Automobile relay and control method thereof

Abstract

The invention discloses an automobile relay, which belongs to the technical field of relays, and is characterized in that the automobile relay comprises a base part, a magnetic circuit part, a movable spring armature part and a shell, and further comprises a plurality of leading-out pins which are arranged on the base part and wrap a first static contact and a second static contact; the armature piece is arranged on the movable spring armature part, and the armature piece is provided with movable contacts corresponding to the first static contact and the second static contact; the first elastic piece is arranged between the movable spring armature part and the base part; the buffer assembly is mounted on the movable spring armature part and acts on the armature piece; wherein the movable spring armature part is movably connected with the base part, and the magnetic circuit part is installed on the base part. The relay can improve the buffer when the movable contact abuts against the static contact when the relay is used.

Description

Technical Field

[0001] The present application belongs to the technical field of relays, and in particular, relates to an automotive relay and a control method thereof. Background Art

[0002] A relay is an automatic control device that will cause a jump in output when the input reaches a certain value. An electric vehicle relay refers to a relay used in electric vehicles. This type of relay has a large load switching power and is highly resistant to impact and vibration. Electromagnetic relays are usually wound with coils, and the magnetic force generated by the coils is generally used to control the on and off of each contact, thereby achieving control of the circuit in the electric vehicle.

[0003] The existing Chinese patent with publication number CN102856119B discloses a small-sized high-current PCB automotive relay, comprising a base part, a magnetic circuit part, a movable spring armature part and a shell; the base part comprises a base and a static spring fixed to the base, and the static spring is provided with a static spring lead-out pin; the magnetic circuit part comprises a coil part and a yoke fixed to the coil part; the movable spring armature part comprises a movable spring piece and an armature fixed to the movable spring piece; the movable spring armature part is fixed to the yoke through the movable spring piece so that the armature is in a position corresponding to the coil part; a yoke lead-out pin extending from the yoke is provided on the yoke of the magnetic circuit part to realize the lead-out of the movable spring piece electrical signal; the magnetic circuit part is fixed to the base through the yoke; the yoke is also provided with a positioning and fixing structure so that the magnetic circuit part is positioned in the horizontal direction and the vertical direction in the base.

[0004] Although the above-mentioned automobile relay has a simple structure and good assembly processability, when the relay is used, the contacts directly contact without buffering to conduct current. Improvement is required for this. Summary of the invention

[0005] The purpose of the present application is to provide an automotive relay and a control method thereof in order to solve the above-mentioned technical problems, so as to improve the buffering when the moving contact and the static contact collide with each other when the relay is in use.

[0006] The present application provides an automotive relay, comprising a base portion, a magnetic circuit portion, a spring-armature portion and a housing, and further comprising:

[0007] Lead pins are provided in plurality and are placed on the base portion, and the lead pins cover the first static contact and the second static contact;

[0008] An armature piece is disposed on the movable spring armature part, and the armature piece is provided with a movable contact corresponding to the first static contact and the second static contact;

[0009] A first elastic member is disposed between the movable spring armature portion and the base portion;

[0010] A buffer assembly is mounted on the movable spring armature portion and acts on the armature member;

[0011] The movable spring armature part is movably connected to the base part, and the magnetic circuit part is installed on the base part.

[0012] The lead pins are connected to a power source, a controller, etc. for electrical connection. The first static contact and the second static contact are separately connected to the corresponding lead pins respectively. The armature piece and the magnetic circuit part are both connected to separate lead pins. The armature piece and the moving spring armature part are hinged. The first elastic part adopts a spring. Under normal circumstances, the moving contact and the first static contact are controlled to be against each other by the first elastic part. When the magnetic circuit part is energized to generate magnetic force acting on the moving spring armature part, the moving spring armature part is controlled to rotate so that the moving contact and the second static contact are against each other. When the moving spring armature part rotates and moves, the moving contact and the first static contact and the second static contact are against each other to produce a collision. The buffer component is used for buffering to reduce the impact effect, thereby further improving the stability of the relay during use.

[0013] Furthermore, the buffer assembly includes:

[0014] A buffer housing is mounted on the movable spring armature part;

[0015] A buffer cover body is installed and connected with the buffer shell;

[0016] A second elastic member is disposed in the buffer housing and on both sides of the armature member;

[0017] A damper is mounted on both sides of the armature;

[0018] Wherein, the buffer housing is provided with a movable hole corresponding to the armature piece.

[0019] The buffer housing is installed on the movable spring armature part, the buffer cover body is installed on the buffer housing, the damper is hinged on both sides of the armature part, and is respectively hinged to the buffer housing and the buffer cover body, the second elastic part adopts a spring, the second elastic part is sleeved on the damper and one end is against the armature part, the other end of the second elastic part is correspondingly against the buffer housing and the buffer cover body, the armature part passes through the movable hole, the relative movement between the armature part and the buffer housing is facilitated by the movable hole, and the buffering performance of the armature part is realized by the second elastic part and the damper.

[0020] Furthermore, the buffer shell is provided with a first hinge groove, the buffer cover is provided with a second hinge groove, and the armature member is provided with a rotating shaft, and the rotating shaft is adapted to the first hinge groove and the second hinge groove.

[0021] After the buffer shell and the buffer cover body are matched, the first hinge groove and the second hinge groove are matched with each other, and the rotating shaft of the armature is hinged in the first hinge groove and the second hinge groove, which is convenient for the stability of the connection structure between the armature, the buffer shell and the buffer cover body.

[0022] Furthermore, the buffer shell is provided with a first buckle portion, and the buffer cover is provided with a first buckle groove adapted to the first buckle portion.

[0023] The first buckle portion cooperates with the first buckle groove to install and connect the buffer shell and the buffer cover body, thereby improving the installation convenience between the buffer shell and the buffer cover body.

[0024] Furthermore, the base portion is provided with a second buckle portion, and the shell is provided with a second buckle groove adapted to the second buckle portion.

[0025] The second buckle portion cooperates with the second buckle groove to install and connect the base and the shell, thereby improving the installation convenience between the base and the shell.

[0026] Furthermore, the buffer housing and the movable spring armature part are connected via a connecting structure, and the connecting structure includes:

[0027] A threaded rod, disposed on the movable spring armature portion;

[0028] A threaded sleeve is disposed in the buffer housing, and a handle is provided at one end of the threaded sleeve;

[0029] A third elastic member is disposed between the threaded sleeve and the buffer housing;

[0030] A limiting member is disposed on the buffer housing;

[0031] Among them, the threaded rod and the threaded sleeve are matched with each other, the threaded sleeve is provided with a limiting groove adapted to the limiting member, and the threaded sleeve is provided with a conical surface.

[0032] The connection structure is used to improve the installation convenience between the buffer housing and the movable spring armature part, and at the same time improve the stability of the installation structure. The threaded rod passes through the installation holes of the movable spring armature part and the buffer housing, and is connected to the movable spring armature part through the threaded pair between the threaded sleeve and the threaded rod. The buffer housing is installed and connected to the movable spring armature part. The third elastic member adopts an elastic gasket to improve the installation stability between the buffer housing and the movable spring armature part. After the threaded sleeve is tightened, the limit member cooperates with the limit groove to make the threaded sleeve difficult to rotate. The limit member is V-shaped and has elastic properties. The conical surface facilitates the slow deformation of the limit member when the threaded sleeve rotates until the limit member cooperates with the limit groove, thereby further improving the installation stability of the connection structure.

[0033] Furthermore, plug-in parts are provided at both ends of the limiting member, the buffer shell is provided with a groove corresponding to the limiting member, and the buffer shell is provided with a plug-in groove connected to the groove and adapted to the plug-in part.

[0034] Insertion parts are arranged at both ends of the limiter, and the insertion parts are inserted into the insertion grooves by compressing the limiter, and the limiter is installed in the buffer shell through the grooves and the insertion grooves, thereby improving the installation convenience and stability of the limiter after installation.

[0035] The present application also provides a control method for an automotive relay, the specific steps of which include:

[0036] S1, in normal state, the magnetic circuit is not energized, and the movable spring armature part, under the action of the first elastic member, causes the first static contact to abut against the movable contact;

[0037] S2, when the magnetic circuit is energized, magnetic force is generated, which acts on the movable spring armature part, causing the second static contact to offset the movable contact.

[0038] The activity of the movable spring armature part is controlled by the magnetic circuit part and the first elastic part, so that the movable contact is switched to the position where it abuts against the first static contact and the second static contact. During the switching process, the movable contact is buffered by the buffer component when it collides with the first static contact or the second static contact, thereby improving the structural stability during switching.

[0039] The beneficial effects of this application are:

[0040] 1. When the movable spring armature part rotates, the movable contact collides with the first static contact and the second static contact, and the buffer component is used to buffer and reduce the impact, thereby further improving the stability of the relay during use.

[0041] 2. The relative movement between the armature and the buffer housing is facilitated by the movable hole, and the buffering performance of the armature is achieved by the second elastic member and the damper.

[0042] 3. The connection structure improves the installation convenience between the buffer housing and the movable spring armature part, while improving the stability of the installation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram of the structure of the relay of this application;

[0044] Figure 2 This is a schematic diagram of the structure of the buffer assembly of the present application;

[0045] Figure 3 This is a schematic diagram of the connection structure of the present application;

[0046] Figure 4 This is a schematic diagram of the structure of the limiter of this application;

[0047] Reference numerals in the figure are: 100, base portion; 110, second buckle portion; 200, magnetic circuit portion; 300, movable spring armature portion; 400, housing; 410, second buckle groove; 500, lead pin; 510, first static contact; 520, second static contact; 600, armature member; 610, movable contact; 620, rotating shaft; 700, first elastic member; 800, buffer assembly; 810, buffer housing; 811, movable hole; 812 , first hinge groove; 813, first snap-fit ​​portion; 820, buffer cover body; 821, second hinge groove; 822, first snap-fit ​​groove; 830, second elastic member; 840, damper; 850, connecting structure; 851, threaded rod; 852, threaded sleeve; 8521, handle; 853, third elastic member; 854, limiting member; 855, limiting groove; 856, conical surface; 857, plug-in portion; 858, groove; 859, plug-in groove. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0049] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0050] The following provides a detailed description of the embodiments of the present application through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0051] Embodiment 1:

[0052] like Figure 1 , Figure 2 As shown, the embodiment of the present application provides an automotive relay, including a base portion 100, a magnetic circuit portion 200, a spring-armature portion 300 and a housing 400, and further includes:

[0053] Lead pins 500 are provided in plurality and are placed on the base portion 100 , and the lead pins 500 cover the first static contact 510 and the second static contact 520 ;

[0054] The armature piece 600 is disposed on the movable spring armature part 300 , and the armature piece 600 is provided with a movable contact 610 corresponding to the first static contact 510 and the second static contact 520 ;

[0055] The first elastic member 700 is disposed between the movable spring armature portion 300 and the base portion 100;

[0056] A buffer assembly 800 is mounted on the movable spring armature portion 300 and acts on the armature member 600;

[0057] The movable spring armature part 300 is movably connected to the base part 100 , and the magnetic circuit part 200 is installed on the base part 100 .

[0058] The lead pin 500 is connected to a power source, a controller, etc. for electrical connection. The first static contact 510 and the second static contact 520 are separately connected to the corresponding lead pins 500. The armature 600 and the magnetic circuit part 200 are both connected to the separate lead pins 500. The armature 600 and the movable spring armature part 300 are hinged. The first elastic part 700 adopts a spring. Under normal conditions, the movable contact 610 and the first static contact 510 are controlled to abut against each other by the first elastic part 700. When the magnetic circuit part 200 is energized to generate a magnetic force acting on the movable spring armature part 300, the movable spring armature part 300 is controlled to rotate so that the movable contact 610 and the second static contact 520 are abutted against each other. When the movable spring armature part 300 rotates and moves, the movable contact 610 and the first static contact 510 and the second static contact 520 are abutted against each other to produce a collision. The buffer component 800 is used for buffering to reduce the impact and further improve the stability of the relay during use.

[0059] Furthermore, the buffer assembly 800 includes:

[0060] The buffer housing 810 is mounted on the movable spring armature part 300;

[0061] The buffer cover 820 is installed and connected with the buffer shell 810;

[0062] The second elastic member 830 is disposed in the buffer housing 810 and disposed on both sides of the armature member 600;

[0063] The damper 840 is mounted on both sides of the armature 600;

[0064] The buffer housing 810 is provided with a movable hole 811 corresponding to the armature 600 .

[0065] The buffer housing 810 is installed on the movable spring armature part 300, the buffer cover body 820 is installed on the buffer housing 810, the damper 840 is hinged on both sides of the armature member 600, and is respectively hinged to the buffer housing 810 and the buffer cover body 820, the second elastic member 830 adopts a spring, the second elastic member 830 is sleeved on the damper 840 and one end is against the armature member 600, and the other end of the second elastic member 830 is correspondingly against the buffer housing 810 and the buffer cover body 820, the armature member 600 passes through the movable hole 811, and the movable hole 811 facilitates the relative movement between the armature member 600 and the buffer housing 810, and the buffering performance of the armature member 600 is realized through the second elastic member 830 and the damper 840.

[0066] Furthermore, the buffer shell 810 is provided with a first hinge groove 812 , the buffer cover 820 is provided with a second hinge groove 821 , and the armature 600 is provided with a rotating shaft 620 , and the rotating shaft 620 is adapted to the first hinge groove 812 and the second hinge groove 821 .

[0067] After the buffer shell 810 and the buffer cover body 820 are matched, the first hinge groove 812 and the second hinge groove 821 are matched with each other, and the rotating shaft 620 of the armature 600 is hinged in the first hinge groove 812 and the second hinge groove 821, which facilitates the stability of the connection structure 850 between the armature 600 and the buffer shell 810 and the buffer cover body 820.

[0068] Furthermore, the buffer shell 810 is provided with a first buckle portion 813 , and the buffer cover 820 is provided with a first buckle groove 822 adapted to the first buckle portion 813 .

[0069] The first buckle portion 813 cooperates with the first buckle groove 822 to install and connect the buffer shell 810 and the buffer cover 820, thereby improving the convenience of installation between the buffer shell 810 and the buffer cover 820.

[0070] Furthermore, the base portion 100 is provided with a second buckle portion 110 , and the housing 400 is provided with a second buckle groove 410 adapted to the second buckle portion 110 .

[0071] The second buckle portion 110 cooperates with the second buckle groove 410 to install and connect the base and the shell 400, thereby improving the installation convenience between the base and the shell 400.

[0072] Embodiment 2:

[0073] like Figure 2-Figure 4 As shown, the embodiment of the present application provides an automotive relay. In addition to the above technical features, the buffer housing 810 is connected to the movable spring armature part 300 through a connecting structure 850. The connecting structure 850 includes:

[0074] The threaded rod 851 is placed on the movable spring armature part 300;

[0075] The threaded sleeve 852 is disposed in the buffer housing 810 , and a handle 8521 is disposed at one end of the threaded sleeve 852 ;

[0076] A third elastic member 853 is disposed between the threaded sleeve 852 and the buffer housing 810;

[0077] The limiting member 854 is disposed on the buffer housing 810;

[0078] The threaded rod 851 cooperates with the threaded sleeve 852 , the threaded sleeve 852 is provided with a limiting groove 855 adapted to the limiting member 854 , and the threaded sleeve 852 is provided with a conical surface 856 .

[0079] The connection structure 850 is used to improve the installation convenience between the buffer housing 810 and the movable spring armature part 300, and at the same time improve the stability of the installation structure. The threaded rod 851 passes through the installation holes of the movable spring armature part 300 and the buffer housing 810, and is connected to the movable spring armature part 300 through the threaded pair between the threaded sleeve 852 and the threaded rod 851. The buffer housing 810 is installed and connected to the movable spring armature part 300. The third elastic member 853 adopts an elastic gasket to improve the installation stability between the buffer housing 810 and the movable spring armature part 300. After the threaded sleeve 852 is tightened, the limit member 854 cooperates with the limit groove 855 to make the threaded sleeve 852 difficult to rotate. The limit member 854 is V-shaped and has elastic properties. The conical surface 856 facilitates the slow deformation of the limit member 854 when the threaded sleeve 852 rotates until the limit member 854 cooperates with the limit groove 855, thereby further improving the installation stability of the connection structure 850.

[0080] Furthermore, both ends of the limiting member 854 are provided with plug-in portions 857 , the buffer shell 810 is provided with a groove 858 corresponding to the limiting member 854 , and the buffer shell 810 is provided with a plug-in slot 859 connected to the groove 858 and adapted to the plug-in portion 857 .

[0081] Insertion parts 857 are set at both ends of the limiting member 854. The insertion part 857 is inserted into the insertion groove 859 by compressing the limiting member 854. The limiting member 854 is installed in the buffer shell 810 through the groove 858 and the insertion groove 859, thereby improving the installation convenience and stability of the limiting member 854 after installation.

[0082] Embodiment 3:

[0083] The present application also provides a control method for an automotive relay, the specific steps of which include:

[0084] S1, in the normal state, the magnetic circuit part 200 is not energized, and the movable spring armature part 300, under the action of the first elastic member 700, causes the first static contact 510 to abut against the movable contact 610;

[0085] S2, when the magnetic circuit part 200 is energized, magnetic force is generated, which acts on the movable spring armature part 300, causing the second static contact 520 to abut against the movable contact 610.

[0086] The activity of the movable spring armature part 300 is controlled by the magnetic circuit part 200 and the first elastic part 700, so that the movable contact 610 is switched to the abutting position with the first static contact 510 and the second static contact 520. During the switching process, the movable contact 610 is buffered by the buffer component 800 when colliding with the first static contact 510 or the second static contact 520, thereby improving the structural stability during switching.

[0087] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0088] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An automotive relay, comprising a base portion (100), a magnetic circuit portion (200), a spring-loaded armature portion (300) and a housing (400), characterized in that: Also includes: A plurality of lead pins (500) are provided and are placed on the base portion (100), wherein the lead pins (500) cover the first static contact (510) and the second static contact (520); An armature piece (600) is placed on the movable spring armature part (300), and the armature piece (600) is provided with a movable contact (610) corresponding to the first static contact (510) and the second static contact (520); A first elastic member (700) is disposed between the movable spring armature portion (300) and the base portion (100); A buffer assembly (800) is mounted on the movable spring armature portion (300) and acts on the armature member (600); The movable spring armature part (300) is movably connected to the base part (100), and the magnetic circuit part (200) is installed on the base part (100).

2. The automotive relay according to claim 1, characterized in that: The buffer assembly (800) comprises: A buffer housing (810) is mounted on the movable spring armature part (300); A buffer cover (820) is installed and connected to the buffer shell (810); A second elastic member (830) is disposed in the buffer housing (810) and on both sides of the armature member (600); A damper (840) is mounted on both sides of the armature (600); Wherein, the buffer housing (810) is provided with a movable hole (811) corresponding to the armature (600).

3. The automotive relay according to claim 2, characterized in that: The buffer shell (810) is provided with a first hinge groove (812), the buffer cover (820) is provided with a second hinge groove (821), and the armature (600) is provided with a rotating shaft (620), and the rotating shaft (620) is adapted to the first hinge groove (812) and the second hinge groove (821).

4. The automotive relay according to claim 3, characterized in that: The buffer shell (810) is provided with a first buckle portion (813), and the buffer cover (820) is provided with a first buckle groove (822) adapted to the first buckle portion (813).

5. The automotive relay according to claim 4, characterized in that: The base portion (100) is provided with a second buckle portion (110), and the housing (400) is provided with a second buckle groove (410) adapted to the second buckle portion (110).

6. The automotive relay according to claim 5, characterized in that: The buffer housing (810) is connected to the movable spring armature part (300) via a connecting structure (850), and the connecting structure (850) comprises: A threaded rod (851) is disposed on the movable spring armature portion (300); A threaded sleeve (852) is placed on the buffer housing (810), and a handle (8521) is provided at one end of the threaded sleeve (852); A third elastic member (853) is disposed between the threaded sleeve (852) and the buffer housing (810); A limiting member (854) is disposed on the buffer housing (810); The threaded rod (851) cooperates with the threaded sleeve (852), the threaded sleeve (852) is provided with a limiting groove (855) adapted to the limiting member (854), and the threaded sleeve (852) is provided with a conical surface (856).

7. The automotive relay according to claim 6, characterized in that: The two ends of the limiting member (854) are provided with plug-in portions (857), the buffer shell (810) is provided with a groove (858) corresponding to the limiting member (854), and the buffer shell (810) is provided with a plug-in groove (859) connected to the groove (858) and adapted to the plug-in portion (857).

8. A control method for the automotive relay according to claim 7, characterized in that: The specific steps include: S1, in a normal state, the magnetic circuit part (200) is not energized, and the movable spring armature part (300) is acted upon by the first elastic member (700) so that the first static contact (510) and the movable contact (610) are in contact with each other; S2, when the magnetic circuit part (200) is energized, a magnetic force is generated, which acts on the movable spring armature part (300) through the magnetic force, causing the second static contact (520) to abut against the movable contact (610).

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