CN210957051U

CN210957051U - Wiring terminal device and inverter

Info

Publication number: CN210957051U
Application number: CN201921652394.3U
Authority: CN
Inventors: 沈展良; 潘江陵
Original assignee: Sungrow Power Supply Co Ltd
Current assignee: Sungrow Power Supply Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-07-07
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a binding post device and dc-to-ac converter, wherein binding post device includes shell, wiring terminal subassembly, supporting seat and is used for the spacing cavity locating part of wiring terminal subassembly, is equipped with the opening that supplies the cavity of wiring terminal subassembly business turn over shell on the shell, and the wiring terminal subassembly can slide for the shell, cavity locating part and supporting seat fixed connection, when the wiring terminal subassembly slides to the cavity of shell inside, tray and cavity locating part butt. Through set up the opening on the shell, and the terminal subassembly of just working a telephone switchboard can slide by the opening and shift out the shell, need not to demolish the apron promptly, and the staff carries out wiring work in the shell outside, and then avoids the mistake to touch and pollutes the condition of electrical components in the shell, and the tray inwards moves the back of targetting in place, avoids the tray to inwards excessively slide and damages other parts in the dc-to-ac converter, consequently, has prolonged the life of dc-to-ac converter effectively.

Description

Wiring terminal device and inverter

Technical Field

The utility model relates to an inverter assembly technical field, in particular to binding post device. The utility model discloses still relate to an dc-to-ac converter including above-mentioned binding post device.

Background

The inverter contains direct current electric energy and changes alternating current electric energy into, functions such as communication signal transmission, as shown in fig. 1, traditional inverter includes the circuit board, the apron 04 of shell 03 and shutoff shell 03 installing port, circuit board fixed connection is in the shell 03 inner chamber, generally, binding post device also fixed connection is in the inner chamber of shell, binding post device includes tray 02 and installs the binding post 01 on tray 02, when binding post 01 and external wiring, need open apron 04, when not needing the wiring, seal apron 04 in the installing port position of shell 03.

However, when the wiring terminal 01 is connected to an external line, the cover plate 04 needs to be opened, the ac cable enters the housing 03 and is connected to the wiring terminal 01, and the hand is extended into the housing 03 to operate, so that the internal circuit board and other devices are easily polluted, and the internal structure of the inverter is damaged, so that the service life of the inverter is shortened.

Therefore, how to prolong the service life of the inverter is a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a binding post device to the life of extension dc-to-ac converter. Another object of the present invention is to provide an inverter including the above terminal device.

In order to achieve the above object, the utility model provides a wiring terminal device, including shell, wiring terminal assembly, it is right still to include the supporting seat and be used for the spacing cavity locating part of wiring terminal assembly, be equipped with the confession on the shell wiring terminal assembly business turn over the opening of the cavity of shell, wiring terminal assembly can for the shell slides, wiring terminal assembly includes the tray and installs wiring terminal on the tray, the tray with but pass through slide rail sliding connection on the supporting seat, the cavity locating part with supporting seat fixed connection works as wiring terminal assembly slides extremely when inside the cavity of shell, the tray with cavity locating part butt.

Preferably, the tray includes the tray body and installs the buckle of inner end in the tray body, binding post fixed connection be in on the upper surface of tray body, work as the tray stretches out when the inner chamber of shell, the buckle with the supporting seat inner end joint.

Preferably, the cavity limiting part is a threaded fastener, and the threaded fastener is in threaded connection with the inner end of the supporting plate.

Preferably, the number of the cavity limiting pieces is at least two, wherein the cavity limiting pieces are symmetrically arranged on two opposite sides of the inner end of the supporting plate.

Preferably, the supporting seat is located in the cavity of the outer shell, the supporting seat comprises a supporting plate, one of the supporting plate and the tray is provided with the sliding rail, the other one of the supporting plate and the tray is provided with a sliding groove matched with the sliding rail, and the sliding rail extends along the sliding direction of the tray.

Preferably, the supporting seat further comprises a base, the top end of the side wall of the base is fixedly connected with the supporting plate, and the bottom end of the side wall of the base is fixedly connected with the bottom wall of the shell.

Preferably, the inner end of the supporting plate is provided with an opening clamping groove, when the tray extends out of the inner cavity of the shell, the buckle is clamped at the bottom of the opening clamping groove, and the opening of the buckle clamping groove is located at the inner end of the supporting plate.

Preferably, the tray further comprises a locking member for locking the support plate and the tray.

Preferably, the retaining members are mounted on the tray, the outer end of the support plate is provided with two retaining member mounting holes for the retaining members to connect, the two retaining members are respectively a retracting end retaining member and a protruding end retaining member, and the retracting end retaining member and the protruding end retaining member are arranged along the sliding direction of the tray;

when the tray extends out of the inner cavity of the shell, the retraction end locking piece is connected with the locking piece mounting hole;

when the tray is positioned in the inner cavity of the shell, the protruding end locking piece is connected with the locking piece mounting hole.

Preferably, the locking member is a hand screw, and the locking member mounting hole is a threaded hole.

Preferably, the locking piece is a spring pin, and the spring pin can be inserted into the limiting hole for locking.

Preferably, the supporting seat and/or the tray are of an integrally formed structure.

Preferably, the terminal device is an ac terminal device or a communication terminal device.

An inverter comprises a circuit board and a wiring terminal device, wherein the wiring terminal device is any one of the wiring terminal devices, and the circuit board is located in an inner cavity of a shell.

Preferably, the portable electronic device further comprises a cover plate, the cover plate is fixedly connected with the top end of the shell, and the opening is located in the side wall of the shell.

In the technical scheme, the utility model provides a binding post device includes shell, wiring terminal subassembly, supporting seat and is used for the spacing cavity locating part of wiring terminal subassembly, is equipped with the opening that supplies the cavity of wiring terminal subassembly business turn over shell on the shell, and the wiring terminal subassembly can slide for the shell, cavity locating part and supporting seat fixed connection, and when the wiring terminal subassembly slides to the cavity of shell inside, tray and cavity locating part butt. When the terminal block requires external wiring, the terminal block is moved out through the opening position of the housing for wiring. When the wiring terminal does not need external wiring, the wiring terminal assembly is moved into the cavity of the shell through the opening, and the tray is limited through the cavity limiting piece, so that the tray is moved in place.

It can be known from the above description that in the binding post device that this application provided, through set up the opening on the shell, and the binding post subassembly can slide by the opening and shift out the shell, need not to demolish the apron promptly, the staff carries out the wiring work outside the shell, and then avoids the mistake to bump and pollute the condition of electrical components in the shell, and the tray inwards moves the back in place, avoids the tray to inwards excessively slide and damage other parts in the dc-to-ac converter, consequently, has prolonged the life of dc-to-ac converter effectively.

Drawings

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

Fig. 1 is a schematic structural view of a conventional inverter;

fig. 2 is a schematic structural view of the terminal assembly according to the embodiment of the present invention extending out of the inner cavity of the housing;

fig. 3 is a schematic structural view of the terminal assembly located in the inner cavity of the housing according to the embodiment of the present invention;

fig. 4 is a schematic structural view of a terminal assembly according to an embodiment of the present invention;

FIG. 5 is a schematic view of the terminal assembly of FIG. 4 in a direction A-A;

FIG. 6 is a schematic view of the terminal assembly of FIG. 4 in the direction B-B;

FIG. 7 is a front elevational view of the terminal assembly of FIG. 4;

FIG. 8 is a rear elevational view of the terminal assembly of FIG. 4;

fig. 9 is a cross-sectional view of a terminal assembly extending from a housing according to an embodiment of the present invention;

fig. 10 is a cross-sectional view of a terminal assembly in an interior cavity of a housing according to an embodiment of the present invention;

fig. 11 is a three-dimensional structural view of a terminal assembly according to an embodiment of the present invention;

fig. 12 is a schematic structural view of a supporting seat according to an embodiment of the present invention;

fig. 13 is a schematic structural view of another support seat according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a tray according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of another tray according to an embodiment of the present invention.

Wherein in FIGS. 1-15:

01. a wiring terminal; 02. a tray; 03. a housing; 04. a cover plate;

1. a wiring terminal;

2. a tray; 2-1, a tray body; 2-2, a chute; 2-3, a retraction end mounting hole; 2-4, an extending end mounting hole; 2-5, buckling; 2-6, inner end; 2-7, outer end;

3. a housing;

4. a supporting seat; 4-1, a support plate; 4-2, locking piece mounting holes; 4-3, a limiting piece mounting hole; 4-4, a base; 4-5, base mounting holes; 4-6, sliding rails;

5. a retraction end locking member; 6. a cavity limiting piece; 7. an end locking member is extended.

Detailed Description

The core of the utility model is to provide a wiring terminal device to the life of extension dc-to-ac converter. Another core of the present invention is to provide an inverter including the above terminal device.

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

Please refer to fig. 2 to fig. 15.

In a specific embodiment, the utility model discloses the binding post device that specific embodiment provided includes shell 3, wiring terminal assembly, supporting seat 4 and is used for the spacing cavity locating part 6 of wiring terminal assembly, is equipped with the opening that supplies the cavity of wiring terminal assembly business turn over shell on the shell, and the wiring terminal assembly can slide for the shell, cavity locating part 6 and supporting seat 4 fixed connection, when the wiring terminal assembly slides inside the cavity of shell 3,

tray

2 and 6 butts of cavity locating part.

Specifically, the cavity limiting member 6 is fixedly connected to the supporting seat 4, specifically, the cavity limiting member 6 is disposed on the supporting plate 4-1, and specifically, may be disposed at an inner end of the supporting plate 4-1, i.e., an end far away from the opening. In order to improve the limiting accuracy, preferably, at least two cavity limiting parts 6 are provided. The cavity limiting piece 6 can be a limiting protrusion adhered to the support plate 4-1.

The shell 3 is provided with an opening for the wiring terminal assembly to enter and exit the cavity of the shell 3, and the opening is arranged on the side wall of the cavity in order to facilitate wiring.

Preferably, the wiring terminal assembly comprises a tray 2 and a wiring terminal 1 installed on the tray 2, the tray 2 and the supporting seat 4 are slidably connected through a sliding rail 4-6, the tray 2 comprises a tray body 2-1 and a buckle 2-5 installed at the inner end 2-6 of the tray body 2-1, the wiring terminal 1 is fixedly connected to the upper surface of the tray body 2-1, when the tray 2 extends out of the inner cavity of the shell 3, the buckle 2-5 is clamped with the inner end of the supporting seat 4 to limit the tray 2, and the inner end 2-6 of the tray body 2-1 is the end, far away from the opening, of the tray body 2-1 located at the retraction position. The wiring terminal 1 is fixedly connected to the upper surface of the tray body 2-1.

The terminal assembly is slidable relative to the housing 3, and in particular, the terminal assembly is slidably coupled to the housing 3.

When the wiring terminal 1 needs external wiring, the wiring terminal assembly is moved out through the opening position of the shell 3 for wiring, and when the buckle 2-5 is slid to be clamped with the inner end of the supporting seat 4, the sliding of the tray is stopped, as shown in fig. 2. When no external wiring is required for the terminal 1, the terminal assembly is moved through the opening into the cavity of the housing 3, as shown in fig. 3.

As can be seen from the above description, in the terminal device provided in the embodiment of the present application, the opening is formed in the housing 3, and the terminal assembly can slide out of the housing 3 through the opening, i.e. the cover plate does not need to be removed, so that the worker can perform the wiring operation outside the housing 3, thereby avoiding the situation of mistakenly touching and polluting the electrical components in the housing 3, and after the tray 2 is moved inward to the proper position, the tray 2 is prevented from excessively sliding inward to damage other components in the inverter, and therefore, the service life of the inverter is effectively prolonged.

In particular, the terminal device may be an ac terminal device or a communication terminal device. When the device is an alternating current wiring terminal device, the wiring terminal is an alternating current terminal; in the case of a communication terminal device, the connection terminal is a communication connection terminal.

When alternating current wiring is carried out, the wiring terminal 1 extends out of the case, so that the operation is convenient; the wiring can be exchanged without opening the cover, so that the pollution inside the case is avoided, and the sealing reliability is ensured.

When the wires are not connected, the tray 2 can be partially contracted into the shell 3, and the design size of the shell 3 is reduced.

In a specific embodiment, one of the tray 2 and the supporting seat 4 is provided with a sliding rail 4-6, the other is provided with a sliding groove 2-2 matched with the sliding rail 4-6, and the sliding rail 4-6 extends along the sliding direction of the tray 2.

As shown in fig. 12 to 15, the supporting seat 4 is located in the cavity of the housing 3, the supporting seat 4 includes a supporting plate 4-1, one of the supporting plate 4-1 and the tray 2 is provided with a sliding rail 4-6, and the other one is provided with a sliding groove 2-2 matching with the sliding rail 4-6. When the terminal assembly is retracted, the overall occupied space is small. Specifically, the number of the slide rails 4 to 6 may be two, and the two slide rails 4 to 6 are disposed on the left and right sides of the tray 2, wherein the two sides of the tray 2 are the left and right sides of the operator facing the opening position.

In a specific embodiment, the supporting seat 4 further comprises a base 4-4, the bottom wall of the base 4-4 is fixedly connected with the bottom wall of the cavity, the top end of the side wall of the base 4-4 is fixedly connected with the supporting plate 4-1, specifically, the base 4-4 is provided with a base mounting hole 4-5, and the base mounting hole 4-5 is penetrated through by a threaded fastener to be fixedly connected with the shell 3. The supporting seat 4 is fixed with the shell 3 through the base 4-4, so that the supporting seat 4 is effectively fixed.

In one embodiment, there are two cavity position-limiting members 6, and the two cavity position-limiting members 6 are symmetrically disposed on two opposite sides of the inner end of the supporting plate 4-1.

In order to facilitate the assembly and disassembly of the terminal device, the cavity limiting part 6 is preferably a threaded fastener, and the threaded fastener is in threaded connection with the inner end of the support plate 4-1.

An opening clamping groove is formed in the inner end of the supporting plate 4-1, when the tray 2 extends out of the inner cavity of the shell 3, the buckle 2-5 is clamped at the bottom of the opening clamping groove, and the opening of the clamping groove 2-5 is located in the inner end of the supporting plate 4-1. Specifically, during assembly, the cavity limiting part 6 is installed after the tray 2 is installed on the supporting plate 4-1, specifically, a limiting part installing hole 4-3 for installing the cavity limiting part 6 is formed in the supporting plate 4-1, the tray 2 and the supporting plate 4-1 are in sliding fit with the sliding groove 2-2 through the sliding rail 4-6, the cavity limiting part 6 is in contact with the inner end 2-6 of the tray 2 to form an upper limit position, and the buckle 2-5 is in contact with the bottom of the open clamping groove to form a lower limit position. The tray 2 does not fall off during sliding, and slides only between the upper limit position and the lower limit position.

In one embodiment, the terminal device further comprises a locking member for locking the support plate 4-1 and the tray 2, and in particular, the locking member may be a snap 2-5 structure. By providing locking means for locking the support plate 4-1 and the tray 2, the situation of sliding when the wiring and connecting terminal device is inside the cavity is avoided.

Further, the retaining member is installed on the tray 2, the outer end of the supporting plate 4-1 is provided with two retaining member installation holes 4-2 capable of allowing the retaining member to be connected, the two retaining members are respectively a protruding end retaining member 7 and a protruding end retaining member 5, the protruding end retaining member 7 and the protruding end retaining member 5 are arranged along the sliding direction of the tray 2, and the tray 2 is provided with protruding end installation holes 2-4 used for installing the protruding end retaining member 7 and retracting end installation holes 2-3 used for installing the protruding end retaining member 5.

When the tray 2 is extended out of the inner cavity of the housing 3, the protruding end locking member 7 is coupled with the locking member mounting hole 4-2.

When the tray 2 is positioned in the inner cavity of the housing 3, the protruding end locker 5 is coupled with the locker installation hole 4-2. Specifically, the locking piece is a hand-tightening screw, and the locking piece mounting hole 4-2 is a threaded hole. The locking piece 7 at the extending end is matched with the locking piece mounting hole 4-2 and is in an extending state of the tray 2; the protruding end locking part 7 is matched with the locking part mounting hole 4-2 and is in a contraction state of the tray 2, and the stroke of the tray 2 is accurately controlled through the tray 2 and the guide rail through the locking part.

Specifically, the number of the locking member and the locking member mounting hole 4-2, preferably 2 locking members are combined with 1 locking member mounting hole 4-2. Or 1 locking member and 1 locking member mounting hole 4-2, or a plurality of locking members and a plurality of locking member mounting holes 4-2 according to the stroke requirement, according to the actual requirement of a user.

Of course, the locking member may be a conventional screw.

Specifically, the locking piece can also be a spring pin, and the spring pin can be inserted into the limiting hole for locking and is inserted into the limiting hole for locking through the spring pin.

In addition to the above aspects, preferably, the support base 4 and/or the tray 2 are formed integrally. Because supporting seat 4 and/or tray 2 are integrated into one piece structure, supporting seat 4 and/or tray 2 can one shot forming, improve binding post device production efficiency, improve alternating current binding post packaging efficiency simultaneously.

The application provides an inverter includes circuit board, binding post device, and wherein, binding post device is any kind of binding post device of above-mentioned, and the circuit board is located the inner chamber of shell 3. The foregoing describes a specific structure of the terminal device, and the present application includes the terminal device as described above, and also has the above technical effects.

Specifically, the inverter further comprises a cover plate, the cover plate is fixedly connected with the top end of the shell 3, and the opening is located in the side wall of the shell 3. Avoiding the conflict between the opening position and the cover plate and being convenient for sealing the cover plate.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wiring terminal device comprises a shell (3) and a wiring terminal component, and is characterized by also comprising a supporting seat (4) and a cavity limiting piece (6) for limiting the wiring terminal component, the shell (3) is provided with an opening for the wiring terminal component to enter and exit the cavity of the shell (3), the terminal assembly is slidable relative to the housing (3), and comprises a tray (2) and a terminal (1) mounted on the tray (2), the tray (2) and the supporting seat (4) are connected in a sliding way through sliding rails (4-6), the cavity limiting piece (6) is fixedly connected with the supporting seat (4), when the wiring terminal assembly slides into the cavity of the shell (3), the tray (2) is abutted to the cavity limiting piece (6).

2. The terminal device according to claim 1, characterized in that the tray (2) comprises a tray body (2-1) and a buckle (2-5) arranged at the inner end (2-6) of the tray body (2-1), the terminal (1) is fixedly connected to the upper surface of the tray body (2-1), and when the tray (2) extends out of the inner cavity of the shell (3), the buckle (2-5) is clamped with the inner end of the supporting seat (4).

3. The terminal device according to claim 1, characterized in that the cavity stop (6) is a threaded fastener, and the support base (4) comprises a support plate (4-1), and the threaded fastener is screwed into the inner end of the support plate (4-1).

4. The terminal device according to claim 1, wherein the support base (4) comprises a support plate (4-1) and at least two cavity stoppers (6), wherein the cavity stoppers (6) are symmetrically arranged at two opposite sides of the inner end of the support plate (4-1).

5. The terminal device according to claim 2, characterized in that the support (4) is located in a cavity of the housing (3), the support (4) comprises a support plate (4-1), one of the support plate (4-1) and the tray (2) is provided with the slide rail (4-6), the other is provided with a slide groove (2-2) which is matched with the slide rail (4-6), and the slide rail (4-6) extends along the sliding direction of the tray (2).

6. The terminal device according to claim 5, characterized in that the support base (4) further comprises a base (4-4), the top end of the side wall of the base (4-4) is fixedly connected with the support plate (4-1), and the bottom end is fixedly connected with the bottom wall of the housing (3).

7. The terminal device according to claim 5, characterized in that the inner end of the support plate (4-1) is provided with an open slot, when the tray (2) extends out of the inner cavity of the housing (3), the buckle (2-5) is clamped on the bottom of the open slot, and the opening of the slot of the buckle (2-5) is located at the inner end of the support plate (4-1).

8. A terminal device according to claim 5, characterized in that it further comprises locking means for locking the support plate (4-1) and the tray (2).

9. The terminal device according to claim 8, wherein the locking member is mounted on the tray (2), the outer end of the support plate (4-1) is provided with a locking member mounting hole (4-2) to which the locking member can be attached, the locking member is two, respectively, a retracted end locking member (7) and an extended end locking member (5), and the retracted end locking member (7) and the extended end locking member (5) are arranged in the sliding direction of the tray (2);

when the tray (2) extends out of the inner cavity of the shell (3), the retraction end locking piece (7) is connected with the locking piece mounting hole (4-2);

when the tray (2) is positioned in the inner cavity of the shell (3), the protruding end locking piece (5) is connected with the locking piece mounting hole (4-2).

10. A terminal device according to claim 9, characterized in that the locking member is a hand screw and the locking member mounting hole (4-2) is a threaded hole.

11. The wiring terminal device according to claim 8, wherein the locking member is a spring pin, and the spring pin can be inserted into and locked with the limiting hole.

12. A terminal device according to claim 1, characterised in that the support (4) and/or the tray (2) are of one-piece construction.

13. A terminal device according to any one of claims 1 to 12, characterised in that the terminal device is an ac terminal device or a communication terminal device.

14. An inverter comprising a circuit board, a terminal device, characterized in that the terminal device is as claimed in any one of claims 1-13, the circuit board being located in an inner cavity of the housing (3).

15. The inverter according to claim 14, further comprising a cover plate fixedly connected to a top end of the housing (3), wherein the opening is located in a side wall of the housing (3).