Contact system and contactor

Abstract

The utility model discloses a contact system and a contactor, and belongs to the technical field of novel electric appliance switches. The protective cover is connected with the magnetic conductive tube; a coil cover assembly equipped with the protective cover; the coil framework is assembled on the coil cover assembly; the arc extinguishing assembly is connected with the coil framework; the contact system and the contactor have the advantages of a mutually linked integral sealing structure, high structural strength, IP68 protection grade performance, internal cavity inflation, part manufacturing process optimization, use of recyclable materials, energy conservation and low carbon in the processing process, assembly process optimization, convenient installation, convenient automatic assembly, improvement of working efficiency, low cost, zero power consumption of the coil body and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of novel electrical switches, and in particular relates to a contact system and a contactor. Background Art

[0002] As one of the most widely used electrical switches, contactors are in huge demand. Existing similar DC contactors have the problems of high coil power consumption, low protection level, low structural strength, "self-explosion" similar to a bullet warhead under extreme conditions, or complex manufacturing process and high cost. Therefore, it is necessary to develop a contact system and contactor to solve the existing problems. Utility Model Content

[0003] The utility model aims to provide a contact system and a contactor to solve the problem of low structural strength.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a contact system, comprising:

[0005] Magnetic tube;

[0006] A protective cover connected to the magnetic conductive tube;

[0007] Assembling the coil cover assembly of the protective cover;

[0008] A coil frame assembled to the coil cover assembly;

[0009] An arc extinguishing component connected to the coil frame.

[0010] Preferably, the arc extinguishing assembly comprises:

[0011] An arc extinguishing chamber connected to the coil frame;

[0012] An arc extinguishing hood connected to the arc extinguishing chamber.

[0013] Preferably, the arc extinguishing hood assembly comprises: an arc extinguishing hood;

[0014] Two static contacts mounted on the arc extinguishing hood;

[0015] A gas filling pipe connected to the arc extinguishing hood for injecting gas;

[0016] An arc extinguishing hood rubber blocking fence connected to the arc extinguishing hood for assembling the arc extinguishing chamber.

[0017] Preferably, the arc chute is provided with at least one or more combinations of an arc chute screw fixing groove, an arc chute screw fixing boss, an arc chute screw limiting boss, and an arc chute contact system limiting groove for connection.

[0018] Preferably, the arc extinguishing chamber is provided with an arc extinguishing chamber glue blocking fence for assembling a protective cover and an arc extinguishing chamber isolation groove for installing the static contact.

[0019] Preferably, the arc extinguishing chamber is also provided with at least one or more combinations of a first screw fixing groove for installing a second screw, a second screw fixing groove for the arc extinguishing chamber corresponding to the arc extinguishing cover screw limiting boss, and an arc extinguishing chamber screw limiting groove corresponding to the coil frame screw fixing column.

[0020] Preferably, the protective cover is provided with at least one or more combinations of a first protective cover rubber fence for installing the magnetic conductive tube, a second protective cover rubber fence installed to match the arc extinguishing chamber rubber fence, a protective cover screw limiting boss installed to match the coil cover screw limiting groove, a protective cover limiting hole installed to match the coil frame screw fixing column, and a protective cover screw fixing column fixed to the protective cover screw limiting boss.

[0021] Preferably, the coil cover assembly is provided with at least one or more combinations of a coil cover, a first conductive rod matching the conductive rod through hole of the coil skeleton, a coil cover screw fixing groove connected to the first screw, a coil cover screw limiting groove corresponding to the protective cover screw limiting boss, and a coil cover glue blocking fence for assembling the magnetic conductive tube.

[0022] Preferably, the coil skeleton is provided with at least one or more combinations of a coil skeleton screw fixing column corresponding to the protective cover limiting hole, a coil skeleton screw fixing column corresponding to the arc extinguishing chamber screw limiting groove, a coil skeleton conductive rod through hole corresponding to the first conductive rod, and a coil skeleton screw limiting platform in contact with the coil skeleton screw fixing column.

[0023] The utility model further provides a contactor, comprising: the above-mentioned contact system;

[0024] A contact bridge matching the contact system;

[0025] An electromagnetic coil that drives the contact bridge to move through an action mechanism;

[0026] And a housing and an upper cover for sealing the contact system.

[0027] Preferably, the gap between the housing and the contact system is filled with potting glue.

[0028] Preferably, the gaps among the housing, the contact system and the upper cover are filled with potting glue.

[0029] Preferably, the space between the housing and the contact system is filled with gas.

[0030] Preferably, both ends of the electromagnetic coil are provided with guide sleeves with self-lubricating properties.

[0031] Preferably, a coil buffer pad is provided at the end of the electromagnetic coil away from the contact bridge.

[0032] Preferably, the shell is provided with a glue guiding groove filled with potting glue.

[0033] The technical effects and advantages of the utility model are as follows: the contact system and contactor have an interconnected integral sealing structure, high structural strength, IP68 protection grade performance, internal cavity inflation, optimized component manufacturing process, use of recyclable materials, energy-saving and low-carbon processing, optimized assembly process, easy installation, convenient automated assembly, improved work efficiency, low cost, zero power consumption of the coil body, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the contactor of the utility model;

[0035] Figure 2 This is a top view of the contactor of the utility model without the upper cover installed;

[0036] Figure 3 For the utility model Figure 2 Sectional view of AA in the middle;

[0037] Figure 4 It is a top view of the contactor of the utility model;

[0038] Figure 5 For the utility model Figure 4 Cross-sectional view of the middle BB;

[0039] Figure 6 This is a schematic diagram of the structure of the contactor of the utility model without the housing installed;

[0040] Figure 7 It is a three-dimensional diagram of the upper cover of the utility model;

[0041] Figure 8 It is a three-dimensional diagram of the upper cover of the utility model;

[0042] Fig. 9 It is a structural schematic diagram of the housing of the utility model;

[0043] Fig.10 This is a bottom view of the housing of the utility model;

[0044] Fig.11 It is a three-dimensional diagram of the housing of the utility model viewed from the bottom;

[0045] Fig.12 This is a schematic diagram of the structure of the coil protection plug of the utility model;

[0046] Fig.13It is a schematic diagram of the assembly of the coil cover assembly, the protective cover, the arc extinguishing chamber and the magnetic conductive tube of the utility model;

[0047] Fig.14 It is a schematic diagram of the assembly of the coil cover assembly, the protective cover and the magnetic conductive tube of the utility model;

[0048] Fig.15 It is a schematic diagram of the contact system and the inflation tube of the utility model;

[0049] Fig.16 It is a structural schematic diagram of the contact system of the utility model;

[0050] Fig.17 It is a top view of the arc extinguishing chamber of the utility model;

[0051] Fig.18 It is a top view of the arc extinguishing cover assembly of the utility model;

[0052] Fig.19 This is a schematic diagram of the assembly of the coil cover assembly and the protective cover of the utility model;

[0053] Fig. 20 It is a three-dimensional diagram of the coil cover assembly of the utility model;

[0054] Fig.21 It is a three-dimensional diagram of the coil cover assembly of the utility model;

[0055] Fig. 22 This is a schematic diagram of the structure of the protective cover of the utility model;

[0056] Fig.23 This is a schematic diagram of the structure of the magnetic conductive tube of the utility model;

[0057] Fig.24 It is a schematic diagram of the structure of the coil skeleton of the utility model;

[0058] Fig.25 It is a three-dimensional diagram of the arc extinguishing chamber of the utility model;

[0059] Fig.26 It is a three-dimensional diagram of the arc extinguishing chamber of the utility model;

[0060] Fig. 27 This is a schematic diagram of the structure of the contact sealing ring of the utility model;

[0061] Fig.28 It is a three-dimensional diagram of the arc extinguishing cover assembly of the utility model;

[0062] Fig.29 This is a three-dimensional diagram of the arc extinguishing cover assembly of the utility model when viewed from above.

[0063] In the figure: 101, first screw; 102, coil cover assembly; 102-1, first conductive rod; 102-2, coil cover; 102-3, coil cover screw fixing groove; 102-4, coil cover screw limiting groove; 102-5, coil cover rubber fence; 103, protective cover; 103-1, protective cover limiting hole; 103-2, protective cover screw fixing column; 103-3, protective cover screw limiting boss; 103-4, protective cover first rubber fence; 103-5, protective cover second rubber fence; 104, magnetic tube; 105, coil Skeleton; 105-1, coil skeleton screw fixing column; 105-2, coil skeleton screw limiting platform; 105-3, coil skeleton conductive rod through hole; 106, arc extinguishing chamber; 106-1, arc extinguishing chamber first screw fixing groove; 106-2, arc extinguishing chamber isolation groove; 106-3, arc extinguishing chamber second screw fixing groove; 106-4, arc extinguishing chamber screw limiting groove; 106-5, arc extinguishing chamber rubber blocking fence; 107, contact sealing ring; 108, second screw; 109, arc extinguishing cover assembly; 109-1, inflation tube; 109-2, static contact; 109-4, arc extinguishing cover screw fixing groove; 109-5, arc extinguishing cover screw fixing boss; 109-6, arc extinguishing cover rubber blocking fence; 109-7, arc extinguishing cover screw limiting boss; 109-8, arc extinguishing cover contact system limiting groove; 109-9, arc extinguishing cover; 110, third screw; 111, contact system; 112, coil protection plug; 113, housing; 113-1, housing contact system limiting boss; 113-2, rubber guide groove; 1 13-3, coil outlet groove; 113-4, glue pouring groove; 114, upper cover; 114-1, glue pouring groove of upper cover; 114-2, first screw fixing groove of upper cover; 114-3, second screw fixing groove of upper cover; 115, coil lead; 116, potting glue; 117, electromagnetic coil; 118, contact spring; 119, contact bridge; 120, energy-saving board; 121, coil buffer pad; 122, fourth screw; 123, guide bushing. DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0065] The utility model provides Fig.15 , Fig.16A contact system 111 is shown in the figure, and the contact system 111 is a contact system 111 of an interconnected integral sealing structure: comprising: a coil cover assembly 102, a coil frame 105, a magnetic tube 104, a protective cover 103, an arc extinguishing chamber 106, and an arc extinguishing cover assembly 109 which are sequentially connected from bottom to top;

[0066] like Fig.19 , Fig. 20 , Fig.21 As shown, a coil cover assembly 102 is provided with a coil cover glue blocking fence 102-5 or a coil cover screw limiting groove 102-4 or a coil cover screw fixing groove 102-3 or a coil cover 102-2 or a first conductive rod 102-1;

[0067] like Fig.24 As shown, the coil frame 105 is provided with a coil frame screw fixing column 105-1 or a coil frame conductive rod through hole 105-3 or a coil frame screw limiting platform 105-2;

[0068] A protective cover 103 having a first protective cover first blocking rubber fence 103-4, or having a protective cover limiting hole 103-1, or having a protective cover screw limiting boss 103-3, or having a protective cover screw fixing column 103-2, or having a protective cover second blocking rubber fence 103-5;

[0069] like Fig.17 , Fig. 22 As shown, an arc extinguishing chamber 106 is provided with an arc extinguishing chamber glue blocking fence 106-5 or a first arc extinguishing chamber screw fixing groove 106-1 or an arc extinguishing chamber isolation groove 106-2 or an arc extinguishing chamber screw limiting groove 106-4 or an arc extinguishing chamber second screw fixing groove 106-3; as Fig. 27 As shown, the arc extinguishing chamber 106 is provided with a contact sealing ring 107;

[0070] like Fig.18 , Fig.28 , Fig.29 As shown, an arc chute assembly 109 is provided with an arc chute rubber blocking fence 109-6, or an arc chute screw limiting boss 109-7, or an arc chute contact system limiting groove 109-8, or an arc chute screw fixing boss 109-5, or an arc chute screw fixing groove 109-4, or a static contact 109-2, or an air filling tube 109-1;

[0071] Advantages of the interconnected integral sealing structure: Each part not only performs its own sealing function, but is also connected to each other as a whole through ingenious design, thereby enhancing the reliability, stability and durability of the sealing system;

[0072] Integrated design: The interconnected integral sealing structure is designed with the cooperation and support between the various parts in mind, ensuring good sealing performance when subjected to pressure changes;

[0073] Multi-layer sealing: The interconnected integral sealing structure may contain multiple layers of sealing links, each layer plays a certain role in blocking and compensating. Even if one layer of sealing fails, the other layers can still maintain the basic sealing effect, which increases the safety of the product;

[0074] Reduce leakage: The multi-layer protective package of the interconnected integral sealing structure is interconnected and fixed with screws, which can effectively prevent the leakage of gas media. It is especially suitable for use in dynamic or static sealing occasions to ensure the sealing performance, contact reliability and arc extinguishing performance reliability of the product;

[0075] Easy assembly: The interconnected integral sealing structure simplifies the assembly steps. The new sealing structure is simple in design, easy to install, and convenient for automated assembly, which improves work efficiency and also improves the standardization and interchangeability of parts.

[0076] Strong adaptability: The interconnected integral sealing structure can maintain a stable sealing effect for a long time due to its reliable structure and long service life; especially in the case of limited space, it can still maintain a good sealing effect;

[0077] Strong vibration and temperature resistance: The interconnected integral sealing structure has good vibration resistance, reduces stress concentration and cracking caused by impact vibration, still maintains the sealing effect, and has strong adaptability to changes in pressure and temperature;

[0078] The utility model also provides Figure 1 , Figure 4 , Figure 6 A contactor shown in the figure comprises a contact system 111 having a novel mutually linked integral sealing structure, a contact bridge 119 matching the contact system 111, an electromagnetic coil 117 driving the contact bridge 119 to move through an action mechanism, and a housing 113 and an upper cover 114 for sealing the contact system 111;

[0079] The contact bridge 119 is in conflict with the contact spring 118;

[0080] like Figure 5 As shown, a coil buffer pad 121 is provided at the bottom of the electromagnetic coil 117; guide sleeves 123 are provided at both ends of the electromagnetic coil 117. The guide sleeves 123 are made of a self-lubricating material, the action mechanism has a low friction coefficient, smooth movement, and excellent product action characteristics, thereby optimizing the electrical performance of the contactor;

[0081] The coil cover 102-2, the protective cover 103, the arc extinguishing chamber 106, and the arc extinguishing cover 109-9 can be engineering plastics or industrial ceramics, but are not limited to the material type; the arc extinguishing chamber 106 and the arc extinguishing cover assembly 109 can be combined into one; Figure 2 ,like Figure 3 As shown, the potting glue 116 may be epoxy resin, but is not limited to the glue type; the gas may be nitrogen or hydrogen or a mixed gas, but is not limited to the gas type;

[0082] The shape can be round or square, but is not limited to the shape; the coil control part of this contactor can also add an energy-saving board 120 according to demand;

[0083] When the electromagnetic coil 117 of the contactor is powered by a positive pulse, the electromagnetic coil 117 generates a magnetic field, and the actuating mechanism drives the contact bridge 119 to move and contact and close with the static contact 109-2; when the electromagnetic coil 117 of the contactor is powered by a reverse pulse, the electromagnetic coil 117 generates a magnetic field, and the actuating mechanism drives the contact bridge 119 to move and disengage from the static contact 109-2;

[0084] like Fig.13 , Fig.14 , Fig.15 The manufacturing method of the contactor shown comprises the following steps:

[0085] 1. Assemble the electromagnetic coil 117: Assemble the coil cover assembly 102, coil frame 105, magnetic tube 104, protective cover 103 and other parts. The coil frame conductive rod through hole 105-3 corresponds to the first conductive rod 102-1. The coil frame 105 is installed in the coil cover assembly 102. Fig.23 As shown, the magnetic conductive tube 104 is installed in the coil cover rubber blocking fence 102-5 of the coil cover assembly 102, the protective cover limiting hole 103-1 corresponds to the coil skeleton screw fixing column 105-1, the protective cover screw limiting boss 103-3 corresponds to the coil cover screw limiting groove 102-4, the protective cover 103 is installed in the coil cover assembly 102, the magnetic conductive tube 104 is installed in the protective cover first rubber blocking fence 103-4 of the protective cover 103, and the first screw 101 is installed in the coil cover screw fixing groove 102-3;

[0086] 2. If Fig.25 , Fig.26 As shown, the arc extinguishing chamber (106) is assembled: the arc extinguishing chamber screw limiting groove 106-4 corresponds to the coil frame screw fixing column 105-1, the second rubber blocking fence 103-5 of the protective cover is installed in the arc extinguishing chamber rubber blocking fence 106-5, and the second screw 108 is installed in the first screw fixing groove 106-1 of the arc extinguishing chamber;

[0087] 3. If Fig.28 , Fig.29As shown, the arc extinguishing cover 109 is assembled: the arc extinguishing cover screw limiting boss 109-7 corresponds to the arc extinguishing chamber second screw fixing groove 106-3, the arc extinguishing chamber 106 is installed into the arc extinguishing cover rubber blocking fence 109-6, and the arc extinguishing cover screw fixing groove 109-4 is installed into the third screw 110; the contact system 111 is assembled;

[0088] 4. If Fig. 9 , Fig.10 , Fig.11 , Fig.12 As shown, the housing 113 is assembled: the coil lead 115 passes through the coil outlet groove 113-3, the coil protection plug 112 is installed in the glue filling groove 113-4 of the housing 113, the housing contact system limiting boss 113-1 corresponds to the arc extinguishing cover contact system limiting groove 109-8, and the contact system 111 is installed in the housing 113;

[0089] 5. Potting glue: The potting glue 116 flows along the glue guide groove 113 - 2 to fill the gap between the housing 113 and the contact system 111 ; the arc extinguishing cover screw fixing groove 109 - 4 is filled with the potting glue 116 ;

[0090] 6. Inflation: Use a vacuum inflation table to fill the inflation tube 109-1 with gas at a certain pressure, and use special pliers to clamp and seal the inflation tube 109-1.

[0091] 7. If Figure 7 , Figure 8 As shown, assemble the upper cover 114: the second screw fixing groove 114-3 of the upper cover corresponds to the arc extinguishing cover screw fixing boss 109-5, and the first screw fixing groove 114-2 of the upper cover is installed with the fourth screw 122;

[0092] 8. Potting glue: The potting glue 116 flows along the upper cover glue groove 114 - 1 to fill the gaps between the housing 113 and the contact system 111 and the upper cover 114 .

[0093] The contact system and contactor have the advantages of interconnected integral sealing structure, high structural strength, IP68 protection grade performance, internal cavity inflation, optimized component manufacturing process, use of recyclable materials, energy-saving and low-carbon processing, optimized assembly process, convenient installation, easy automated assembly, improved work efficiency, low cost, and zero power consumption of the coil body.

[0094] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A contact system (111), characterized in that: include: Magnetic conductive tube (104); A protective cover (103) connected to the magnetic conductive tube (104); A coil cover assembly (102) assembled with the protective cover (103); A coil frame (105) assembled on the coil cover assembly (102); An arc extinguishing component connected to the coil frame (105).

2. A contact system (111) according to claim 1, characterized in that: The arc extinguishing assembly comprises: An arc extinguishing chamber (106) connected to the coil frame (105); An arc extinguishing hood assembly (109) connected to the arc extinguishing chamber (106).

3. A contact system (111) according to claim 2, characterized in that: The arc extinguishing hood assembly (109) comprises: an arc extinguishing hood (109-9); Two static contacts (109-2) mounted on the arc extinguishing cover (109-9); A gas filling pipe (109-1) connected to the arc extinguishing hood (109-9) and used for injecting gas; An arc extinguishing hood rubber blocking fence (109-6) connected to the arc extinguishing hood (109-9) and used for assembling the arc extinguishing chamber (106).

4. A contactor, characterized in that: include: The contact system (111) according to any one of claims 1 to 3; A contact bridge (119) matching the contact system (111); An electromagnetic coil (117) that drives the contact bridge (119) to move via an action mechanism; And a housing (113) and an upper cover (114) for sealing the contact system (111).

5. A contactor according to claim 4, characterized in that: The gap between the housing (113) and the contact system (111) is filled with potting glue (116).

6. A contactor according to claim 4, characterized in that: The gaps between the housing (113), the contact system (111) and the upper cover (114) are filled with potting glue (116).

7. A contactor according to claim 4, characterized in that: The space between the housing (113) and the contact system (111) is filled with gas.

8. A contactor according to claim 4, characterized in that: Both ends of the electromagnetic coil (117) are provided with guide sleeves (123) with self-lubricating properties.

9. A contactor according to claim 4, characterized in that: A coil buffer pad (121) is provided at the end of the electromagnetic coil (117) away from the contact bridge (119).

10. A contactor according to claim 5, characterized in that: The housing (113) is provided with a glue guide groove (113-2) filled with potting glue (116).

Images