the IO module 3.

It should be noted that, on the circuit board 203, the structure setting of the connector plays a role of "take up and go down", on one hand, the electrical connection between two adjacent circuit boards 203 and the communication connection between two adjacent IO modules 3 are realized (if on the circuit board 203, a linear IO module connector is directly formed by two connectors (a first connector 2061 and a second connector 2062) and is connected with an IO module 3, that is, one circuit board 203 corresponds to one IO module, a connection line needs to be additionally added between two adjacent IO modules to realize the communication connection between two adjacent IO modules, similarly, a connection line needs to be additionally added between two adjacent circuit boards 203, otherwise, the circuit boards 203 are mutually independent); on the other hand, for the structural design of the connectors on the circuit board 203, the first connector 2061 arranged on the frontmost circuit board 203 and the second connector 2062 arranged on the rearmost circuit board 203 are all suspended, and at this time, other structures can be connected through the first connector 2061 arranged on the frontmost circuit board 203 and the second connector 2062 arranged on the rearmost circuit board 203, so as to further expand the number of the PLC fixed backplane or the freely expanded IO modules 3, and the like.

As shown in fig. 2 to 5, in an embodiment, the first connector 2061 on the first-end (i.e. the frontmost arranged) circuit board 203 (corresponding to the IO module 1 in fig. 2 to 4, wherein 1 denotes the 1 st IO module 3) is connected to the first interface module 4 (see fig. 2 and 4) or the CPU module 5 (see fig. 3 and 5) of the PLC; the second connector 2062 on the circuit board 203 (corresponding to the IO module N in fig. 2 to 4, where N denotes an nth IO module 3, N is an integer, and N is greater than or equal to 2) at the end (i.e., arranged at the rearmost) is connected to the second adaptor module 6 (see fig. 3 and 5).

It should be noted that, by the arrangement of the first switching module 4 and the second switching module 6, the number of the PLC backplane is more flexible, and the IO module 3 can be freely extended or other switching modules (corresponding to the first switching module 4 and the second switching module 6) can be extended, so that the universality of the PLC backplane is improved, and the extension of the PLC is further realized.

It should be noted that, the first adaptor module 4 and the second adaptor module 6 are common adaptor structures in the field, and the specific structural composition and the working principle thereof are not limitations of the present invention, so that the details are not repeated herein.

As shown in fig. 1, in one embodiment, the circuit board 203 is provided with a first screw hole 207.

Specifically, the first screw hole 207 is used for fixing the circuit board 203 on the bottom plate body 1 through a screw, so that the circuit board 203 is stably mounted on the bottom plate body 1, and the working performance of the PLC is prevented from being affected due to looseness in the subsequent working process.

As shown in fig. 1, in an embodiment, at least one second screw hole 208 is uniformly spaced on the first fixing plate 201.

Specifically, the second screw hole 208 is used for fixing the IO module 3 on the first fixing plate 201 by a screw.

It should be noted that a second screw hole 208 corresponds to an IO module 3.

It should be noted that, the IO module 3 is fixed on the first fixing plate 201 by screws, so that looseness of the IO module 3 in a subsequent working process is reduced, and stable working performance of the PLC is ensured.

Preferably, the diameter of the second screw hole 208 is 3 mm.

As shown in fig. 1, in an embodiment, at least one fastener 209 is disposed on the first fixing plate 201 at regular intervals.

Specifically, the buckle 209 is used for being connected with a lock catch on the IO module, so that the IO module 3 is fixed on the first fixing plate 201.

It should be noted that one of the latches 209 corresponds to one of the IO modules 3.

It should be noted that, through the connection between the buckle 209 and the latch on the IO module 3, the IO module 3 is stably mounted on the first fixing plate 201, so that the looseness of the base plate body 1 relative to the base plate body in the subsequent working process is avoided, and the stable and reliable working performance of the PLC is ensured.

As shown in fig. 1, in an embodiment, a third fixing plate 210 is further disposed on the bottom plate body 1.

Specifically, the third fixing plate 210 is vertically disposed on the bottom plate body 1, and the third fixing plate 210 is provided with at least one first fastening hole 211 and at least one second fastening hole 212.

It should be noted that the at least one first clamping hole 211 is used for clamping a clamping member on the CPU module 5 of the PLC, so that the CPU module 5 is fixed on the third fixing plate 210.

It should be noted that, one of the second clamping holes 212 corresponds to one of the circuit boards 203, and the second clamping hole 212 is used for clamping with a clamping member on the IO module 3, so that the IO module 3 is fixed on the third fixing plate 210.

As shown in fig. 6, in an embodiment, the IO module 3 is provided with a third connector 3011, a fourth connector 3012, a fourth screw hole 302, a latch 303, a clip 304, and a grounding elastic piece 305.

Specifically, the third connector 3011 and the fourth connector 3012 are matched to form a linear second IO module connector 301, and the second IO module connector 301 is connected to the first IO module connector 206 to implement connection between the IO module 3 and the backplane body 1.

In an embodiment, the fourth screw hole 302 is used for fixing the IO module 3 on the first fixing plate 201 by a screw; specifically, the stable connection between the IO module 3 and the first fixing plate 201 is realized through screws, the second screw hole 208 and the fourth screw hole 302 disposed on the first fixing plate 201.

In an embodiment, the latch 303 is configured to connect with the latch 209 on the first fixing plate 201, so as to fix the IO module 3 on the first fixing plate 201; specifically, the lock 303 is connected with the buckle 209, so that the IO module 3 is locked on the first fixing plate 201, and a stable connection between the two is achieved.

In an embodiment, the clip 304 is configured to be clipped to the second clipping hole 212, so that the IO module 3 is fixed on the third fixing plate 210; specifically, the IO module 3 is stably mounted on the third fixing plate 210 by the engagement between the clip 304 and the second clip hole 212.

It should be noted that the second screw hole 208, the buckle 209 and the second clip hole 212 are all arranged to stably mount the IO module 3 on the bottom plate body 1, so as to prevent the IO module from loosening and failing in the subsequent working process, which affects the working performance of the PLC; specifically, the second screw hole 208 is matched with the fourth screw hole 302, and stable connection is realized under the action of a screw; the buckle 209 is matched with the lock catch 303 to realize locking connection; the second engaging hole 212 engages with the engaging member 304.

In one embodiment, the grounding spring 305 contacts the bottom plate body 1.

Specifically, a part of the bottom plate body 1 is a grounding elastic sheet contact surface 101 for contacting and connecting with the grounding elastic sheet 305, so as to reliably ground the IO module 3. Furthermore, a grounding elastic sheet is also arranged on the CPU module 5, and the grounding elastic sheet is also in contact with the grounding elastic sheet contact surface 101 on the bottom plate body 1, so as to ensure reliable grounding of the CPU module 5.

As shown in fig. 1, in an embodiment, the bottom plate body 1 is further provided with a third screw hole 213 and a ground hole 214.

Specifically, the third screw hole 212 is used for fixing the bottom plate body 1 on a cabinet by a screw; the grounding hole 214 is used for grounding the bottom plate body 1 through a grounding wire so as to ensure that the whole machine is reliably grounded.

In an embodiment, the bottom plate body 1 is formed by extrusion of an aluminum alloy material.

As shown in fig. 7, in an embodiment, the PLC system of the present invention includes the PLC fixing base plate 71 and the IO module 72 of the PLC.

Specifically, the IO modules 72 are mounted on the PLC fixing base plate 71, and the number of the IO modules 72 is at least one.

It should be noted that the specific structure of the IO module 72 can be seen in fig. 6.

In one embodiment, a cabinet (not labeled in FIG. 3) and a CPU module 73 of the PLC are also included.

Specifically, the bottom plate body is mounted on the machine cabinet through screws; the CPU module 73 is mounted on the bottom plate body.

It should be noted that the operating principle of the PLC fixing base plate 71 in the PLC system is the same as that of the PLC fixing base plate, and details are not repeated herein.

To sum up, compared with the prior art, the PLC fixing base plate and the PLC system of the present invention have the advantages that the circuit board is configured on the base plate, and the connection with the PLC is realized by using the connector on the circuit board, so that the number of IO modules in the PLC can be extended by extending the number of the circuit board, and the versatility and flexibility of the PLC fixing base plate are greatly enhanced; the utility model can also continue to expand the number of the bottom plates or the number of the connectors through the switching module on the basis of a PLC fixed bottom plate, thereby ensuring that the number of the PLC fixed bottom plate has more flexibility; the utility model has stable and reliable structure, effectively avoids the problem of failure caused by the looseness of the PLC relative to the fixed bottom plate, and ensures the stable reliability of the PLC operation; therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. A PLC PMKD, comprising: the mounting assembly comprises a bottom plate body and a mounting assembly;

the mounting assembly is arranged on the bottom plate body and used for mounting an IO module of a PLC; wherein the mounting assembly comprises: the first fixing plate, the second fixing plate and the at least two circuit boards are arranged on the first fixing plate;

the first fixing plate and the second fixing plate are both vertically arranged on the bottom plate body;

a first limiting clamping groove is formed in one side face, close to the second fixing plate, of the first fixing plate;

a second limiting clamping groove is formed in one side face, close to the first fixing plate, of the second fixing plate;

two ends of the circuit boards respectively slide along the first limiting clamping groove and the second limiting clamping groove, and the at least two circuit boards are sequentially clamped between the first limiting clamping groove and the second limiting clamping groove in a front-back manner;

each circuit board is provided with a first connector and a second connector;

the second connector on the former circuit board is matched with the first connector on the latter circuit board to form a linear first IO module connector; the first IO module connector is used for connecting the IO module.

2. The PLC backplane according to claim 1, wherein a first connector on the circuit board of a head end is connected to a first switch-over module or a CPU module of the PLC; and a second connector on the circuit board at the tail end is connected with a second switching module.

3. The PLC backplane according to claim 1, wherein the circuit board has disposed thereon: a first screw hole;

the first screw hole is used for fixing the circuit board on the bottom plate body through a screw.

4. The PLC fixing base plate according to claim 1, wherein the first fixing plate is provided with at least one second screw hole at regular intervals;

the second screw hole is used for fixing the IO module on the first fixing plate through a screw;

at least one fastener is uniformly arranged on the first fixing plate at intervals;

the buckle is used for being connected with the lock catch on the IO module, so that the IO module is fixed on the first fixing plate.

5. The PLC fixing base plate according to claim 1, wherein the base plate body is further provided with: a third fixing plate;

the third fixing plate is vertically arranged on the bottom plate body, and at least one first clamping hole and at least one second clamping hole are formed in the third fixing plate;

the at least one first clamping hole is used for clamping a clamping piece on a CPU module of the PLC so as to fix the CPU module on the third fixing plate;

one the second clamping hole corresponds to one circuit board, and the second clamping hole is used for being clamped with a clamping piece on the IO module, so that the IO module is fixed on the third fixing plate.

6. The PLC fixing base plate according to claim 1, wherein the base plate body is further provided with: a third screw hole and a ground hole;

the third screw hole is used for fixing the bottom plate body on the machine cabinet through a screw;

the grounding hole is used for grounding the bottom plate body through a grounding wire.

7. The PLC fixing base plate of claim 1, wherein the base plate body is extruded from an aluminum alloy material.

8. A PLC system, comprising: the PLC backplane of any of claims 1-7 and an IO module of a PLC;

the IO modules are installed on the PLC fixed base plate, and the number of the IO modules is at least one.

9. The PLC system of claim 8, further comprising: a third fixing plate;

the third fixing plate is vertically arranged on the bottom plate body, and at least one first clamping hole and at least one second clamping hole are formed in the third fixing plate;

the at least one first clamping hole is used for clamping a clamping piece on a CPU module of the PLC so as to fix the CPU module on the third fixing plate;

the IO module is provided with: the third connector, the fourth connector, a fourth screw hole, a lock catch, a clamping piece and a grounding elastic piece; wherein the content of the first and second substances,

the third connector is matched with the fourth connector to form a linear second IO module connector, and the second IO module connector is connected with the first IO module connector;

the fourth screw hole is used for fixing the IO module on the first fixing plate through a screw;

the lock catch is used for being connected with the buckle on the first fixing plate, so that the IO module is fixed on the first fixing plate;

the clamping piece is used for clamping with the second clamping hole so as to fix the IO module on the third fixing plate;

the grounding elastic sheet is contacted with the bottom plate body.

10. The PLC system of claim 8, further comprising: a cabinet and a CPU module of the PLC; wherein the content of the first and second substances,

the bottom plate body is arranged on the machine cabinet through screws;

the CPU module is installed on the bottom plate body.

Images