CN205264873U - Secondary circuit contact group of interchangeable installation - Google Patents

Abstract

The utility model provides a secondary circuit contact group of interchangeable installation, includes still including joining in marriage the mounting panel of dress on the circuit breaker casing that a plurality of casings for the decoration that set up side by side carry out the contact group monomer that the electricity is connected with being used for with the wire to, decorate to have with casing and contact group monomer and allow their interchangeables ground to install the same appearance profile on the mounting panel and install the fixed knot structure. Can cancel the inside structure that is used for installing conducting strip and supporting screw and uses like this, realized to use the free quantity of needs appropriate allocation contact group according to market and user, not only make to decorate and organize with the contact, its appearance and installation fixed knot construct the secondary circuit contact group that uses with the conventionality and keep unanimous, and the demand contradiction of having solved wiring capacity constant growth and can not having wasted, can effective reduce cost, the small household multiple -effect heat pump system saves resources, the integrality of both having guaranteed the secondary circuit structure has also reduced conducting strip and the together waste of screw.

Description

Interchangeable mounting of secondary circuit contact sets

technical field

The utility model belongs to the field of low-voltage electrical appliances, and relates to a secondary circuit contact group of a circuit breaker, in particular to a secondary circuit contact group that can be interchangeably installed according to the use requirements of the circuit breaker, and can be used in various types such as basic type and multi-functional type. Universal circuit breaker.

Background technique

The secondary circuit contact group is the electrical contact device in the control circuit of the universal circuit breaker, which is directly used by the user to connect and control the internal components of the circuit breaker. The reliability and convenience of its structure directly affect the user's use experience and the secondary circuit. structural safety. The existing secondary circuit contact group includes many wiring structures for realizing the electrical connection between the wire and the conductive sheet, and most of them adopt the screw-fixed wiring method to improve the wiring reliability. In a conventional secondary circuit contact group, the contact seat generally includes an integral dynamic seat and a static seat, and a plurality of wire connection seats are respectively installed in the wire connection seat cavities on the static seat. However, the commonly used universal circuit breaker includes basic Type and multi-function type. The current secondary circuit contact group adopts a consistent overall shape structure in order to achieve the consistency of the shape and structure of various circuit breakers. Carry out product design, that is to say, the static seat of the contact piece is configured with the number of wire connection seats as much as possible. However, in the actual use process, users generally use basic circuit breakers, and most of the secondary circuit contact groups are not used, resulting in a lot of waste of wire connection seats, which does not meet the requirements of energy saving and environmental protection, and virtually This increases user costs. If the waste is simply reduced by canceling the original unused wire connection sockets, it will inevitably have a certain adverse effect on the product structure and appearance.

Contents of the invention

The problem to be solved by the utility model is to provide a secondary circuit contact group that avoids waste, saves resources, is convenient and practical, and can be installed interchangeably according to the use requirements of the circuit breaker. The contact group that has the same outline and can be installed interchangeably is used. The single body and decorative shell not only reduce the user cost, but also avoid the adverse effect on the structure and appearance of the circuit breaker caused by simply canceling the original unused contact group.

The technical solution adopted to solve the above problems is:

An interchangeably installed secondary circuit contact set includes a mounting plate 1 that can be fitted on a circuit breaker housing, and the secondary circuit contact set also includes a plurality of decorative shells 2 arranged side by side and The contact group monomer 3 is used for electrical connection with the wire, and the decorative housing 2 and the contact group monomer 3 have the same structure that allows them to be interchangeably installed on the mounting board 1 Outline outline and installation and fixing structure.

Preferably, the contact group monomer 3 includes a housing base 30 and a housing base installation groove 301 arranged at one end of the housing base 30, the contact group monomer 3 is connected to the mounting plate 1 through the housing base installation groove 301; the decoration The housing 2 includes a housing 20 and a housing installation groove 201 arranged at one end of the housing 20. The decorative housing 2 is connected to the mounting plate 1 through the housing installation groove 201; the housing seat installation groove 301 and the housing installation groove 201 have the same structure.

Preferably, the side of the mounting plate 1 is also provided with a limit clip 11, and on the shell seat 30 of the contact group monomer 3 near the shell seat installation groove 301, there is a shell seat limit groove 306 that cooperates with the limit clip 11 , on the shell 20 of the decorative shell 2, close to the shell installation groove 201, there is a shell limit groove 206 that cooperates with the limit clip 11; the shell base limit groove 306 and the shell limit groove 206 The structure is the same.

Preferably, it also includes a front-end fixed bar 4, which is fixedly connected to the other end of the housing base 30 of the contact group monomer 3 and the other end of the shell 20 of the decorative shell 2, so that The contact group monomers 3 and the decorative housing 2 arranged side by side are arranged neatly.

Preferably, the other end of the shell seat 30 of the contact group monomer 3 is provided with a shell seat fixing hole 305, the other end of the shell 20 of the decorative shell 2 is provided with a shell seat fixing hole 205, and the shell seat fixing hole 305 The structure and height of the housing fixing hole 205 are the same, and the front fixing bar 4 is provided with a fixing protrusion that interferes with the housing fixing hole 205 and the housing base fixing hole 305 .

Preferably, the contact group monomer 3 also includes a plurality of wiring assemblies arranged in the housing base 30, and the housing base 30 is provided with multiple sets of wiring operation holes 302 corresponding to the plurality of wiring assemblies, wires Socket 303 and wiring slot 304 .

Preferably, the contact group monomer 3 has a stepped outline, the wire insertion holes 303 are respectively arranged on the planes of the steps at all levels, and the wiring operation holes 302 are respectively arranged at the vertical sides of the steps at all levels. On the surface; the decorative housing 2 has the same stepped outline as the contact group monomer 3 .

Preferably, the bottom of one end of the contact group monomer 3 has a vertical surface, and the wiring slot 304 is arranged on the vertical surface; the bottom of one end of the decorative housing 2 has a The same vertical surface of the housing at the same position of the contact group monomer 3, the planes of the various steps of the decorative housing 2 and the elevations of the various steps are respectively closed panels, and the vertical surface of the housing is a closed panel. panel.

Preferably, the wiring assembly is a screw-type wiring structure, which includes a screw, a wire crimping piece and a conductive piece, the screw can drive the crimping piece and the conductive piece to be compressed, and the wiring operation hole 302 faces the operating end of the screw.

Preferably, the wiring assembly is a screw-free wiring structure, which includes a crimping reed and a conductive sheet, the crimping reed is in a ring shape, one end of the crimping reed is fixedly connected to the conductive sheet, and the other end is wrapped around and connected to the conductive sheet. A crimping space is formed between them, and the elastic force of the crimping reed can drive it to be pressed against the conductive sheet. The crimping reed is provided with an operating surface to expand the crimping space for wiring, and the wiring operation hole 302 faces the operation of the crimping reed. noodle.

The advantage of the secondary circuit contact group that can be installed interchangeably in the utility model is that by adopting the structure of the contact group monomer and the decorative shell that have the same outline and can be installed interchangeably, the interior for installing the conductive sheet is eliminated. And the structure for supporting screws, realize the reasonable configuration of the number of contact group monomers according to the market and user needs, not only make the decorative contact group, its shape and installation and fixing structure consistent with the conventional secondary circuit contact group , and solve the contradiction between increasing wiring capacity and non-waste demand, can effectively reduce manufacturing and use costs, save resources, not only ensure the integrity of the secondary circuit structure, but also reduce the waste of conductive sheets and supporting screws.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of the overall structure of an interchangeably installed secondary circuit contact group of the present invention.

FIG. 2 is a schematic perspective view of the overall structure of a single contact group in the secondary circuit contact group shown in FIG. 1 .

FIG. 3 is a schematic perspective view of the overall structure of the decorative housing in the secondary circuit contact group shown in FIG. 1 .

detailed description

Below in conjunction with the embodiments given in accompanying drawings 1 to 3, further illustrate the specific implementation of the interchangeably installed secondary circuit contact group of the present invention, which can be seen more clearly from the description of the embodiments shown in the accompanying drawings Advantages and features of the utility model.

Referring to the embodiment shown in Fig. 1, the interchangeably installed secondary circuit contact group of the present invention includes a mounting plate 1 that can be fitted on the circuit breaker housing, and also includes a plurality of decorative housings 2 arranged side by side and a contact group monomer 3 for electrical connection with wires, and the decorative housing 2 and the contact group monomer 3 have features that allow them to be interchangeably mounted on the mounting board 1 The same outline and installation structure. The "interchangeable" mentioned here means that the installation and fixing configuration of the contact group monomer 3 and the decorative housing 2 can be replaced with each other, and the original unused contact group monomer can be easily replaced by the decorative housing 2. The decoration shell can be replaced by the single contact group, as shown in Figure 1, its appearance and installation structure are consistent with the conventional secondary circuit contact, and the internal unused conductive The strips and supporting screws are directly removed from the contact group, so as to not only ensure the integrity of the secondary circuit structure, but also avoid waste and save costs.

The decorative casing 2 is consistent with the installation and fixing structure of the contact group monomer 3, wherein the installation and fixing structure of the contact group monomer 3 includes a housing base 30 and a housing base installation groove 301 arranged at one end of the housing base 30, the contact The group unit 3 is connected to the mounting plate 1 through the housing mounting groove 301; the installation and fixing structure of the decorative housing 2 includes the housing 20 and the housing mounting groove 201 arranged at one end of the housing 20, the decorative housing 2 is connected to the mounting plate 1 through the housing installation groove 201, and the installation and fixing structure of the housing installation groove 201 is the same as the housing mounting groove 301 of the contact group monomer 3, and the decorative housing 2 has The shape structure is the same as that of the contact group monomer 3 . The contact group monomer 3 is installed on the mounting plate 1 through the shell seat mounting groove 301 on the shell seat 30, and the decorative shell 2 is also mounted on the mounting plate 1 through the shell mounting groove 201 thereon. Therefore, the housing mounting groove 301 and the housing mounting groove 201 are interchangeable, that is, their specific structures including shape and size are the same. Therefore, this secondary circuit contact group that can be interchangeably installed according to the use requirements of the circuit breaker has the following beneficial features: first, the mounting plate 1 can be designed and manufactured according to the maximum number of contact group monomers 3 that can accommodate the maximum number of contact groups to meet The use demand of maximizing the wiring capacity; second, in the actual production and use process, the number of contact group monomers 3 can be reduced and configured according to the current needs, so as to avoid waste; third, the reduced part that does not need electrical wiring is made of The body 2 is replaced, so that the overall consistency and overall appearance of the contact group device are not affected, and the operation is convenient. In order to further enhance the connection strength of the fixed installation of the contact group monomer 3 and the decorative housing 2, a preferred solution is shown in Figures 1 to 3:

The side of the mounting plate 1 is also provided with a limit clip 11, and one end of the shell seat 30 of the contact group monomer 3 near the shell seat installation groove 301 is provided with a shell seat limit groove 306 that cooperates with the limit clip 11. The housing 20 of the housing 2 is provided with a housing limiting slot 206 which is matched with the limiting clip 11 on one end close to the housing installation slot 201 ; The interchangeably installed secondary circuit contact group also includes a front-end fixed bar 4, the front-end fixed bar 4 is connected to the other end of the housing seat 30 of the contact group monomer 3 and the shell of the decorative housing 2. The other end of the body 20 is fixedly connected, the contact group monomer 3 and the decorative housing 2 are fixed through the mounting plate 1, and the contact group monomer 3 and the decorative housing 2 arranged side by side are arranged neatly through the front-end fixing bar 4. The other end of the shell seat 30 of the contact group monomer 3 is provided with a shell seat fixing hole 305, and the other end of the shell 20 of the decorative shell 2 is provided with a shell seat fixing hole 205, and the shell seat fixing hole 305 is connected with the shell seat fixing hole. The structure and height of 205 are the same, and the front fixed bar 4 is provided with a fixing protrusion that is interference fit with the housing fixing hole 205 and the housing base fixing hole 305 . The specific structure that the front end fixed horizontal bar 4 is fixedly connected with each housing seat fixing hole 305 and the housing fixing hole 205 can have various, such as commonly used screw connection structure.

In the embodiment shown in FIG. 2, the contact group monomer 3 includes a housing base 30, a plurality of wiring assemblies (not shown in the figure), a left side plate 31 and/or a right side plate 32; the left side plate 31 and the right side plate 32 are fixedly connected with the housing base 30 and form a cavity for installing wiring components; the housing base 30 is provided with multiple sets of wiring operation holes 302, wire insertion holes 303 and wiring slots corresponding to multiple wiring components respectively 304. The wiring assembly is a device for providing wiring, and the external wires (not shown) connected to the secondary circuit (not shown in the figure) must be connected with the wiring assembly. Each contact group unit 3 is installed with a plurality of wiring assemblies through the housing base 30 , as shown in FIG. 1 and FIG. 2 , four wiring assemblies can be installed.

The wiring assembly can be installed in the cavity of the wiring assembly formed by the fixed coupling of the left side plate 31 and the right side plate 32 with the housing base 30 by using a known structure, and the installation includes known mechanical coupling and electrical connection. Connection, in order to facilitate the installation and connection, adopt the structure that the left side plate 31 and the right side plate 32 are fixedly connected with the housing seat 30, including three specific ways: one way is shown in Figure 1 and Figure 2, the left side plate 31, The right side plate 32 and the shell seat 30 are three independent components, and after the assembly of the wiring assembly is completed, the left side plate 31 and the right side plate 32 are clamped and fixed on the shell seat 30; another way (not shown in the figure) ) Yes, the left side plate 31 and the housing base 30 are integrally formed, that is, only the right side plate 32 and the housing base 30 are two independent components, and the right side plate 32 is clamped and fixed to the housing base 30 after the wiring assembly is assembled ; The third way (not shown in the figure) is that the right side plate 32 is integrally formed with the shell seat 30, that is, only two independent components of the left side plate 31 and the shell seat 30 are included. After the assembly of the wiring assembly is completed, the left The side plate 31 is clamped and fixed on the shell base 30 .

The outline can have many specific structural forms, and a preferred form is shown in Figure 1 and Figure 2: the contact group monomer 3 has a stepped outline, and the planes A of each step are respectively set There are wire jacks 303, and wiring operation holes 302 are respectively provided on the facades B of the steps at all levels; the bottom of one end of the contact group monomer 3 has a vertical surface C, and the vertical surface C is provided with wiring slots 304 . The advantage of the stepped profile is that it is convenient for wiring operations, and at the same time, plane A and elevation B can be used to limit the movement of wires. The wiring slot 304 is used for the wiring operation inside the contact group monomer 3. The internal wiring structure of the contact group monomer 3 is related to the configuration quantity and installation position of the contact group monomer 3. Therefore, through the wiring slot 304, it can be adapted to different Various internal wiring operations are required for the number of configurations and different mounting locations.

The adaptable wiring assembly of the utility model can have various forms. A preferred method is: the wiring assembly is a screw-type wiring structure, which includes screws, wire crimping sheets and conductive sheets, the screws can drive the crimping sheets and the conductive sheet to be pressed tightly, and the wiring operation hole 302 faces the operation of the screw Terminal; when the external wire is inserted into the wire jack 303, it reaches the position between the wire crimping sheet and the conductive sheet, and then a wiring tool (such as a screwdriver, not shown in the figure) is inserted into the wiring operation hole 302 and the operating end of the screw is turned The head drives the crimping piece to move, and finally compresses the wire between the crimping piece and the conductive sheet. Another preferred way is: the wiring assembly is a screw-free wiring structure, which includes a crimping reed and a conductive sheet, the crimping reed is ring-shaped, one end of the crimping reed is fixedly connected to the conductive sheet, and the other end is surrounded After that, a crimping space is formed between the conductive sheet, and the elastic force of the crimping reed can drive it to be pressed against the conductive sheet. The crimping reed is provided with an operating surface for enlarging the crimping space for wiring, and the wiring operation hole 302 faces the crimping The operating surface of the wire reed; when the wiring tool (such as a screwdriver, not shown in the figure) is inserted into the wiring operation hole 302, the wire pressing reed can be pried to separate from the conductive sheet, and then the external wire can be inserted into the wire jack 303 to make the It reaches the position between the crimping reed and the conductive sheet, and finally the wiring tool is pulled out, and the elastic force of the crimping reed can automatically compress the wire between the crimping reed and the conductive sheet.

In the embodiment shown in FIG. 3, the decorative housing 2 has the same shape and structure as the contact group monomer 3 shown in FIG. 2, and is provided with a housing installation groove 201. Its structure It is the same as the housing mounting groove 301 of the contact group monomer 3 . No wiring assembly is installed in the decorative housing 2, so its manufacturing cost is very low, and no electrical connection is required. Since the decorative shell 2 and the contact group monomer 3 have the same shape and structure, the interchangeability with the contact group monomer 3 can be realized. Of course, this interchangeability only lies in its outline , external dimension, installation position, and interchangeability of installation structure, excluding the interchangeability of its functions. Minor differences that affect the stated interchangeability requirements include minor structures on plane A, elevation B, and elevation C as described below.

The decorative casing 2 has the same stepped outline as the contact group monomer 3 , and the plane A of each step and the elevation B of each step of the decorative casing 2 are closed panels respectively. The bottom of the decorative housing 2 has a housing vertical surface C that is the same as the contact group monomer 3, and the vertical surface C is a closed panel. The so-called closed panel here is preferably not provided with holes or grooves on the plane A, the vertical surface B and the vertical surface C. Of course, structures similar to wire jacks, wiring operation holes, and wiring slot holes are not excluded, but these wire jacks, Wiring operation holes and wiring slots may mislead users to perform wrong wiring operations.

The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For a person of ordinary skill in the technical field to which the utility model belongs, without departing from the concept of the utility model, some simple deduction or substitutions can also be made, which should be regarded as belonging to the protection scope of the utility model.

Claims (10)

1. An interchangeably installed secondary circuit contact group, including a mounting plate (1) that can be fitted on the circuit breaker housing, characterized in that: the secondary circuit contact group also includes a plurality of side-by-side arrangements The decorative housing (2) and the contact group monomer (3) for electrical connection with the wire, and the decorative housing (2) and the contact group monomer (3) have allowable They can be interchangeably installed on the same outline and installation and fixing structure on the installation board (1). 2. The interchangeably installed secondary circuit contact group according to claim 1, characterized in that: the contact group monomer (3) includes a housing base (30) and a Shell seat mounting groove (301), the contact group monomer (3) is connected with the mounting plate (1) through the shell seat mounting groove (301); the decorative shell (2) includes a shell (20) and is arranged on The housing installation groove (201) at one end of the housing (20), the decorative housing (2) is connected to the mounting plate (1) through the housing installation groove (201); the housing seat installation groove (301) and the housing installation groove (201) has the same structure. 3. The interchangeably installed secondary circuit contact group according to claim 2, characterized in that: the side of the mounting plate (1) is also provided with a limit clamp (11), and the contact group monomer (3) On the shell seat (30) close to the shell seat installation groove (301) end is provided with the shell seat limit groove (306) which cooperates with the limit clamp (11), and the shell (20) of the decorative shell (2) The upper end close to the housing installation groove (201) is provided with a housing limiting groove (206) that cooperates with the limiting clamp (11); the structure of the housing seat limiting groove (306) and the housing limiting groove (206) same. 4. The interchangeably installed secondary circuit contact group according to claim 2, characterized in that it also includes a front-end fixed bar (4), and the front-end fixed bar (4) is connected with the contact group monomer ( 3) The other end of the shell seat (30) is fixedly connected with the other end of the housing (20) of the decorative housing (2), so that the contact group monomer (3) and the decorative housing (2) arranged side by side )Orderly rows. 5. The interchangeably installed secondary circuit contact group according to claim 4, characterized in that: the other end of the housing seat (30) of the contact group monomer (3) is provided with a housing seat fixing hole (305 ), the other end of the housing (20) of the decorative housing (2) is provided with a housing fixing hole (205), and the structure and height of the housing fixing hole (305) and the housing fixing hole (205) are the same, and the front end The fixing bar (4) is provided with a fixing protrusion which interferes with the housing fixing hole (205) and the housing base fixing hole (305). 6. The interchangeably installed secondary circuit contact group according to claim 1, characterized in that: the contact group monomer (3) also includes a plurality of wiring assemblies arranged in the housing seat (30), The shell base (30) is provided with multiple sets of wiring operation holes (302), wire insertion holes (303) and wiring slots (304) respectively corresponding to multiple wiring assemblies. 7. The interchangeably installed secondary circuit contact group according to claim 6, characterized in that: the contact group monomer (3) has a stepped profile, and the wire insertion hole (303) They are respectively arranged on the planes of the steps at all levels, and the wiring operation holes (302) are respectively arranged on the elevations of the steps at all levels; the decorative housing (2) has the same The stepped shape outline. 8. The interchangeably installed secondary circuit contact group according to claim 7, characterized in that: the bottom of one end of the contact group monomer (3) has a vertical surface, and the wiring slot (304 ) is arranged on the vertical surface; the bottom of one end of the decorative housing (2) has the same vertical surface of the housing at the same position as the contact group monomer (3), and the decorative The planes of the steps of the casing (2) and the facades of the steps of all levels are respectively closed panels, and the vertical surface of the casing is a closed panel. 9. The interchangeably installed secondary circuit contact group according to claim 6, characterized in that: said wiring assembly is a screw-type wiring structure, which includes a screw, a wire pressing piece and a conductive piece, and the screw can be driven to press The wire sheet and the conductive sheet are pressed tightly, and the wiring operation hole (302) faces the operation terminal of the screw. 10. The interchangeably installed secondary circuit contact group according to claim 6, characterized in that: the wiring assembly is a screw-free wiring structure, which includes a crimping reed and a conductive sheet, and the crimping reed is formed into a Ring-shaped, one end of the crimping reed is fixedly connected to the conductive sheet, and the other end surrounds and forms a crimping space between the conductive sheet. The elastic force of the crimping reed can drive it to be pressed against the conductive sheet. The wire space expands with the operating surface of wiring, and the wiring operating hole (302) faces the operating surface of the wire pressing reed.