Direct-current contactor shell and direct-current contactor

Abstract

The utility model relates to the technical field of low-voltage switches, and particularly discloses a direct-current contactor shell and a direct-current contactor, the direct-current contactor shell comprises a protective shell body, the protective shell body is provided with a mounting cavity capable of accommodating a moving contact system, and a first indicating piece and a second indicating piece are fixed on the moving contact system. The first indicating member and the second indicating member are arranged along the motion path of the moving contact system. The side wall of the protective shell body is provided with a visible window located on the motion path; when the moving contact system is switched off, the first indicating piece is driven to correspond to the visible window, or when the moving contact system is switched on, the second indicating piece is driven to correspond to the visible window. According to the invention, the opening and closing states of the moving contact system and the binding post system can be directly observed, which is convenient for workers to disassemble, assemble and maintain.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage switches, and in particular to a DC contactor housing and a DC contactor. Background Art

[0002] With the rapid development of DC systems, DC contactors are used in more and more DC systems. The existing DC contactors on the market are prone to welding, adhesion and other phenomena. Since the existing DC contactors cannot directly observe the opening and closing status of the moving contact system and the terminal system, the maintenance personnel cannot directly and quickly obtain the current status of the product during maintenance, which causes inconvenience to the maintenance personnel's work and is not conducive to the rapid maintenance of the DC contactor. Utility Model Content

[0003] The purpose of the present application is to provide a DC contactor housing and a DC contactor, which can directly observe the opening and closing states of the moving contact system and the terminal system, making it convenient for staff to perform disassembly, assembly and maintenance.

[0004] The embodiment of the present application is implemented as follows:

[0005] In the first aspect, an embodiment of the present application provides a DC contactor housing, comprising a protective shell body, the protective shell body having an installation chamber that can accommodate a moving contact system, a first indicator member and a second indicator member being fixed to the moving contact system, and the first indicator member and the second indicator member being arranged along a movement path of the moving contact system; a side wall of the protective shell body is provided with a visual window located on the movement path; the opening of the moving contact system drives the first indicator member to correspond to the visual window, or the closing of the moving contact system drives the second indicator member to correspond to the visual window.

[0006] As an optional implementation, a mounting platform is provided on a side of the moving contact system close to the visible window; the plane where the mounting platform is located is parallel to the visible window; and the first indicator and the second indicator are arranged side by side on the mounting platform.

[0007] As an optional embodiment, the first indicator member and the second indicator member are both sheet members attached to the mounting platform; the plane area of ​​the sheet member is greater than or equal to the area of ​​the visible window; the first indicator member or the second indicator member can cover the visible window when it is flush with the visible window.

[0008] As an optional implementation, the first indicator member and the second indicator member are fixed to the mounting platform via a clamping structure; or, the first indicator member and the second indicator member are fixed to the mounting platform via an adhesive connection layer.

[0009] As an optional implementation, a switch-off mark is provided on a surface of one side of the first indicator member close to the visible window; and a switch-on mark is provided on a surface of one side of the second indicator member close to the visible window.

[0010] As an optional implementation, the protective shell body includes a first shell and a second shell; the first shell and the second shell are connected via a shell clamping structure.

[0011] As an optional embodiment, the visible window is arranged on the first shell, and an isolation protection cover is arranged in the first shell; the moving contact system is installed in the chamber of the isolation protection cover; the insulating isolation protection cover is made of transparent insulating material and is used to isolate the arc on the moving contact system.

[0012] As an optional implementation, the opening of the isolation protection cover is covered with a yoke plate; the yoke plate is sealed and connected to the opening of the isolation protection cover via a connecting piece.

[0013] As an optional embodiment, the shell snap-fitting structure includes a plurality of snap-fitting protrusions spaced apart on the circumferential side wall of the first shell and a plurality of snap-fitting grooves spaced apart on the second shell; the plurality of snap-fitting protrusions are snap-fitted with the plurality of snap-fitting grooves in a one-to-one corresponding manner.

[0014] In the second aspect, an embodiment of the present application also provides a DC contactor, comprising the above-mentioned DC contactor housing, drive system, moving contact system and terminal assembly; the drive system and the moving contact system are both arranged in the DC contactor housing; the terminal is inserted into the DC contactor housing, and the drive system drives the moving contact system to move linearly, and opens or closes the circuit with the terminal.

[0015] The beneficial effects of the embodiments of the present application include:

[0016] The embodiment of the present application provides a DC contactor housing, including a protective shell body, the protective shell body has an installation chamber that can accommodate a moving contact system, a first indicator and a second indicator are fixed on the moving contact system, and the first indicator and the second indicator of the embodiment of the present application are arranged along the moving contact system's movement path; the side wall of the protective shell body is provided with a visual window located on the movement path; in the embodiment of the present application, the opening of the moving contact system drives the first indicator to be flush with the visual window, so as to realize the intuitive visualization of the opening state, and the closing of the moving contact system drives the second indicator to be flush with the visual window, so as to realize the intuitive visualization of the closing state. Therefore, during maintenance, the staff can directly and quickly obtain the current status of the product, which makes it easy for the maintenance staff to operate and is conducive to the rapid maintenance of the DC contactor.

[0017] The embodiment of the present application also provides a DC contactor, including the above-mentioned DC contactor housing, drive system, moving contact system and terminal assembly; the drive system and the moving contact system are both arranged in the DC contactor housing; the terminal is inserted into the DC contactor housing, and the drive system drives the moving contact system to move linearly, and opens or closes with the terminal. The drive system of the embodiment of the present application can drive the moving contact system to move in a linear direction, so that the moving contact system and the terminal assembly can be closed or opened. The embodiment of the present application sets a visual window on the linear motion path of the moving contact system, so that the first indicator and the second indicator can be aligned with the visual window respectively to indicate the opening and closing status. Therefore, the embodiment of the present application can directly observe the opening and closing status of the moving contact system and the terminal system, which is convenient for the staff to disassemble and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is one of the structural schematic diagrams of the DC contactor housing of the embodiment of the present application;

[0020] Figure 2 This is the second structural schematic diagram of the DC contactor housing of the embodiment of the present application;

[0021] Figure 3 This is the third structural schematic diagram of the DC contactor housing of the embodiment of the present application;

[0022] Figure 4 This is the fourth structural schematic diagram of the DC contactor housing according to the embodiment of the present application.

[0023] Icons: 100-protective shell body; 101-installation chamber; 102-moving contact system; 103-first indicator; 104-second indicator; 105-visible window; 106-installation platform; 107-first shell; 108-second shell; 109-shell clamping structure; 110-isolation protection cover; 111-yoke plate; 112-terminal assembly. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0026] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0027] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] With the rapid development of DC systems, DC contactors are used in more and more DC systems. At present, existing DC contactors on the market are prone to welding, adhesion and other phenomena. Since the existing DC contactors cannot directly observe the opening and closing states of the moving contact system 102 and the terminal system, maintenance personnel cannot directly and quickly obtain the current state of the product during maintenance, which causes inconvenience to the maintenance personnel and is not conducive to the rapid maintenance of the DC contactor.

[0029] In order to solve the above technical problems, the embodiments of the present application provide a DC contactor housing and a DC contactor.

[0030] Reference Figure 1 , Figure 2 as well as Figure 3As shown, an embodiment of the present application provides a DC contactor housing, including a protective shell body 100, the protective shell body 100 has an installation chamber 101 that can accommodate a moving contact system 102, and a first indicator 103 and a second indicator 104 are fixed to the moving contact system 102, and the first indicator 103 and the second indicator 104 are arranged along the movement path of the moving contact system 102; a side wall of the protective shell body 100 is provided with a visible window 105 located on the movement path; when the moving contact system 102 is opened, the first indicator 103 corresponds to the visible window 105, or, when the moving contact system 102 is closed, the second indicator 104 corresponds to the visible window 105.

[0031] It should be noted that the DC contactor housing provided in the embodiment of the present application is an insulating housing, wherein the specific shape of the protective housing body 100 can be selected by those skilled in the art according to needs.

[0032] The moving contact system 102 can reciprocate in a straight line direction in the installation chamber 101. When the moving contact system 102 approaches the terminal assembly 112 in a straight line until the two are in contact, the circuit breaker is closed. In this state, the second indicator 104 on the moving contact system 102 is flush with the visual window 105, that is, the second indicator 104 can be seen through the visual window 105. When the moving contact system 102 moves away from the terminal assembly 112 in a straight line until the two are separated, the circuit breaker is opened. In this state, the first indicator 103 on the moving contact system 102 is flush with the visual window 105, that is, the first indicator 103 can be seen through the visual window 105.

[0033] It should be noted that the shape and size of the first indicator 103 and the second indicator 104 of the embodiment of the present application can be set by those skilled in the art as needed, so that the first indicator 103 and the second indicator 104 can be visually seen through the visual window 105. When the DC contactor using the embodiment of the present application has a fault such as welding or adhesion, the staff can obtain the current status of the product directly and quickly from the outside of the protective shell body 100 through the visual window 105 without disassembling the protective shell body 100, which is conducive to the rapid maintenance of the DC contactor.

[0034] The embodiment of the present application provides a DC contactor housing, including a protective shell body 100, the protective shell body 100 has an installation chamber 101 that can accommodate a moving contact system 102, and a first indicator 103 and a second indicator 104 are fixed on the moving contact system 102. The first indicator 103 and the second indicator 104 of the embodiment of the present application are arranged along the movement path of the moving contact system 102; the side wall of the protective shell body 100 is provided with a visual window 105 located on the movement path; in the embodiment of the present application, the opening of the moving contact system 102 drives the first indicator 103 to be flush with the visual window 105, so as to realize the intuitive visualization of the opening state, and the closing of the moving contact system 102 drives the second indicator 104 to be flush with the visual window 105, so as to realize the intuitive visualization of the closing state. Therefore, during maintenance, the staff can directly and quickly obtain the current status of the product, which makes it easy for the maintenance staff to operate and is conducive to the rapid maintenance of the DC contactor.

[0035] Reference Figure 2 As shown, as an optional embodiment, a mounting platform 106 is provided on one side of the moving contact system 102 close to the viewing window 105 ; the plane where the mounting platform 106 is located is parallel to the viewing window 105 ; the first indicator 103 and the second indicator 104 are arranged side by side on the mounting platform 106 .

[0036] Furthermore, in the embodiment of the present application, a mounting platform 106 is provided on one side of the moving contact system 102 close to the visual window 105, and the plane where the mounting platform 106 is located is parallel to the plane where the visual window 105 is located. Through the above arrangement, the first indicator 103 and the second indicator 104 can be arranged parallel to the visual window 105, so that the larger first indicator 103 and the second indicator 104 can be seen from the visual window 105, and it is convenient for the staff to obtain the status information of the contactor.

[0037] Reference Figure 2 As shown, exemplarily, the first indicator member 103 and the second indicator member 104 are both sheet members attached to the mounting platform 106; the plane area of ​​the sheet member is greater than or equal to the area of ​​the visible window 105; the first indicator member 103 or the second indicator member 104 can cover the visible window 105 when it is flush with the visible window 105.

[0038] Exemplarily, the first indicator 103 and the second indicator 104 are both rectangular pieces. On the plane of the visible window 105, the rectangular piece and the visible window 105 can overlap and correspond, that is, the orthographic projection area of ​​the rectangular piece on the plane where the visible window 105 is located is consistent with the size of the visible window 105, and the visible window 105 is also a rectangular window, and the length and width of the two rectangles are consistent.

[0039] It should be noted that the first indicator 103 and the second indicator 104 may be spaced apart from the plane where the visible window 105 is located.

[0040] As an optional implementation, the first indicator member 103 and the second indicator member 104 are fixed on the mounting platform 106 via a snap-fit ​​structure; or, the first indicator member 103 and the second indicator member 104 are fixed on the mounting platform 106 via an adhesive connection layer.

[0041] Furthermore, the embodiment of the present application discloses a clamping structure for fixing the first indicator 103 and the second indicator 104, or an adhesive connection layer for fixing the mounting platform 106. The clamping structure and the adhesive connection layer can be configured as required by those skilled in the art, and are not specifically limited herein.

[0042] As an optional implementation, a switch-off mark is provided on a surface of one side of the first indicator 103 close to the visual window 105 ; a switch-on mark is provided on a surface of one side of the second indicator 104 close to the visual window 105 .

[0043] It should be noted that the opening mark and closing mark in the embodiment of the present application can be color marks or graphic shape marks.

[0044] For example, the first indicator 103 is green, and the second indicator 104 is red, and the closing state is distinguished by different colors. Alternatively, the opening and closing states can be distinguished directly by using text marks on the first indicator 103.

[0045] Reference Figure 3 and Figure 4 As shown, as an optional implementation, the protective shell body 100 includes a first shell 107 and a second shell 108 ; the first shell 107 and the second shell 108 are connected via a shell clamping structure 109 .

[0046] Exemplarily, the shell snap-fit ​​structure 109 includes a plurality of snap-fit ​​protrusions spaced apart on the circumferential side wall of the first shell 107 and a plurality of snap-fit ​​grooves spaced apart on the second shell 108 ; the plurality of snap-fit ​​protrusions snap-fit ​​with the plurality of snap-fit ​​grooves in a one-to-one corresponding manner.

[0047] It should be noted that the protective shell body 100 of the embodiment of the present application includes a first shell 107 and a second shell 108 connected by a snap-fit ​​structure. The structural shapes of the first shell 107 and the second shell 108 can be set by those skilled in the art as needed.

[0048] It should be noted that the protective shell body 100 may also be a whole, or may be composed of more parts that are snap-fitted and assembled.

[0049] Reference Figure 4As shown, as an optional embodiment, a visible window 105 is provided on the first shell 107, and an isolation protection cover 110 is provided in the first shell 107; the moving contact system 102 is installed in the chamber of the isolation protection cover 110; the insulating isolation protection cover 110 is made of transparent insulating material and is used to isolate the arc on the moving contact system 102.

[0050] Reference Figure 3 and Figure 4 As shown, in the embodiment of the present application, the visible window 105 is set on the first shell 107. By setting an isolation protection cover 110 shell between the moving contact system 102 and the first shell 107, the arc generated by the opening and closing of the moving contact system 102 and the terminal assembly 112 can be effectively prevented from passing through the visible window 105, thereby achieving arc isolation and effectively improving the safety of the visible window 105 of the DC contactor.

[0051] It should be noted that the isolation protection cover 110 is made of a transparent insulating material, such as glass.

[0052] Reference Figure 2 As shown, further, the opening of the isolation protection cover 110 is covered with a yoke plate 111, and the yoke plate 111 is sealed and connected to the opening of the isolation protection cover 110 through a connector. For example, the isolation protection cover 110 made of glass is welded to the yoke plate 111 through Kovar alloy.

[0053] In the embodiment of the present application, the yoke plate 111 is installed on the isolation protection cover 110 to achieve sealing of the chamber of the isolation protection cover 110 .

[0054] Reference Figure 3 and Figure 4 As shown, an embodiment of the present application also provides a DC contactor, including the above-mentioned DC contactor housing, drive system, moving contact system 102 and terminal assembly 112; the drive system and the moving contact system 102 are both arranged in the DC contactor housing; the terminal is inserted into the DC contactor housing, and the drive system drives the moving contact system 102 to move linearly, and opens or closes the circuit with the terminal.

[0055] The driving system of the embodiment of the present application can drive the moving contact system 102 to move in a straight line direction, so that the moving contact system 102 and the terminal assembly 112 can be closed or opened. The embodiment of the present application sets a visual window 105 on the linear motion path of the moving contact system 102, so that the first indicator 103 and the second indicator 104 can be aligned with the visual window 105 respectively to realize the indication of the opening and closing states. Therefore, the embodiment of the present application can directly observe the opening and closing states of the moving contact system 102 and the terminal system, which is convenient for the staff to disassemble and maintain.

[0056] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A DC contactor housing, characterized in that: It includes a protective shell body, which has an installation chamber that can accommodate a moving contact system, and a first indicator member and a second indicator member are fixed to the moving contact system, and the first indicator member and the second indicator member are arranged along the movement path of the moving contact system; a side wall of the protective shell body is provided with a visual window located on the movement path; the opening of the moving contact system drives the first indicator member to correspond to the visual window, or the closing of the moving contact system drives the second indicator member to correspond to the visual window.

2. The DC contactor housing according to claim 1, characterized in that: A mounting platform is provided on one side of the moving contact system close to the visual window; a plane where the mounting platform is located is parallel to the visual window; and the first indicator and the second indicator are arranged side by side on the mounting platform.

3. The DC contactor housing according to claim 2, characterized in that: The first indicator member and the second indicator member are both sheet members attached to the mounting platform; the plane area of ​​the sheet member is greater than or equal to the area of ​​the visible window; the first indicator member or the second indicator member can cover the visible window when flush with the visible window.

4. The DC contactor housing according to claim 2, characterized in that: The first indicator member and the second indicator member are fixed on the mounting platform via a clamping structure; or, the first indicator member and the second indicator member are fixed on the mounting platform via an adhesive connection layer.

5. The DC contactor housing according to claim 1, characterized in that: A switch-off mark is provided on a surface of one side of the first indicator member close to the visual window; a switch-on mark is provided on a surface of one side of the second indicator member close to the visual window.

6. The DC contactor housing according to any one of claims 1 to 5, characterized in that: The protective shell body includes a first shell and a second shell; the first shell and the second shell are connected via a shell clamping structure.

7. The DC contactor housing according to claim 6, characterized in that: The visible window is arranged on the first shell, and an isolation protection cover is arranged in the first shell; the moving contact system is installed in the chamber of the isolation protection cover; the isolation protection cover is made of transparent insulating material and is used to isolate the arc on the moving contact system.

8. The DC contactor housing according to claim 7, characterized in that: The opening of the isolation protection cover is covered with a yoke plate; the yoke plate is sealed and connected to the opening of the isolation protection cover via a connecting piece.

9. The DC contactor housing according to claim 6, characterized in that: The shell snap-fitting structure comprises a plurality of snap-fitting protrusions spaced apart on the circumferential side wall of the first shell and a plurality of snap-fitting grooves spaced apart on the second shell; the plurality of snap-fitting protrusions are snap-fitted with the plurality of snap-fitting grooves in a one-to-one corresponding manner.

10. A DC contactor, characterized in that: It comprises a DC contactor housing, a drive system, a moving contact system and a terminal assembly as described in any one of claims 1 to 9; the drive system and the moving contact system are both arranged in the DC contactor housing; the terminal is inserted into the DC contactor housing, and the drive system drives the moving contact system to move linearly and open or close the circuit with the terminal.

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