Plug-in connection structure and electrical device

Abstract

The present application relates to a kind of plug-in connection structure and electrical equipment, which is used for the connection of first base and second base, comprising positioning connector, positioning matching piece and elastic locking mechanism, positioning connector is arranged in first base;Positioning matching piece is arranged in second base, and positioning matching piece and positioning connector are mutually matched to position first base and second base;Elastic locking mechanism is arranged between positioning connector and positioning matching piece and / or elastic locking structure is arranged between first base and second base, to lock and connect first base and second base after positioning connector and positioning matching piece mutually cooperate;It can be seen from this that by setting the above plug-in connection structure between first base and second base, the screwless connection between first base and second base can be realized, which is convenient to disassemble and assemble, and the disassembly and assembly efficiency is high, which helps to improve maintenance efficiency and reduce maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and in particular to a plug-and-play connection structure and electrical equipment. Background Technology

[0002] Manufacturing efficiency is one of the most important factors for enterprises in the industrial chain, while after-sales maintenance efficiency reflects the amount of after-sales maintenance costs. Currently, the base of most smart controllers for switches is fixed by a number of screws. As switches become smaller and smaller, the screws used are also becoming smaller and more customized due to structural size limitations. These smaller and customized screws are not only more expensive to manufacture, but also inconvenient to disassemble and assemble, which is not conducive to improving maintenance efficiency and reducing maintenance costs. Summary of the Invention

[0003] The first objective of this invention is to provide a plug-and-play connection structure to eliminate the need for screws in the connection of various components of electrical equipment, thereby facilitating disassembly and assembly, improving maintenance efficiency, and reducing maintenance costs.

[0004] A second objective of the present invention is to provide an electrical device adapted using the above-described plug-and-play connection structure.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A plug-in connection structure for connecting a first base and a second base, comprising:

[0007] A positioning connector is disposed on the first base;

[0008] A positioning fitting is disposed on the second base, and the positioning fitting cooperates with the positioning connector to position the first base and the second base.

[0009] An elastic locking mechanism is provided between the positioning connector and the positioning mating member and / or between the first base and the second base, so as to lock the first base and the second base together after the positioning connector and the positioning mating member cooperate with each other.

[0010] Optionally, it further includes an elastic preload device disposed between the first substrate and the second substrate, the elastic preload device being used to apply a preload force to the first substrate and the second substrate to cause them to tend to move away from each other.

[0011] Optionally, the elastic preload device includes:

[0012] A pre-tightening limiting member is disposed on the first base, and a limiting groove is formed between the pre-tightening limiting member and the first base;

[0013] A pre-tightening fitting is used to be inserted into the limiting groove. The pre-tightening fitting includes a base and a contact portion. The base is disposed on the second base, and the contact portion is disposed on the base by an elastic element.

[0014] The surfaces of the base and the contact portion that are opposite to each other are used to contact and engage with the two groove walls of the limiting groove under the action of the elastic member. One of the two opposite groove walls of the limiting groove is located in the first base, and the other of the two opposite groove walls of the limiting groove is located in the pre-tightening limiting member.

[0015] Optionally, the contact portion and the end of the base portion near the second substrate are rotatably connected.

[0016] Optionally, the positioning connector is a positioning pin, and the positioning mating part is provided with a positioning groove adapted to the positioning pin. The positioning pin and the positioning groove cooperate with each other to position the first substrate and the second substrate.

[0017] Optionally, the elastic locking mechanism includes an elastic latch and a locking member with a locking groove, wherein the elastic latch has a locking end adapted to the locking groove;

[0018] The elastic latch is disposed on one of the positioning connector and the positioning mating member, and the locking member is disposed on the other of the positioning connector and the positioning mating member. The locking end of the elastic latch engages with the locking groove to lock when the positioning connector and the positioning mating member are in place.

[0019] Optionally, the elastic latch is disposed on one of the positioning connector and the positioning mating member, and the locking end of the elastic latch is provided with a driving part, which is used to cooperate with the other of the positioning connector and the positioning mating member to drive the elastic latch to move to the unlocked position.

[0020] Optionally, the driving part is a spherical surface or a guide slope disposed at the locking end of the elastic latch.

[0021] Optionally, the resilient latch is provided with an operating part, which is operated by a person to move the resilient latch to the unlocked position.

[0022] Optionally, the operating part of the elastic latch is an operating lever located at the end of the elastic latch away from the driving part.

[0023] Optionally, the plug-and-play connection structure includes a plurality of positioning connectors and a plurality of positioning mating parts corresponding to each positioning connector, wherein at least two positioning connectors and the corresponding two positioning mating parts are disposed between different sides of the first base and the second base.

[0024] An electrical device includes a first base and a second base, wherein the first base and the second base are connected by a plug-in connection structure as described in any of the above.

[0025] Optionally, the electrical equipment is a circuit breaker, the first base is the base of the circuit breaker, and the second base is the controller base of the circuit breaker.

[0026] As can be seen from the above technical solutions, this invention discloses a plug-in connection structure for connecting a first base and a second base. The structure includes a positioning connector, a positioning mating member, and an elastic locking mechanism. The positioning connector is disposed on the first base; the positioning mating member is disposed on the second base, and the positioning mating member and the positioning connector cooperate to position the first base and the second base; the elastic locking mechanism is disposed between the positioning connector and the positioning mating member, and / or the elastic locking mechanism is disposed between the first base and the second base, to lock the first base and the second base together after the positioning connector and the positioning mating member cooperate. In application, the positioning connector on the first base is aligned with the corresponding positioning mating member on the second base, so that the first base... The first and second bases move closer together to allow the positioning connector and the positioning mating part to engage. During this process, the locking end of the elastic locking mechanism is squeezed by the mating surface between the first and second bases, overcoming the elastic force and moving to the unlocked position. When the positioning connector and the positioning mating part are engaged, the mating surface between the first and second bases no longer applies force to the locking end of the elastic locking mechanism. The locking end of the elastic locking mechanism resets under the elastic force and enters the locking position, locking the positioning connector and the positioning mating part together. Thus, by setting the above-mentioned plug-in connection structure between the first and second bases, a screwless connection between the first and second bases can be achieved, which is convenient for disassembly and assembly, and has high disassembly and assembly efficiency, which helps to improve maintenance efficiency and reduce maintenance costs.

[0027] The present invention also provides an electrical device employing the above-described plug-in connection structure. Since the first base and the second base of the electrical device are connected by the above-described plug-in connection structure, the electrical device has the same beneficial effects as the above-described plug-in connection structure, which will not be described in detail here. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the plug-and-play connection structure after connection, as provided in an embodiment of the present invention.

[0030] Figure 2 An exploded view of the plug-in connection structure provided in an embodiment of the present invention;

[0031] Figure 3 This is a partial structural diagram of the pre-tightening limiting member of the first substrate provided in an embodiment of the present invention;

[0032] Figure 4 This is a partial structural diagram of the pre-tightening fitting of the second substrate provided in an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the assembled structure of the elastic preload device provided in an embodiment of the present invention;

[0034] Figure 6 This is a partial structural diagram of the first substrate at the positioning connector provided in an embodiment of the present invention;

[0035] Figure 7 This is a partial structural diagram of the second substrate at the positioning and mating part provided in an embodiment of the present invention.

[0036] in:

[0037] 1 is the first base; 2 is the second base; 3 is the positioning pin; 4 is the positioning mating part; 401 is the positioning groove; 5 is the elastic latch; 501 is the elastic element; 502 is the driving part; 503 is the operating part; 6 is the elastic pre-tightening device; 601 is the pre-tightening limiting element; 602 is the pre-tightening mating part; 6021 is the base; 6022 is the contact part; 7 is the locking groove. Detailed Implementation

[0038] One of the core aspects of this invention is to provide a plug-in connection structure that enables the connection of various components of electrical equipment to be screwless, making it easy to disassemble and assemble, improving maintenance efficiency, and reducing maintenance costs.

[0039] Another core aspect of this invention is to provide an electrical device employing the aforementioned plug-and-play connection structure.

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the plug-and-play connection structure after connection according to an embodiment of the present invention. Figure 2 An exploded view of the plug-in connection structure provided in an embodiment of the present invention.

[0042] This invention discloses a plug-in connection structure for connecting a first substrate 1 and a second substrate 2. The plug-in connection structure includes a positioning connector, a positioning mating component 4, and an elastic locking mechanism.

[0043] The positioning connector is disposed on the first base 1; the positioning mating part 4 is disposed on the second base 2. The positioning mating part 4 and the positioning connector cooperate with each other to position the first base 1 and the second base 2. The positioning connector and the positioning mating part 4 can be engaged by a snap-fit ​​or by an insert fitting. That is, one of the positioning connector and the positioning mating part 4 is a protruding structure that protrudes from the mating surface of the first base 1 or the second base 2. This protruding structure can be fixedly set or rotatably set. The other of the positioning connector and the positioning mating part 4 is disposed on the first base 1 or the second base 2. The mating surface of the second base 2 has a clearance structure that is adapted to the protruding structure. If the protruding structure is fixed, the protruding structure and the clearance structure are inserted into each other. If the protruding structure is rotatable, it can pass through the hole or groove of the clearance structure when it rotates to the first position, and can mate with the edge of the hole or groove of the clearance structure when it rotates to the second position. An elastic locking mechanism is provided between the positioning connector and the positioning mating member 4 and / or the elastic locking structure is provided between the first base 1 and the second base 2, so as to lock the first base 1 and the second base 2 after the positioning connector and the positioning mating member 4 mate with each other.

[0044] As can be seen, compared with the prior art, the plug-in connection structure provided in this embodiment of the invention, when applied, aligns the positioning connector on the first base 1 with the corresponding positioning mating member 4 on the second base 2, so that the first base 1 and the second base 2 are brought close to each other so that the positioning connector and the positioning mating member 4 cooperate with each other. During this process, the locking end of the elastic locking mechanism is squeezed by the mating surface between the first base 1 and the second base 2 and moves to the unlocking position against the elastic force. When the positioning connector and the positioning mating member 4 are in place, the mating surface between the first base 1 and the second base 2 no longer applies force to the locking end of the elastic locking mechanism. The locking end of the elastic locking mechanism is reset to the locking position under the elastic force, locking the positioning connector and the positioning mating member 4. It can be seen that by setting the above-mentioned plug-in connection structure between the first base 1 and the second base 2, a screwless connection between the first base 1 and the second base 2 can be achieved, which is convenient for disassembly and assembly, and has high disassembly and assembly efficiency, which helps to improve maintenance efficiency and reduce maintenance costs.

[0045] It is understandable that the elastic locking mechanism between the aforementioned positioning connector and positioning mating part 4, as well as between the two, requires a certain amount of fit allowance to ensure smooth engagement. This may lead to relative displacement between the first base 1 and the second base 2, which are connected solely by the aforementioned structure. To avoid this, in this embodiment of the invention, the plug-in connection structure further includes an elastic pre-tightening device 6 disposed between the first base 1 and the second base 2. The elastic pre-tightening device 6 is in a state of stress deformation or compression after the first base 1 and the second base 2 are assembled, thereby securing the first base 1 and the second base 2. The pre-tightening force applied to the two bases 2 causes them to tend to move away from each other, which serves to tighten the first base 1 and the second base 2, thereby compensating for the relative displacement between the first base 1 and the second base 2 caused by the aforementioned fitting allowance. This makes the mating surfaces of the first base 1 and the second base 2 more tightly contacted, preventing the first base 1 and the second base 2 from shaking relative to each other. Thus, after the first base 1 and the second base 2 are connected, the elastic pre-tightening device 6 can provide pre-tightening force to make the mating surfaces of the mating parts or elastic locking structures between the positioning connector and the positioning mating part 4 fit together to avoid displacement.

[0046] Specifically, such as Figures 3 to 5As shown, in a specific embodiment of the present invention, the above-mentioned elastic pre-tightening device 6 includes a pre-tightening limiting member 601 and a pre-tightening mating member 602. The pre-tightening limiting member 601 is disposed on the first base 1, and a limiting groove is formed between the pre-tightening limiting member 601 and the first base 1. The pre-tightening mating member 602 is inserted into the limiting groove. The pre-tightening mating member 602 includes a base 6021 and a contact portion 6022. The base 6021 is disposed on the second base 2, and the contact portion 6022 is disposed on the base 6021 by an elastic member. The surfaces of the base 6021 and the contact portion 6022 that are opposite to each other are used to separate under the action of the elastic member. The two walls of the limiting groove are not in contact with each other. One of the two opposite walls of the limiting groove is located in the first base 1, and the other is located in the pre-tightening limiting member 601. When the pre-tightening limiting member 601 is engaged with the pre-tightening fitting member 602, the elastic member is first compressed, so that the base 6021 and the contact part 6022 come close to each other to facilitate insertion into the limiting groove. After the base 6021 and the contact part 6022 are inserted into the limiting groove, they are in close contact with the two opposite walls of the limiting groove under the action of the elastic member, thereby applying a pre-tightening force to the first base 1 and the second base 2.

[0047] Furthermore, such as Figure 4 As shown, the contact portion 6022 and the base portion 6021 are rotatably connected at one end near the second base 2, which makes the relative movement of the contact portion 6022 and the base portion 6021 more controllable.

[0048] like Figure 6 and Figure 7 As shown, in a specific embodiment of the present invention, the positioning connector is a positioning pin 3. The positioning pin 3 is integrally formed with the first base 1 or detachably disposed on the first base 1. In this case, the first base 1 is provided with a threaded hole, and one end of the positioning pin 3 is provided with a screw adapted to the threaded hole. The positioning pin 3 is fixed to the first base 1 by the screw engaging with the threaded hole. The positioning mating part 4 is provided with a positioning groove 401 adapted to the positioning pin 3. The positioning groove 401 can be, for example, Figure 7 The through groove shown can be circumferentially closed and open at both ends, or it can be a blind groove that is circumferentially closed and open at only one end. Of course, it can also be a groove that is not circumferentially closed. There is no limitation here. The positioning pin 3 and the positioning groove 401 cooperate with each other to position the first base 1 and the second base 2.

[0049] In one embodiment of the present invention, the above-mentioned elastic locking mechanism includes an elastic latch 5 and a locking member having a locking groove 7. The elastic latch 5 has a locking end adapted to the locking groove 7. The elastic latch 5 is disposed on one of the positioning connector and the positioning mating member 4, and the locking member is disposed on the other of the positioning connector and the positioning mating member 4. The locking end of the elastic latch 5 engages with the locking groove 7 to lock when the positioning connector and the positioning mating member 4 are in place.

[0050] like Figure 6 As shown, the locking groove 7 is provided on the positioning pin 3. Therefore, the positioning pin 3 serves as the locking element of the elastic locking structure. The elastic latch 5 is provided on the positioning mating part 4 or the second base 2. Of course, it can also be the other way around, with the elastic latch 5 provided on the positioning pin 3 and the locking groove 7 provided on the positioning mating part 4 or the second base 2.

[0051] like Figure 7 As shown, the elastic latch 5 adopts a spring pin structure. The spring pin moves linearly along its own axis under the action of the elastic element 501. Of course, other ways of movement can also be used. For example, one end of the elastic latch 5 is hinged to either the positioning connector or the positioning mating element 4. In this way, the elastic latch 5 will adopt a swinging mode. The elasticity of the above-mentioned elastic latch 5 depends on the elastic element 501. In other embodiments, the elastic force can also be generated by the elastic deformation of the latch itself, such as an elastic barb structure.

[0052] To further optimize the above technical solution, the elastic latch 5 is disposed on one of the positioning connector and the positioning mating member 4. The locking end of the elastic latch 5 is provided with a driving part 502. The driving part 502 is used to cooperate with the other of the positioning connector and the positioning mating member 4 to drive the elastic latch 5 to move to the unlocking position, thereby avoiding the elastic latch 5 from interfering with the cooperation of the positioning connector and the positioning mating member 4.

[0053] Furthermore, the drive unit 502 is a spherical surface or a guide slope provided at the locking end of the elastic latch 5.

[0054] When disassembling the first base 1 and the second base 2, it is necessary to first release the lock of the elastic locking mechanism. To facilitate operation, an operating part 503 can be provided on the above-mentioned elastic latch 5. The operating part 503 is used to be operated by a person to move the elastic latch 5 to the unlocked position.

[0055] Specifically, such as Figure 7 As shown, the operating part 503 of the elastic latch 5 is an operating rod located at the end of the elastic latch 5 away from the driving part 502. When unlocking, the operator can pull the operating rod to make the locking end of the elastic latch 5 exit the locking groove 7.

[0056] To further optimize the above technical solution, in this embodiment of the invention, the plug-and-play connection structure includes multiple positioning connectors and multiple positioning mating parts 4 corresponding to each positioning connector. At least two positioning connectors and two corresponding positioning mating parts 4 are disposed between different sides of the first base 1 and the second base 2 to position the first base 1 and the second base 2 from different directions.

[0057] This invention also provides an electrical device, which includes a first base 1 and a second base 2, wherein the first base 1 and the second base 2 are connected by a plug-in connection structure as described in the above embodiments. Since the electrical device adopts the plug-in connection structure in the above embodiments, the technical effect of the electrical device can be referred to the above embodiments.

[0058] Specifically, in one embodiment, the electrical equipment is a circuit breaker, the first base 1 is the base of the circuit breaker, and the second base 2 is the controller base of the circuit breaker.

[0059] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0060] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not 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 plug-in connection structure for connecting a first substrate and a second substrate, characterized in that, include: A positioning connector is disposed on the first base; A positioning fitting is disposed on the second base, and the positioning fitting cooperates with the positioning connector to position the first base and the second base. An elastic locking mechanism is provided between the positioning connector and the positioning mating member and / or between the first base and the second base, so as to lock the first base and the second base together after the positioning connector and the positioning mating member cooperate with each other; The elastic locking mechanism includes an elastic latch and a locking member with a locking groove, wherein the elastic latch has a locking end that is adapted to the locking groove; The elastic latch is disposed on one of the positioning connector and the positioning mating member, and the locking member is disposed on the other of the positioning connector and the positioning mating member. The locking end of the elastic latch engages with the locking groove to lock when the positioning connector and the positioning mating member are in place.

2. The plug-and-play connection structure according to claim 1, characterized in that, It also includes an elastic preload device disposed between the first substrate and the second substrate, the elastic preload device being used to apply a preload force to the first substrate and the second substrate to cause them to tend to move away from each other.

3. The plug-and-play connection structure according to claim 2, characterized in that, The elastic preload device includes: A pre-tightening limiting member is disposed on the first base, and a limiting groove is formed between the pre-tightening limiting member and the first base; A pre-tightening fitting is used to be inserted into the limiting groove. The pre-tightening fitting includes a base and a contact portion. The base is disposed on the second base, and the contact portion is disposed on the base by an elastic element. The surfaces of the base and the contact portion that are opposite to each other are used to contact and engage with the two groove walls of the limiting groove under the action of the elastic member. One of the two opposite groove walls of the limiting groove is located in the first base, and the other of the two opposite groove walls of the limiting groove is located in the pre-tightening limiting member.

4. The plug-and-play connection structure according to claim 3, characterized in that, The contact portion and the end of the base portion near the second substrate are rotatably connected.

5. The plug-and-play connection structure according to any one of claims 1-4, characterized in that, The positioning connector is a positioning pin, and the positioning mating part is provided with a positioning groove that is adapted to the positioning pin. The positioning pin and the positioning groove cooperate with each other to position the first base and the second base.

6. The plug-and-play connection structure according to claim 1, characterized in that, The elastic latch is disposed on one of the positioning connector and the positioning mating member. The locking end of the elastic latch is provided with a driving part, which is used to cooperate with the other of the positioning connector and the positioning mating member to drive the elastic latch to move to the unlocking position.

7. The plug-and-play connection structure according to claim 6, characterized in that, The driving part is a spherical surface or a guide slope disposed at the locking end of the elastic latch.

8. The plug-and-play connection structure according to claim 6, characterized in that, The elastic latch is provided with an operating part, which is operated by a person to move the elastic latch to the unlocked position.

9. The plug-and-play connection structure according to claim 8, characterized in that, The operating part of the elastic latch is an operating lever located at the end of the elastic latch away from the driving part.

10. The plug-in connection structure according to any one of claims 1-4 and 6-9, characterized in that, The plug-and-play connection structure includes a plurality of positioning connectors and a plurality of positioning mating parts corresponding to each positioning connector, wherein at least two positioning connectors and the corresponding two positioning mating parts are disposed between different sides of the first base and the second base.

11. An electrical device, comprising a first base and a second base, characterized in that, The first substrate and the second substrate are connected by a plug-and-play connection structure as described in any one of claims 1-10.

12. The electrical equipment according to claim 11, characterized in that, The electrical equipment is a circuit breaker, the first base is the base of the circuit breaker, and the second base is the controller base of the circuit breaker.

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