Mounting structure of a direct current contactor

Abstract

The utility model discloses a mounting structure of direct current contactor, including the casing, the casing end cap is equipped with two contact point spare composition outside contact head at interval, and contact point spare is provided with internal thread, one of contact point spare is equipped with stud, and the copper bush is sleeved on the stud, and the external copper row is sleeved on the stud, and copper row no.

Description

Technical Field

[0001] This utility model relates to the field of DC contactor technology, and in particular to an installation structure for a DC contactor. Background Technology

[0002] A contactor is a widely used switching electrical device. The contactor housing has two contacts, positive and negative, which are typically mounted and fixed to external copper busbars to form a circuit connection.

[0003] In the prior art, one type of DC contactor has an internally threaded contact structure on the end face of the housing; when the height of the copper busbars connecting the user end and the two contacts is inconsistent, it is impossible to install the two contacts of the DC contactor with the corresponding copper busbars. Utility Model Content

[0004] To address the aforementioned issues, this application provides a reasonably structured mounting structure for a DC contactor, enabling installation and connection with copper busbars one and two located at different plane heights. The structure is simple, easy to operate, reliable in installation, practical, and highly flexible in actual use.

[0005] The technical solution adopted in this utility model is as follows: An installation structure for a DC contactor includes a housing. Two contact elements are spaced apart on the end cap of the housing to form an external contact head. The contact elements are provided with internal threads. One of the contact elements is threaded with a stud, and a copper sleeve is fitted on the stud. An external copper busbar is fitted onto the stud and is locked and pressed against the outer end of the copper sleeve by a fastening component. The inner end of the copper sleeve is pressed against the corresponding contact element. The structure also includes a second copper busbar fitted onto the other contact element. There is a gap between the planes on which the first and second copper busbars are located.

[0006] As a further improvement to the above technical solution: The stud extends axially from the copper sleeve, and a copper busbar is fitted onto the stud located above the copper sleeve. The fastening assembly locks the copper busbar onto the stud, causing it to adhere tightly to the copper sleeve to form a fixed installation.

[0007] The fastening assembly includes a nut, which is screwed onto a stud to press the copper busbar and copper sleeve toward the contact element.

[0008] The fastening assembly also includes a flat washer and an elastic washer sequentially fitted onto the stud, with a nut screwed onto the stud above the elastic washer, and the flat washer located between the elastic washer and the copper busbar.

[0009] The stud has a fully external thread structure, with the bottom end of the stud screwed to the contact element and the upper part of the stud screwed to the fastening assembly.

[0010] The inner diameter of the copper sleeve is larger than the outer diameter of the stud, and the copper sleeve is movably fitted onto the stud.

[0011] The two contact components are respectively fitted with copper busbar one and copper busbar two via corresponding studs and copper sleeves, or the copper busbar two is directly fitted to the corresponding contact component via a locking component.

[0012] The locking assembly includes a bolt that passes through a copper busbar and is threaded onto the contact element.

[0013] The locking assembly also includes a flat washer and an elastic washer arranged in sequence. The bolt passes through the elastic washer, the flat washer, and the copper busbar in sequence before being locked to the contact element.

[0014] The end cap located between the two external contact heads extends outward to form a baffle.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This utility model realizes the installation of the two external contact heads of the DC contactor with external copper busbar one and copper busbar two respectively, and can be used with the structure of studs combined with copper sleeves to realize the installation and connection with copper busbar one and copper busbar two located at different plane heights. The structure is simple, easy to operate, reliable to install, practical, and highly flexible in actual use. This utility model also has the following advantages: In practical use, copper sleeves of different axial lengths can be matched to accommodate the installation of copper busbars one and two with different height differences, effectively ensuring installation reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the connection between the DC contactor of this utility model and the external copper busbar.

[0017] Figure 2 for Figure 1 Exploded view of the connecting structure.

[0018] The components are: 1. Housing; 2. Contact components; 3. Copper sleeve; 4. Stud; 5. Flat washer; 6. Elastic washer; 7. Nut; 8. Bolt; 11. Baffle; 10. Copper busbar one; 20. Copper busbar two. Detailed Implementation

[0019] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0020] like Figure 1 and Figure 2As shown, the mounting structure of a DC contactor in this embodiment includes a housing 1. Two contact elements 2 are spaced apart on the end cap of the housing 1 to form an external contact head. The contact elements 2 are provided with internal threads. A stud 4 is threaded onto one of the contact elements 2. A copper sleeve 3 is fitted onto the stud 4. An external copper busbar 10 is fitted onto the stud 4. The copper busbar 10 is locked and pressed against the outer end of the copper sleeve 3 by a fastening component. The inner end of the copper sleeve 3 is pressed against the corresponding contact element 2. It also includes a copper busbar 20 fitted onto the other contact element 2. There is a gap between the planes where the copper busbar 10 and the copper busbar 20 are located.

[0021] This embodiment enables the installation of the two external contacts of the DC contactor with the external copper busbar 10 and copper busbar 20 respectively, and can be used through the structure of stud 4 combined with copper sleeve 3 to achieve installation connection with copper busbar 10 and copper busbar 20 located at different plane heights.

[0022] In practical use, copper sleeves 3 with different axial lengths can be matched to adapt to the installation of copper busbar 10 and copper busbar 20 with different height differences, effectively ensuring installation reliability.

[0023] The stud 4 extends axially from the copper sleeve 3. The copper busbar 10 is fitted onto the stud 4 above the copper sleeve 3. The fastening assembly is used to lock the copper busbar 10 onto the stud 4, causing the copper busbar 10 to be tightly attached to the copper sleeve 3 to form a fixed installation. Thus, the connection between the copper busbar 10 and the corresponding external contact head is achieved through the stud 4 and the copper sleeve 3.

[0024] The fastening assembly includes a nut 7, which is screwed onto the stud 4 to press the copper busbar 10 and copper sleeve 3 toward the contact element 2, making operation convenient.

[0025] In this embodiment, the use of nut 7 and stud 4 facilitates assembly operations and adjustment of tightening and loosening.

[0026] The fastening assembly also includes a flat washer 5 and an elastic washer 6 sequentially fitted onto the stud 4, and a nut 7 screwed onto the stud 4 above the elastic washer 6. The flat washer 5 is located between the elastic washer 6 and the copper busbar 10.

[0027] In this embodiment, by setting the flat washer 5 and the elastic washer 6 between the nut 7 and the copper busbar 10, the clamping force applied to the copper busbar 10 toward the copper sleeve 3 by the threaded locking of the nut 7 relative to the stud 4 is stable, evenly distributed and reliable, effectively ensuring a stable electrical connection between the copper busbar 10 and the contact.

[0028] In actual operation, the copper bushing 10 and the contact can be electrically connected by the copper sleeve 3, and the stud 4 can be used only as a structural connection; of course, the stud 4 can be made of metal depending on the actual situation.

[0029] The stud 4 has a fully external thread structure. The bottom end of the stud 4 is screwed to the contact element 2, and the upper part of the stud 4 is screwed to the fastening assembly, which facilitates actual assembly and use.

[0030] Of course, in practice, the stud 4 can also be selected with a threaded structure at only both ends, which can match and meet the needs of the copper sleeve 3.

[0031] The inner diameter of the copper sleeve 3 is larger than the outer diameter of the stud 4. The copper sleeve 3 is movably fitted onto the stud 4, which facilitates the quick and accurate installation of the copper sleeve 3 onto the stud 4.

[0032] In one embodiment, the two contact elements 2 are respectively fitted with copper busbar 10 and copper busbar 20 by corresponding studs 4 and copper sleeves 3 and fastening components, so as to match the structure of the external copper busbar and the contactor housing 1 itself, which is especially suitable for the installation of copper busbars of different heights.

[0033] In another embodiment, copper busbar 10 is connected to one of the contact pieces 2 via studs 4 and copper sleeves 3 fastening components, and copper busbar 20 is directly fitted to another corresponding contact piece 2 via locking components, so that the axial length of the copper sleeves 3 matches the different heights of copper busbar 10 and copper busbar 20.

[0034] The locking assembly includes a bolt 8, which passes through the copper busbar 20 and is threaded onto the contact element 2, enabling the copper busbar 20 to be quickly and reliably installed and connected at the contact element 2.

[0035] The locking assembly also includes a flat washer 5 and an elastic washer 6 arranged in sequence. The bolt 8 passes through the elastic washer 6, the flat washer 5, and the copper busbar 20 in sequence and is then locked to the contact element 2.

[0036] Similarly, in this embodiment, by setting the flat washer 5 and the elastic washer 6 between the bolt 8 and the copper busbar 20, the clamping force applied to the copper busbar 20 towards the contact 2 via the threaded locking of the bolt 8 towards the contact 2 is stable, evenly distributed and reliable, effectively ensuring a stable electrical connection between the copper busbar 20 and the contact.

[0037] The end cap located between the two outer contact heads extends outward to form a baffle 11, which constitutes a separation between the two contact elements 2.

[0038] In the prior art, the two external copper busbars connected to the contact element 2 are usually separated by the setting of the baffle 11; in this embodiment, the installation of the two external copper busbars at different heights can be achieved by the cooperation of the stud 4 and the copper sleeve 3, and the height difference also increases the distance between the two copper busbars.

[0039] This utility model achieves the installation and connection of DC contactor contacts with copper busbar 10 and copper busbar 20 located at different plane heights through the use of stud 4 combined with copper sleeve 3. The structure is simple, easy to operate, reliable to install, practical, and highly flexible in actual use.

[0040] 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.

[0041] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A mounting structure for a DC contactor, comprising a housing (1), characterized in that: The end cap of the housing (1) is equipped with two contact elements (2) at intervals to form an external contact head. The contact elements (2) are provided with internal threads. One of the contact elements (2) is threaded with a stud (4). A copper sleeve (3) is fitted on the stud (4). An external copper busbar (10) is fitted on the stud (4). The copper busbar (10) is locked and pressed against the outer end of the copper sleeve (3) by a fastening component. The inner end of the copper sleeve (3) is pressed against the corresponding contact element (2). It also includes a copper busbar (20) fitted on the other contact element (2). There is a gap between the planes where the copper busbar (10) and the copper busbar (20) are located.

2. The mounting structure of a DC contactor as described in claim 1, characterized in that: The stud (4) extends axially from the copper sleeve (3), and the copper busbar (10) is fitted onto the stud (4) above the copper sleeve (3). The fastening assembly is used to lock the stud (4) so ​​that the copper busbar (10) is pressed against the copper sleeve (3) to form a fixed installation.

3. The mounting structure of a DC contactor as described in claim 1 or 2, characterized in that: The fastening assembly includes a nut (7), which is screwed onto a stud (4) to press the copper busbar (10) and copper sleeve (3) toward the contact element (2).

4. The mounting structure of a DC contactor as described in claim 3, characterized in that: The fastening assembly also includes a flat washer (5) and an elastic washer (6) sequentially fitted onto the stud (4), and a nut (7) screwed onto the stud (4) above the elastic washer (6). The flat washer (5) is located between the elastic washer (6) and the copper busbar (10).

5. The mounting structure of a DC contactor as described in claim 1, characterized in that: The stud (4) has a fully external thread structure. The bottom end of the stud (4) is screwed to the contact element (2), and the upper part of the stud (4) is screwed to the fastening assembly.

6. The mounting structure of a DC contactor as described in claim 1, characterized in that: The inner diameter of the copper sleeve (3) is larger than the outer diameter of the stud (4), and the copper sleeve (3) is movably fitted onto the stud (4).

7. The mounting structure of a DC contactor as described in claim 1, characterized in that: Two contact elements (2) are respectively fitted with copper busbar one (10) and copper busbar two (20) by corresponding studs (4) and copper sleeves (3) and fastening components, or the copper busbar two (20) is directly fitted to the corresponding contact element (2) by locking components.

8. The mounting structure of a DC contactor as described in claim 1, characterized in that: The locking assembly includes a bolt (8), which passes through a copper busbar (20) and is threaded onto a contact element (2).

9. The mounting structure of a DC contactor as described in claim 8, characterized in that: The locking assembly also includes a flat washer (5) and an elastic washer (6) arranged in sequence. The bolt (8) passes through the elastic washer (6), the flat washer (5), and the copper busbar (20) in sequence and is then locked to the contact element (2).

10. The mounting structure of a DC contactor as described in claim 1, characterized in that: The end cap located between the two outer contact heads extends outward to form a baffle (11).

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