TWI841223B

TWI841223B - Relay

Info

Publication number: TWI841223B
Application number: TW112103886A
Authority: TW
Inventors: 王歡; 彭濤; 王鼎; 孫嘯; 韓浩
Original assignee: 大陸商立訊智造科技（常熟）有限公司
Priority date: 2022-12-19
Filing date: 2023-02-03
Publication date: 2024-05-01

Abstract

A relay is provided. By placing an elastic buffer block between two static contacts and between a moving contact and a top wall of a mounting seat, when the relay is in the disconnected state, the buffer block protrudes from the opposite end face of the static contact and the moving contact. Therefore, when the relay is closed and the moving contact moves in the direction close to the static contact, the buffer block is compressed to realize the buffering of the moving contact, which significantly reduces the speed of the moving contact moving near the static contact and reduces the noise generated by the collision between the moving contact and the static contact. At the same time, material sputtering during the suction can be avoided, thus delaying the corrosion aging of the moving contact and the static contact, and improving the service life of relay. In addition, when the relay is disconnected, the elastic force of the compressed buffer block can provide thrust for the separation between the moving contact and the static contact, which is helpful to reduce the release time of the relay, further reduce the phenomenon of arcing, and thus reduce the heating of the relay and the energy loss of the main loop.

Description

繼電器Relay

本發明涉及電氣設備技術領域，具體涉及一種繼電器。The present invention relates to the technical field of electrical equipment, and in particular to a relay.

直流繼電器是一種用較小的電流去控制大電流通斷的一種直流控制電器件。傳統直流繼電器的動觸點與靜觸點吸合時採用直接撞擊的接觸形式，會產生較大的閉合噪音。同時，當繼電器在大電流、高溫度的情況下工作時，動觸點和靜觸點的金屬材料會處於半熔融狀態，此時若繼電器吸合，動觸點與靜觸點之間的撞擊會導致軟化的金屬材料發生濺射和加速蒸散，導致觸點加速老化、接觸電阻上升，斷開時拉弧現象加劇，使得繼電器的壽命大大降低。A DC relay is a DC control device that uses a smaller current to control the disconnection of a large current. The moving contact and the static contact of a traditional DC relay are directly contacted when they are closed, which will produce a large closing noise. At the same time, when the relay works under high current and high temperature, the metal materials of the moving contact and the static contact will be in a semi-molten state. At this time, if the relay is closed, the collision between the moving contact and the static contact will cause the softened metal material to spatter and accelerate evaporation, resulting in accelerated aging of the contact, increased contact resistance, and more severe arcing when disconnected, which greatly reduces the life of the relay.

本發明實施例的目的在於提供一種繼電器，能夠解決或改善現有技術中存在的上述至少部分問題。The purpose of the embodiments of the present invention is to provide a relay that can solve or improve at least part of the above-mentioned problems existing in the prior art.

本發明實施例公開的繼電器包括殼體、安裝座、兩個靜觸點、動觸點和緩衝塊；安裝座設置在所述殼體內，所述安裝座具有安裝腔，所述安裝座的頂壁具有兩個間隔設置的第一觸點安裝孔；兩個靜觸點分別安裝在對應的所述第一觸點安裝孔中並且一端凸設於所述安裝腔內；動觸點可移動地設置在所述安裝腔內，並與兩個所述靜觸點相對設置；緩衝塊設置在所述安裝腔內並位於兩個所述靜觸點之間，所述緩衝塊設置在所述動觸點和所述安裝座的頂壁之間，所述緩衝塊具有彈性；其中，所述繼電器處於斷開狀態時，所述動觸點遠離所述靜觸點，所述緩衝塊突出於所述靜觸點與所述動觸點相對的一側端面；所述動觸點向靠近所述靜觸點的方向運動時，所述緩衝塊被壓縮。The relay disclosed in the embodiment of the present invention includes a housing, a mounting seat, two static contacts, a moving contact and a buffer block; the mounting seat is arranged in the housing, the mounting seat has a mounting cavity, and the top wall of the mounting seat has two first contact mounting holes arranged at intervals; the two static contacts are respectively mounted in the corresponding first contact mounting holes and one end is protruded in the mounting cavity; the moving contact is movably arranged in the mounting cavity and is opposite to the two static contacts. The buffer block is arranged in the mounting cavity and between the two static contacts, the buffer block is arranged between the dynamic contact and the top wall of the mounting seat, and the buffer block is elastic; wherein, when the relay is in a disconnected state, the dynamic contact is away from the static contact, and the buffer block protrudes from a side end surface of the static contact opposite to the dynamic contact; when the dynamic contact moves in a direction close to the static contact, the buffer block is compressed.

在一些實施例中，所述緩衝塊包括主體和凸塊；主體具有沿所述動觸點的移動方向相背設置的第一側和第二側，所述主體的第一側凹設有凹孔；凸塊設置在所述主體的所述第二側並與所述凹孔對準；其中，所述緩衝塊被配置為受到縱向擠壓時，所述凸塊向所述凹孔的方向凹陷以使得所述凸塊突出於所述第二側的高度減小。In some embodiments, the buffer block includes a main body and a protrusion; the main body has a first side and a second side arranged opposite to each other along the moving direction of the dynamic contact point, and the first side of the main body is concavely provided with a concave hole; the protrusion is arranged on the second side of the main body and aligned with the concave hole; wherein, when the buffer block is subjected to longitudinal extrusion, the protrusion is concave in the direction of the concave hole so that the height of the protrusion protruding from the second side is reduced.

在一些實施例中，所述凸塊垂直於所述動觸點的移動方向的尺寸小於所述凹孔。In some embodiments, a dimension of the protrusion perpendicular to a moving direction of the dynamic contact is smaller than that of the concave hole.

在一些實施例中，所述凸塊具有與所述主體的第一側相背設置的接觸端面，所述凹孔的深度大於或等於所述接觸端面與所述凹孔的底壁之間的距離。In some embodiments, the protrusion has a contact end surface disposed opposite to the first side of the main body, and the depth of the recessed hole is greater than or equal to the distance between the contact end surface and the bottom wall of the recessed hole.

在一些實施例中，所述凸塊的厚度被配置為使得所述凸塊完全縮入所述主體的所述第二側時，所述緩衝塊突出於所述靜觸點與達到動觸點相對的一側端面。In some embodiments, the thickness of the protrusion is configured so that when the protrusion is completely retracted into the second side of the main body, the buffer block protrudes from the end surface of the side opposite to the static contact point and reaching the dynamic contact point.

在一些實施例中，所述主體的第一側與所述動觸點相對設置，或者所述凸塊與所述動觸點相對設置。In some embodiments, the first side of the main body is disposed opposite to the dynamic contact, or the protrusion is disposed opposite to the dynamic contact.

在一些實施例中，繼電器還包括第一磁軛，第一磁軛安裝在所述安裝座的頂壁內側並設置在兩個所述第一觸點安裝孔之間，所述第一磁軛與所述動觸點間隔相對設置，所述第一磁軛與所述動觸點相對的一側具有第一安裝槽，所述第一安裝槽的形狀與所述緩衝塊相對應；其中，所述緩衝塊設置在所述第一磁軛與所述動觸點之間，所述緩衝塊與所述第一安裝槽連接。In some embodiments, the relay further includes a first magnetic yoke, which is mounted on the inner side of the top wall of the mounting base and arranged between the two first contact mounting holes, the first magnetic yoke and the moving contact are arranged opposite to each other, and the first magnetic yoke has a first mounting groove on the side opposite to the moving contact, and the shape of the first mounting groove corresponds to the buffer block; wherein the buffer block is arranged between the first magnetic yoke and the moving contact, and the buffer block is connected to the first mounting groove.

在一些實施例中，繼電器還包括第二磁軛，設置在所述動觸點背向所述第一磁軛的一側。In some embodiments, the relay further includes a second magnetic yoke disposed on a side of the dynamic contact facing away from the first magnetic yoke.

在一些實施例中，繼電器還包括屏蔽罩，屏蔽罩設置在所述安裝腔內，所述屏蔽罩具有兩個與所述第一觸點安裝孔一一對應的第二觸點安裝孔，所述屏蔽罩的內側具有第二安裝槽，所述第二安裝槽設置在兩個所述第二觸點安裝孔之間，所述第二安裝槽的形狀與所述緩衝塊相對應；其中，所述緩衝塊安裝在所述第二安裝槽內，所述靜觸點還穿設於對應的所述第二觸點安裝孔。In some embodiments, the relay further includes a shielding cover, which is arranged in the mounting cavity, and the shielding cover has two second contact mounting holes corresponding to the first contact mounting holes one by one, and the inner side of the shielding cover has a second mounting groove, and the second mounting groove is arranged between the two second contact mounting holes, and the shape of the second mounting groove corresponds to the buffer block; wherein the buffer block is installed in the second mounting groove, and the static contact is also penetrated through the corresponding second contact mounting hole.

在一些實施例中，所述緩衝塊的厚度被配置為在處於彈性壓縮極限狀態下，所述緩衝塊凹於所述靜觸點與所述動觸點相對的一側端面。In some embodiments, the thickness of the buffer block is configured such that, in an elastic compression limit state, the buffer block is recessed at a side end surface opposite to the static contact point and the dynamic contact point.

在一些實施例中，所述繼電器還包括推桿、彈簧定位座、觸頭彈簧和限位件；推桿與所述動觸點連接，並可移動地設置於所述殼體內；彈簧定位座與所述推桿連接；觸頭彈簧平行於所述動觸點的運動方向設置，所述觸頭彈簧的一端與所述動觸點連接，另一端與所述彈簧定位座連接；限位件具有頂板和設置在所述頂板的兩端的兩個側板，所述頂板設置在所述動觸點與所述安裝座的頂壁之間，兩個所述側板分別設置在所述動觸點的兩側並延伸至所述彈簧定位座；其中，所述緩衝塊設置在所述頂板上。In some embodiments, the relay further includes a push rod, a spring positioning seat, a contact spring and a limit piece; the push rod is connected to the moving contact and is movably arranged in the housing; the spring positioning seat is connected to the push rod; the contact spring is arranged parallel to the movement direction of the moving contact, one end of the contact spring is connected to the moving contact, and the other end is connected to the spring positioning seat; the limit piece has a top plate and two side plates arranged at both ends of the top plate, the top plate is arranged between the moving contact and the top wall of the mounting seat, and the two side plates are respectively arranged on both sides of the moving contact and extend to the spring positioning seat; wherein the buffer block is arranged on the top plate.

在一些實施例中，所述緩衝塊垂直於所述動觸點的運動方向的截面的形狀相同或不同。In some embodiments, the shapes of the cross sections of the buffer blocks perpendicular to the movement direction of the dynamic contact points are the same or different.

在一些實施例中，所述緩衝塊具有沿平行於所述動觸點的運動方向的非線性壓縮特性。In some embodiments, the buffer block has a nonlinear compression characteristic along a movement direction parallel to the dynamic contact point.

本發明實施例提供了一種繼電器，通過將具有彈性的緩衝塊設置在兩個靜觸點之間並位於動觸點和安裝座的頂壁之間，繼電器處於斷開狀態時，緩衝塊突出於靜觸點與動觸點相對的一側端面。由此，當繼電器閉合、動觸點向靠近靜觸點的方向運動時，緩衝塊被壓縮，從而實現對動觸點的緩衝，使得動觸點運動到靜觸點附近時的速度顯著降低，動觸點與靜觸點碰撞產生的噪音；同時可以避免動觸點和靜觸點發生材料濺射，降低材料蒸散速率，從而延緩觸點熔蝕老化，有利於提升繼電器的使用壽命；此外，在繼電器斷開時，被壓縮的緩衝塊的彈力能夠為動觸點與靜觸點之間的分離提供推力，有助於降低繼電器的釋放時間，提高繼電器的分斷可靠性，進一步改善繼電器分斷拉弧現象，從而降低繼電器的發熱和主迴路能量損耗。The embodiment of the present invention provides a relay, wherein a buffer block with elasticity is arranged between two static contacts and between a dynamic contact and a top wall of a mounting seat. When the relay is in a disconnected state, the buffer block protrudes from a side end surface opposite to the static contact and the dynamic contact. Therefore, when the relay is closed and the moving contact moves toward the static contact, the buffer block is compressed, thereby achieving buffering of the moving contact, which significantly reduces the speed of the moving contact when it moves near the static contact, and reduces the noise generated by the collision between the moving contact and the static contact; at the same time, it can avoid material splashing between the moving contact and the static contact, reduce the material evaporation rate, and thus delay the contact melting. In addition, when the relay is disconnected, the elastic force of the compressed buffer block can provide thrust for the separation between the moving contact and the static contact, which helps to reduce the release time of the relay, improve the disconnection reliability of the relay, and further improve the relay disconnection arcing phenomenon, thereby reducing the heat generation of the relay and the energy loss of the main circuit.

以下基於實施例對本發明進行描述，但是本發明並不僅僅限於這些實施例。在下文對本發明的細節描述中，詳盡描述了一些特定的細節部分。對本領域具有通常知識者來說沒有這些細節部分的描述也可以完全理解本發明。為了避免混淆本發明的實質，公知的方法、過程、流程、元件和電路並沒有詳細敘述。The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. For those with ordinary knowledge in the art, the present invention can be fully understood without the description of these details. In order to avoid confusing the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

此外，本領域普通具有通常知識者應當理解，在此提供的圖式都是為了說明的目的，並且圖式不一定是按比例繪製的。Furthermore, one of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

除非上下文明確要求，否則在說明書的“包括”、“包含”等類似詞語應當解釋為包含的含義而不是排他或窮舉的含義；也就是說，是“包括但不限於”的含義。Unless the context clearly requires otherwise, the words "include", "including" and similar words in the specification should be interpreted as inclusive rather than exclusive or exhaustive; that is, the meaning of "including but not limited to".

在本發明的描述中，需要理解的是，術語“第一”、“第二”等僅用於描述目的，而不能理解為指示或暗示相對重要性。此外，在本發明的描述中，除非另有說明，“多個”的含義是兩個或兩個以上。In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

當一元件或層被提及為在另一元件或層“上”、“被接合到”、“被連接到”或“被聯接到”另一元件或層時，其可直接在另一元件或層上、被直接接合、連接或聯接到另一元件或層，或者可存在中間元件或層。如在此使用的，術語“和/或”包括一個或更多關聯的所列項目中的任一或全部組合。When an element or layer is referred to as being "on," "engaged to," "connected to," or "coupled to" another element or layer, it may be directly on, directly engaged, connected to, or coupled to the other element or layer, or intervening elements or layers may be present. As used herein, the term "and/or" includes any or all combinations of one or more of the associated listed items.

圖1至圖3是本發明一個實施例的繼電器的結構示意圖，圖4是圖3中的A處局部放大示意圖。如圖1至圖4所示，本發明實施例的繼電器包括殼體1、安裝座2、兩個靜觸點3、動觸點4和推桿5，其中，安裝座2、動觸點4和推桿5設置在殼體1內。參照圖1和圖2，靜觸點3的一端設置在殼體1內，另一端露出於殼體1的外表面，以便於接入外部電路。Fig. 1 to Fig. 3 are schematic diagrams of the structure of a relay of an embodiment of the present invention, and Fig. 4 is a partial enlarged schematic diagram of A in Fig. 3. As shown in Fig. 1 to Fig. 4, the relay of the embodiment of the present invention includes a housing 1, a mounting seat 2, two static contacts 3, a moving contact 4 and a push rod 5, wherein the mounting seat 2, the moving contact 4 and the push rod 5 are arranged in the housing 1. Referring to Fig. 1 and Fig. 2, one end of the static contact 3 is arranged in the housing 1, and the other end is exposed on the outer surface of the housing 1, so as to facilitate access to an external circuit.

安裝座2採用絕緣材料製成，可選地，安裝座2可以採用陶瓷材料，陶瓷材料可以起到高壓絕緣的作用，避免繼電器的靜觸點3等元件受到高壓的影響而損壞。參照圖2和圖3，安裝座2具有安裝腔，安裝座2的下部敞開，由此安裝座2形成半殼結構。安裝座2的頂壁具有兩個間隔設置的第一觸點安裝孔21，兩個靜觸點3分別安裝在對應的第一觸點安裝孔21中，且靜觸點3的下端露出於安裝腔內。The mounting base 2 is made of insulating material. Optionally, the mounting base 2 can be made of ceramic material. The ceramic material can play a role of high-voltage insulation to prevent the static contact 3 and other components of the relay from being damaged by the high voltage. Referring to Figures 2 and 3, the mounting base 2 has a mounting cavity, and the lower part of the mounting base 2 is open, so that the mounting base 2 forms a half-shell structure. The top wall of the mounting base 2 has two first contact mounting holes 21 arranged at intervals, and the two static contacts 3 are respectively installed in the corresponding first contact mounting holes 21, and the lower ends of the static contacts 3 are exposed in the mounting cavity.

動觸點4可移動地設置在安裝腔內，設置在靜觸點3的下方並與兩個靜觸點3相對設置。推桿5與動觸點4直接或間接地連接，並可移動地設置於殼體1內。推桿5能夠沿垂直於靜觸點3的方向移動，由此可以帶動動觸點4相對於靜觸點3進行直線運動，以使動觸點4與兩個靜觸點3相接觸或相分離。The movable contact 4 is movably disposed in the mounting cavity, disposed below the static contacts 3 and disposed opposite to the two static contacts 3. The push rod 5 is directly or indirectly connected to the movable contact 4 and movably disposed in the housing 1. The push rod 5 can move in a direction perpendicular to the static contacts 3, thereby driving the movable contact 4 to perform a linear motion relative to the static contacts 3, so that the movable contact 4 is in contact with or separated from the two static contacts 3.

在一些實施例中，參照圖2至圖5，繼電器還包括觸頭彈簧50和彈簧定位座70。彈簧定位座70與推桿5靠近靜觸點3的一端連接，觸頭彈簧50沿動觸點4的移動方向設置，觸頭彈簧50的一端與彈簧定位座70連接，另一端與動觸點4連接，也即，觸頭彈簧50抵接在動觸點4與彈簧定位座70之間。通過設置觸頭彈簧50，使得動觸點4與靜觸點3接觸時能夠實現緩衝減震的效果。繼電器還包括限位件80，限位件80連接動觸點4與彈簧定位座70，用於限制動觸點4與彈簧定位座70之間的相對位置，以避免彈簧定位座70、觸頭彈簧50和動觸點4之間相分離或發生錯位。本實施例不限制限位件80的具體形式，限位件80的形式與彈簧定位座70和動觸點4的結構相匹配。在一種實施方式中，限位件80為類似於“匚”形的扣件，限位件80具有頂板801和兩個側板802，兩個側板802分別設置在頂板801的兩端並分別向下延伸，頂板801從上方橫跨在動觸點4上、設置在動觸點4與安裝座2的頂壁並避讓開靜觸點3，兩個側板802分別設置在動觸點4的兩側。側板802的下端與彈簧定位座70連接，例如可以通過對應的卡扣和卡孔結構連接。由此，限位件80可以限制動觸點4與彈簧定位座70之間的相對位置。In some embodiments, referring to FIGS. 2 to 5 , the relay further includes a contact spring 50 and a spring positioning seat 70. The spring positioning seat 70 is connected to one end of the push rod 5 close to the static contact 3, and the contact spring 50 is arranged along the moving direction of the dynamic contact 4. One end of the contact spring 50 is connected to the spring positioning seat 70, and the other end is connected to the dynamic contact 4, that is, the contact spring 50 abuts between the dynamic contact 4 and the spring positioning seat 70. By arranging the contact spring 50, the dynamic contact 4 can achieve a shock absorbing effect when contacting the static contact 3. The relay further includes a limiter 80, which connects the movable contact 4 and the spring positioning seat 70 and is used to limit the relative position between the movable contact 4 and the spring positioning seat 70 to prevent the spring positioning seat 70, the contact spring 50 and the movable contact 4 from being separated or misaligned. The specific form of the limiter 80 is not limited in this embodiment, and the form of the limiter 80 matches the structure of the spring positioning seat 70 and the movable contact 4. In one embodiment, the stopper 80 is a fastener similar to a "匚" shape, and the stopper 80 has a top plate 801 and two side plates 802, the two side plates 802 are respectively arranged at the two ends of the top plate 801 and extend downward respectively, the top plate 801 crosses the moving contact 4 from above, is arranged on the top wall of the moving contact 4 and the mounting seat 2 and avoids the static contact 3, and the two side plates 802 are respectively arranged on the two sides of the moving contact 4. The lower end of the side plate 802 is connected to the spring positioning seat 70, for example, it can be connected through a corresponding buckle and a clamping hole structure. In this way, the stopper 80 can limit the relative position between the moving contact 4 and the spring positioning seat 70.

在一些實施例中，參照圖2和圖3，繼電器還包括靜鐵芯9、動鐵芯10和線圈30，靜鐵芯9在殼體1中的位置相對固定，動鐵芯10與靜鐵芯9相對設置並且能夠相對於靜鐵芯9運動，動鐵芯10可以設置在靜鐵芯9的下方。動鐵芯10與推桿5的下端連接固定，推桿5的上端穿過靜鐵芯9並向上延伸與動觸點4連接，動鐵芯10運動時可以通過推桿5帶動動觸點4運動。線圈30設置在動鐵芯10的外周並與動鐵芯10之間保持一定的間隙。繼電器採用電磁方式驅動，通過對線圈30通直流電產生磁場，使得動鐵芯10和靜鐵芯9被磁化，動鐵芯10與靜鐵芯9相對的一端以及靜鐵芯9與動鐵芯10相對的一端具有相異的磁極，由此在磁力的驅動下，動鐵芯10向靠近靜鐵芯9的方向運動，並通過推桿5帶動動觸點4向靠近靜觸點3的方向運動並最終使動觸點4與兩個靜觸點3接觸，使兩個靜觸點3被導通。靜鐵芯9的位置還被設置為能夠對動鐵芯10的行程進行限制，以避免繼電器吸合時動鐵芯10的行程過長而使動觸點4與靜觸點3之間產生較大的撞擊。In some embodiments, referring to FIG. 2 and FIG. 3 , the relay further includes a static iron core 9, a moving iron core 10 and a coil 30. The static iron core 9 is relatively fixed in the housing 1. The moving iron core 10 is arranged opposite to the static iron core 9 and can move relative to the static iron core 9. The moving iron core 10 can be arranged below the static iron core 9. The moving iron core 10 is connected and fixed to the lower end of the push rod 5. The upper end of the push rod 5 passes through the static iron core 9 and extends upward to connect with the moving contact 4. When the moving iron core 10 moves, the moving contact 4 can be driven to move by the push rod 5. The coil 30 is arranged on the periphery of the moving iron core 10 and maintains a certain gap with the moving iron core 10. The relay is driven by electromagnetic means. A magnetic field is generated by passing direct current through the coil 30, so that the moving iron core 10 and the static iron core 9 are magnetized. The ends of the moving iron core 10 opposite to the static iron core 9 and the ends of the static iron core 9 opposite to the moving iron core 10 have different magnetic poles. Therefore, driven by the magnetic force, the moving iron core 10 moves toward the static iron core 9, and drives the moving contact 4 to move toward the static contact 3 through the push rod 5 and finally makes the moving contact 4 contact with the two static contacts 3, so that the two static contacts 3 are turned on. The position of the static iron core 9 is also set to limit the stroke of the moving iron core 10 to avoid excessive stroke of the moving iron core 10 when the relay is closed, thereby preventing a large impact between the moving contact 4 and the static contact 3.

在一些實施例中，參照圖2和圖3，繼電器還可以包括反力彈簧20。靜鐵芯9具有第一容置槽，第一容置槽的開口設在靜鐵芯9靠近動鐵芯10一端。反力彈簧20套設在推桿5外並且一端設置在第一容置槽中，另一端延伸至動鐵芯10的端面。可選地，動鐵芯10還可以具有第二容置槽（未圖示），第二容置槽的開口設置動鐵芯10靠近靜鐵芯9的一端，反力彈簧20的另一端設置在該第二容置槽中。在動觸點4與靜觸點3吸合的過程中，反力彈簧20被壓縮，反力彈簧20對動鐵芯10的反作用力能夠使動鐵芯10、推桿5和動觸點4的運動速度降低，從而減小動觸點4與靜觸點3之間的撞擊力；而在繼電器斷開釋放過程中，反力彈簧20對動鐵芯10施加的作用力能夠推動動鐵芯10與靜鐵芯9分離，有助於動觸點4與靜觸點3的分斷，縮短繼電器的釋放時間。In some embodiments, referring to FIG. 2 and FIG. 3 , the relay may further include a reaction spring 20. The static iron core 9 has a first accommodating groove, and the opening of the first accommodating groove is arranged at one end of the static iron core 9 close to the moving iron core 10. The reaction spring 20 is sleeved outside the push rod 5 and one end is arranged in the first accommodating groove, and the other end extends to the end surface of the moving iron core 10. Optionally, the moving iron core 10 may also have a second accommodating groove (not shown), the opening of the second accommodating groove is arranged at one end of the moving iron core 10 close to the static iron core 9, and the other end of the reaction spring 20 is arranged in the second accommodating groove. During the process of the moving contact 4 and the static contact 3 being attracted, the reaction spring 20 is compressed, and the reaction force of the reaction spring 20 on the moving iron core 10 can reduce the movement speed of the moving iron core 10, the push rod 5 and the moving contact 4, thereby reducing the impact force between the moving contact 4 and the static contact 3; and during the process of disconnecting and releasing the relay, the force applied by the reaction spring 20 to the moving iron core 10 can push the moving iron core 10 to separate from the static iron core 9, which is helpful for the disconnection of the moving contact 4 and the static contact 3 and shortens the release time of the relay.

在一些實施例中，繼電器還可以包括設置在殼體1內並設置安裝座2外的磁鋼40。例如，參照圖2和圖3，磁鋼40可以包括兩個，兩個磁鋼40對稱地設置在安裝座2的兩側，兩個靜觸點3和動觸點4均設置在兩個磁鋼40之間。兩個磁鋼40的其中一個的N極正對另一個磁鋼40的S極，兩個磁鋼40之間形成磁場，在靜觸點3與動觸點4分離時，動觸點4和靜觸點3之間產生的電弧受到該磁場的影響而被拉長，實現滅弧的效果。In some embodiments, the relay may further include a magnetic steel 40 disposed in the housing 1 and outside the mounting base 2. For example, referring to FIG. 2 and FIG. 3, the magnetic steel 40 may include two, the two magnetic steels 40 are symmetrically disposed on both sides of the mounting base 2, and the two static contacts 3 and the moving contact 4 are disposed between the two magnetic steels 40. The N pole of one of the two magnetic steels 40 faces the S pole of the other magnetic steel 40, and a magnetic field is formed between the two magnetic steels 40. When the static contact 3 is separated from the moving contact 4, the arc generated between the moving contact 4 and the static contact 3 is elongated by the influence of the magnetic field, thereby achieving the effect of arc extinguishing.

在本實施例中，參照圖2至圖4，繼電器還包括緩衝塊6，緩衝塊6設置在安裝腔內並位於兩個靜觸點3之間。同時，緩衝塊6的位置處於動觸點4和安裝座2的頂壁之間，當繼電器處於斷開狀態時，動觸點4遠離靜觸點3，緩衝塊6突出於所述靜觸點3與所述動觸點4相對的一側端面。緩衝塊6具有一定的彈性，並且根據繼電器的工作溫度具有較佳的耐熱性，可選地，緩衝塊6可以採用橡膠複合材料或者其他彈性符合材料製成。當動觸點4被推桿5帶動而向靠近靜觸點3的方向運動時，緩衝塊6受到擠壓而被壓縮，由此可以在動觸點4與靜觸點3閉合接觸的過程中起到緩衝作用，減緩動觸點4向靜觸點3接近的速度，降低閉合時產生的衝擊噪音，同時能夠避免動觸點4和靜觸點3由於撞擊發生材料濺射，大大降低材料蒸散速率，從而延緩觸點熔蝕老化，提高繼電器的可靠性。而在動觸點4與靜觸點3的分斷過程中，被壓縮的緩衝塊6的彈力能夠推動動觸點4向遠離靜觸點3的方向運動，有助於縮短繼電器的釋放時間、提高繼電器的分斷可靠性，進一步改善繼電器分斷時產生的拉弧現象，從而降低繼電器的發熱和主迴路能量損耗。In this embodiment, referring to Fig. 2 to Fig. 4, the relay further includes a buffer block 6, which is disposed in the mounting cavity and between the two static contacts 3. At the same time, the buffer block 6 is located between the moving contact 4 and the top wall of the mounting seat 2. When the relay is in the disconnected state, the moving contact 4 is away from the static contact 3, and the buffer block 6 protrudes from the side end surface of the static contact 3 opposite to the moving contact 4. The buffer block 6 has a certain elasticity and has good heat resistance according to the working temperature of the relay. Optionally, the buffer block 6 can be made of rubber composite material or other elastic composite materials. When the moving contact 4 is driven by the push rod 5 to move in the direction close to the static contact 3, the buffer block 6 is squeezed and compressed, thereby playing a buffering role in the process of the moving contact 4 and the static contact 3 being closed and contacted, slowing down the speed of the moving contact 4 approaching the static contact 3, reducing the impact noise generated during closing, and at the same time avoiding material splashing due to collision between the moving contact 4 and the static contact 3, greatly reducing the material evaporation rate, thereby delaying contact corrosion aging and improving the reliability of the relay. During the disconnection process between the moving contact 4 and the static contact 3, the elastic force of the compressed buffer block 6 can push the moving contact 4 to move away from the static contact 3, which helps to shorten the release time of the relay, improve the disconnection reliability of the relay, and further improve the arcing phenomenon generated when the relay is disconnected, thereby reducing the heating of the relay and the energy loss of the main circuit.

緩衝塊6的具體位置可以根據需要進行選擇。緩衝塊6的上端可以與安裝座2的頂壁直接接觸；或者，緩衝塊6也可以與連接於安裝座2的頂壁並與設置在安裝座2的頂壁和動觸點4之間的其他部件相接觸。類似地，緩衝塊6的下端可以與動觸點4直接接觸；或者，緩衝塊6也可以與連接於動觸點4並設置在安裝座2的頂壁和動觸點4之間的其他結構相接觸。在一個實施例中，參照圖4，當動觸點4通過圖5中類似於“匚”形的限位件80與彈簧定位座70連接時，緩衝塊6可以設置在限位件80的頂板801上並與頂板接觸。由於限位件80與彈簧定位座70的連接結構具有一定的剛性，當動觸點4向靠近靜觸點3的方向移動且尚未接觸到靜觸點3時，緩衝塊6先被壓縮而對限位件80、彈簧定位座70、推桿5和動鐵芯10進行緩衝，進而降低動觸點4的運動速度；然後，當動觸點4與靜觸點3剛發生接觸時，緩衝塊6繼續被壓縮而對限位件80、彈簧定位座70、推桿5、動鐵芯10和動觸點4進行緩衝，同時觸頭彈簧50也被壓縮而使動觸點4與靜觸點3之間的撞擊力進一步減小，有利於進一步降低閉合時的噪音以及保證動觸點4和靜觸點3的壽命。The specific position of the buffer block 6 can be selected as needed. The upper end of the buffer block 6 can directly contact the top wall of the mounting seat 2; or, the buffer block 6 can also contact other components connected to the top wall of the mounting seat 2 and arranged between the top wall of the mounting seat 2 and the dynamic contact 4. Similarly, the lower end of the buffer block 6 can directly contact the dynamic contact 4; or, the buffer block 6 can also contact other structures connected to the dynamic contact 4 and arranged between the top wall of the mounting seat 2 and the dynamic contact 4. In one embodiment, referring to FIG. 4 , when the moving contact 4 is connected to the spring positioning seat 70 through the stopper 80 similar to the “匚” shape in FIG. 5 , the buffer block 6 can be disposed on the top plate 801 of the stopper 80 and in contact with the top plate. Since the connection structure between the stopper 80 and the spring positioning seat 70 has a certain rigidity, when the moving contact 4 moves toward the direction close to the static contact 3 and has not yet contacted the static contact 3, the buffer block 6 is first compressed to buffer the stopper 80, the spring positioning seat 70, the push rod 5 and the moving iron core 10, thereby reducing the movement speed of the moving contact 4; then, when the moving contact 4 is in contact with the static contact 3, the buffer block 6 is compressed to buffer the stopper 80, the spring positioning seat 70, the push rod 5 and the moving iron core 10, thereby reducing the movement speed of the moving contact 4; then, when the moving contact 4 is in contact with the static contact 3, the buffer block 6 is compressed to buffer the stopper 80, the spring positioning seat 70, the push rod 5 and the moving iron core 10, thereby reducing the movement speed of the moving contact 4; then, when the moving contact 4 is in contact with the static contact 3, the buffer block 6 is compressed to buffer the moving contact 4. When the contact 3 just makes contact, the buffer block 6 continues to be compressed to buffer the limiter 80, the spring positioning seat 70, the push rod 5, the moving iron core 10 and the moving contact 4. At the same time, the contact spring 50 is also compressed to further reduce the impact force between the moving contact 4 and the static contact 3, which is beneficial to further reduce the noise during closing and ensure the life of the moving contact 4 and the static contact 3.

在一個實施例中，參照圖2至圖4，繼電器還包括第一磁軛7，第一磁軛7安裝在安裝座2的頂壁內側並設置在兩個第一觸點安裝孔21之間，第一磁軛7與靜觸點3之間具有間隙。第一磁軛7可以採用軟磁性材料製成，並且與動觸點4間隔相對設置。繼電器還可以包括第二磁軛60，第二磁軛60與動觸點4連接，例如可以固定在動觸點4背向靜觸點3和第一磁軛7的一側。當動觸點4與兩個靜觸點3接觸而將兩個靜觸點3導通時，在動觸點4周圍產生磁場，第一磁軛7和第二磁軛60被磁化，第一磁軛7和第二磁軛60之間互相吸引，使得動觸點4能夠穩定地與靜觸點3接觸。在本實施例中，緩衝塊6設置在第一磁軛7與動觸點4之間，既能緩衝動觸點4與靜觸點3吸合時的震動，又能夠保證動觸點4與靜觸點3接觸的穩定性。在另一個實施例中，參照圖6，第一磁軛7與所述動觸點4相對的一側具有第一安裝槽71，緩衝塊6安裝在第一安裝槽71中。In one embodiment, referring to Fig. 2 to Fig. 4, the relay further comprises a first magnetic yoke 7, which is mounted on the inner side of the top wall of the mounting seat 2 and disposed between the two first contact mounting holes 21, and a gap is provided between the first magnetic yoke 7 and the static contact 3. The first magnetic yoke 7 can be made of a soft magnetic material and is disposed opposite to the moving contact 4 at a distance. The relay can also comprise a second magnetic yoke 60, which is connected to the moving contact 4, for example, it can be fixed on a side of the moving contact 4 facing away from the static contact 3 and the first magnetic yoke 7. When the moving contact 4 contacts the two static contacts 3 and the two static contacts 3 are turned on, a magnetic field is generated around the moving contact 4, the first magnetic yoke 7 and the second magnetic yoke 60 are magnetized, and the first magnetic yoke 7 and the second magnetic yoke 60 attract each other, so that the moving contact 4 can stably contact the static contact 3. In this embodiment, the buffer block 6 is arranged between the first magnetic yoke 7 and the moving contact 4, which can not only buffer the vibration when the moving contact 4 and the static contact 3 are attracted, but also ensure the stability of the contact between the moving contact 4 and the static contact 3. In another embodiment, referring to FIG. 6 , the first magnetic yoke 7 has a first mounting groove 71 on a side opposite to the moving contact 4, and the buffer block 6 is mounted in the first mounting groove 71.

在另一個實施例中，參照圖7至圖10，繼電器還包括屏蔽罩8，屏蔽罩8設置在安裝腔內，屏蔽罩8具有兩個第二觸點安裝孔81，第二觸點安裝孔81與安裝座2上的第一觸點安裝孔21一一對應。屏蔽罩8的形狀與安裝座2的形狀相匹配。兩個靜觸點3還分別穿設於對應的第二觸點安裝孔81並伸入屏蔽罩8的內側，動觸點4也設置在屏蔽罩8的內側。通過設置屏蔽罩8可以對外部的磁場起到隔離作用，避免外部磁場對繼電器的工作產生干擾而使動觸點4發生誤動作，保證繼電器工作的穩定性。在本實施例中，參照圖10，屏蔽罩8的內側具有第二安裝槽82，第二安裝槽82設置在兩個第二觸點安裝孔81之間，緩衝塊6安裝在第二安裝槽82內。In another embodiment, referring to Fig. 7 to Fig. 10, the relay further comprises a shielding cover 8, which is arranged in the mounting cavity, and has two second contact mounting holes 81, and the second contact mounting holes 81 correspond to the first contact mounting holes 21 on the mounting seat 2. The shape of the shielding cover 8 matches the shape of the mounting seat 2. The two static contacts 3 are also respectively penetrated through the corresponding second contact mounting holes 81 and extend into the inner side of the shielding cover 8, and the moving contact 4 is also arranged on the inner side of the shielding cover 8. By setting the shielding cover 8, an isolation effect can be played on the external magnetic field, so as to avoid the external magnetic field from interfering with the operation of the relay and causing the moving contact 4 to malfunction, thereby ensuring the stability of the operation of the relay. In this embodiment, referring to FIG. 10 , the inner side of the shielding cover 8 has a second mounting groove 82 , the second mounting groove 82 is disposed between the two second contact mounting holes 81 , and the buffer block 6 is mounted in the second mounting groove 82 .

緩衝塊6的形狀可以根據繼電器中的其他相應結構的形狀進行設計，以滿足繼電器裝配和使用的需求，例如，緩衝塊6可以是柱狀、棱臺狀、圓臺狀或者其他形狀。緩衝塊6垂直於動觸點4的運動方向的截面的形狀可以相同或者不同。也就是說，緩衝塊6可以沿平行於動觸點4的運動方向具有均勻的粗細，或者緩衝塊6可以為變截面立體結構。The shape of the buffer block 6 can be designed according to the shapes of other corresponding structures in the relay to meet the requirements of relay assembly and use. For example, the buffer block 6 can be columnar, prism-shaped, frustum-shaped or other shapes. The shapes of the cross sections of the buffer block 6 perpendicular to the movement direction of the moving contact 4 can be the same or different. In other words, the buffer block 6 can have a uniform thickness along the movement direction parallel to the moving contact 4, or the buffer block 6 can be a variable cross-section three-dimensional structure.

在一些實施例中，參照圖11，緩衝塊6基本呈棱柱狀，例如可以基本呈長方體形狀。緩衝塊6的尺寸以及安裝的位置被配置為使得緩衝塊6在被沿縱向擠壓達到彈性壓縮極限的狀態時，緩衝塊6凹於靜觸點3與動觸點4相對的一側端面，也即，當動觸點4與靜觸點3接觸時，緩衝塊6尚未達到彈性壓縮極限，由此可以避免緩衝塊6被過度壓縮而失效。In some embodiments, referring to FIG. 11 , the buffer block 6 is substantially prismatic, for example, substantially rectangular. The size and installation position of the buffer block 6 are configured such that when the buffer block 6 is squeezed in the longitudinal direction to reach the elastic compression limit, the buffer block 6 is recessed in the side end surface opposite to the static contact 3 and the dynamic contact 4, that is, when the dynamic contact 4 contacts the static contact 3, the buffer block 6 has not yet reached the elastic compression limit, thereby preventing the buffer block 6 from being over-compressed and failing.

在另一些實施例中，參照圖2至圖4以及圖7至圖15，緩衝塊6包括縱向堆疊設置的主體61和凸塊62，主體61具有沿動觸點4的移動方向相背設置的第一側和第二側。其中，主體61的第一側凹設有凹孔611，凸塊62設置在主體61的第二側且與凹孔611的位置對準。凸塊62具有與主體61的第一側相背設置的接觸端面621，凸塊62的尺寸小於凹孔611。優選地，主體61和凸塊62一體形成。對比圖9和圖13，在動觸點4與靜觸點3吸合的過程中，緩衝塊6受到縱向的擠壓，緩衝塊6產生形變，凸塊62能夠逐漸陷入主體61（如圖13所示），凹孔611的底部逐漸向凹孔611的開口處***，凸塊62突出於主體61的第二側的高度逐漸減小，在此過程中凸塊62可以對動觸點4的吸合起到緩衝作用，而主體61的第二側基本未受到擠壓。優選地，凹孔611的深度大於或等於接觸端面621與凹孔611的底壁之間的距離，使得凸塊62縮入主體61能夠達到接觸端面621與第二側的端面相平齊的狀態。In other embodiments, referring to FIGS. 2 to 4 and 7 to 15 , the buffer block 6 includes a main body 61 and a convex block 62 stacked longitudinally, and the main body 61 has a first side and a second side disposed opposite to each other along the moving direction of the dynamic contact 4. The first side of the main body 61 is concavely provided with a concave hole 611, and the convex block 62 is disposed on the second side of the main body 61 and aligned with the position of the concave hole 611. The convex block 62 has a contact end face 621 disposed opposite to the first side of the main body 61, and the size of the convex block 62 is smaller than the concave hole 611. Preferably, the main body 61 and the convex block 62 are formed integrally. Comparing Figures 9 and 13, during the process of the dynamic contact 4 and the static contact 3 being attracted, the buffer block 6 is squeezed longitudinally, the buffer block 6 is deformed, the protrusion 62 can gradually sink into the main body 61 (as shown in Figure 13), the bottom of the recessed hole 611 gradually bulges toward the opening of the recessed hole 611, and the height of the protrusion 62 protruding from the second side of the main body 61 gradually decreases. In this process, the protrusion 62 can play a buffering role in the attraction of the dynamic contact 4, and the second side of the main body 61 is basically not squeezed. Preferably, the depth of the recessed hole 611 is greater than or equal to the distance between the contact end surface 621 and the bottom wall of the recessed hole 611, so that the protrusion 62 can be retracted into the main body 61 to achieve a state in which the contact end surface 621 is flush with the end surface of the second side.

進一步地，緩衝塊6的厚度以及安裝的位置被配置為使得凸塊62的接觸端面621恰好與第二側的端面相平齊時（或者說，凸塊62完全縮入主體61的第二側時），緩衝塊6仍突出於靜觸點3與動觸點4相對的一側端面，也即此時動觸點4尚未與靜觸點3接觸；在動觸點4繼續向靠近靜觸點3的方向移動時，主體61的第一側和第二側受到相向的擠壓力，使主體61被壓縮（參照圖14），由此能夠對動觸點4的吸合起到進一步的緩衝作用。通過這種設計，緩衝塊6具有非線性壓縮彈性，使得再動觸點4吸合的過程中，緩衝塊6能夠由於自身的結構（凸塊62能夠縮入主體61中）實現初步緩衝，然後主體61自身的材料的彈性壓縮實現二次緩衝，實現非線性的兩段減震緩衝效果。且由於主體61受擠壓的受力面積大於凸塊62與主體61連接處的截面面積，因此在主體61壓縮的二次緩衝過程中能夠起到比初步緩衝中更強的緩衝效果，以使得動觸點4與靜觸點3接觸時的撞擊力能夠進一步地減緩。緩衝塊6的安裝方向可以根據需要選擇將主體61與動觸點4相對而凸塊62與安裝座2的頂壁相對（參照圖2至圖4、圖7至圖9），或者將主體61與動觸點4相對而凸塊62與安裝座2的頂壁相對（參照圖15）。Furthermore, the thickness and installation position of the buffer block 6 are configured so that when the contact end face 621 of the protrusion 62 is exactly flush with the end face of the second side (or, when the protrusion 62 is completely retracted into the second side of the main body 61), the buffer block 6 still protrudes from the end face of the side opposite to the static contact 3 and the dynamic contact 4, that is, at this time the dynamic contact 4 has not yet contacted the static contact 3; when the dynamic contact 4 continues to move in the direction close to the static contact 3, the first side and the second side of the main body 61 are subjected to opposite extrusion pressures, so that the main body 61 is compressed (refer to Figure 14), thereby being able to play a further buffering role in the attraction of the dynamic contact 4. Through this design, the buffer block 6 has nonlinear compression elasticity, so that during the process of the dynamic contact 4 being attracted, the buffer block 6 can achieve initial buffering due to its own structure (the protrusion 62 can be retracted into the main body 61), and then the elastic compression of the material of the main body 61 itself achieves secondary buffering, thereby achieving a nonlinear two-stage shock-absorbing and buffering effect. Since the force bearing area of the main body 61 under compression is larger than the cross-sectional area of the connection between the convex block 62 and the main body 61, a stronger buffering effect can be achieved in the secondary buffering process of the compression of the main body 61 than in the initial buffering, so that the impact force when the dynamic contact 4 contacts the static contact 3 can be further reduced. The installation direction of the buffer block 6 can be selected as needed to make the main body 61 opposite to the dynamic contact 4 and the convex block 62 opposite to the top wall of the mounting seat 2 (refer to Figures 2 to 4, Figures 7 to 9), or to make the main body 61 opposite to the dynamic contact 4 and the convex block 62 opposite to the top wall of the mounting seat 2 (refer to Figure 15).

可以理解的是，緩衝塊6也可以通過設置為其他結構使其具有沿平行於動觸點4的運動方向的非線性壓縮特性。該非線性壓縮特性具體表現為：在沿平行於動觸點4的運動方向的方向上，緩衝塊6在被壓縮的過程中，其受到的擠壓力與產生的形變量為非線性關係，由此可以對動觸點4實現多段緩衝效果，保證繼電器工作的可靠性。It is understandable that the buffer block 6 can also be set as other structures to have nonlinear compression characteristics along the movement direction parallel to the moving contact 4. The nonlinear compression characteristics are specifically manifested as follows: in the direction parallel to the movement direction of the moving contact 4, the extrusion pressure and the deformation generated by the buffer block 6 during the compression process are in a nonlinear relationship, thereby achieving a multi-stage buffering effect on the moving contact 4, ensuring the reliability of the relay operation.

以上所述僅為本發明的優選實施例，並不用於限制本發明，對於本領域具有通常知識者而言，本發明可以有各種改動和變化。凡在本發明的精神和原理之內所作的任何修改、等同替換、改進等，均應包含在本發明的保護範圍之內。The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those with ordinary knowledge in the field, the present invention may have various modifications and changes. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

1:殼體 2:安裝座 21:第一觸點安裝孔 3:靜觸點 4:動觸點 5:推桿 6:緩衝塊 61:主體 611:凹孔 62:凸塊 621:接觸端面 7:第一磁軛 71:第一安裝槽 8:屏蔽罩 81:第二觸點安裝孔 82:第二安裝槽 9:靜鐵芯 91:第一容置槽 10:動鐵芯 20:反力彈簧 30:線圈 40:磁鋼 50:觸頭彈簧 60:第二磁軛 70:彈簧定位座 80:限位件 801:頂板 802:側板 1: Shell 2: Mounting seat 21: First contact mounting hole 3: Static contact 4: Moving contact 5: Push rod 6: Buffer block 61: Main body 611: Concave hole 62: Protrusion 621: Contact end face 7: First magnetic yoke 71: First mounting groove 8: Shielding cover 81: Second contact mounting hole 82: Second mounting groove 9: Static iron core 91: First accommodating groove 10: Moving iron core 20: Reaction spring 30: Coil 40: Magnetic steel 50: Contact spring 60: Second magnetic yoke 70: Spring positioning seat 80: Limiting piece 801: Top plate 802: Side plate

圖1是本發明實施例的繼電器的立體結構示意圖；圖2是本發明一個實施例的繼電器的立體剖視圖；圖3是本發明一個實施例的繼電器的正視剖視圖；圖4是本發明一個實施例的繼電器的正視剖視圖的A處局部放大示意圖；圖5是本發明一個實施例的動觸點與彈簧安裝座的連接示意圖；圖6是本發明另一個實施例的緩衝塊的安裝示意圖；圖7是本發明另一個實施例的繼電器的立體剖視圖；圖8是本發明另一個實施例的繼電器的正視剖視圖；圖9是本發明另一個實施例的繼電器的正視剖視圖的B處局部放大示意圖；圖10是本發明一個實施例的屏蔽罩與緩衝塊的安裝關係示意圖；圖11是本發明一個實施例的緩衝塊與屏蔽罩的安裝示意圖一；圖12是本發明一個實施例的緩衝塊的結構示意圖；圖13是本發明一個實施例的緩衝塊對動觸點進行緩衝的示意圖；圖14是本發明一個實施例的動觸點與靜觸點接觸時緩衝塊的狀態示意圖；圖15是本發明一個實施例的緩衝塊的安裝示意圖二。 Figure 1 is a three-dimensional structural schematic diagram of a relay of an embodiment of the present invention; Figure 2 is a three-dimensional cross-sectional view of a relay of an embodiment of the present invention; Figure 3 is a front cross-sectional view of a relay of an embodiment of the present invention; Figure 4 is a partial enlarged schematic diagram of A in the front cross-sectional view of a relay of an embodiment of the present invention; Figure 5 is a schematic diagram of the connection between a moving contact and a spring mounting seat of an embodiment of the present invention; Figure 6 is a schematic diagram of the installation of a buffer block of another embodiment of the present invention; Figure 7 is a three-dimensional cross-sectional view of a relay of another embodiment of the present invention; Figure 8 is a front cross-sectional view of a relay of another embodiment of the present invention; Figure 9 is a partial enlarged schematic diagram of B in the front cross-sectional view of a relay of another embodiment of the present invention; FIG. 10 is a schematic diagram of the installation relationship between the shielding cover and the buffer block of an embodiment of the present invention; FIG. 11 is a schematic diagram of the installation of the buffer block and the shielding cover of an embodiment of the present invention; FIG. 12 is a schematic diagram of the structure of the buffer block of an embodiment of the present invention; FIG. 13 is a schematic diagram of the buffer block of an embodiment of the present invention buffering the dynamic contact; FIG. 14 is a schematic diagram of the state of the buffer block when the dynamic contact and the static contact of an embodiment of the present invention are in contact; FIG. 15 is a schematic diagram of the installation of the buffer block of an embodiment of the present invention.

1:殼體 1: Shell

2:安裝座 2: Mounting seat

21:第一觸點安裝孔 21: First contact mounting hole

3:靜觸點 3: Static contact point

4:動觸點 4: Dynamic contact

5:推桿 5: Putting

6:緩衝塊 6: Buffer block

9:靜鐵芯 9: Still iron core

91:第一容置槽 91: First accommodating groove

10:動鐵芯 10: Moving iron core

20:反力彈簧 20: Reaction spring

40:磁鋼 40:Magnetic steel

50:觸頭彈簧 50: Contact spring

Claims

一種繼電器，其包括：殼體(1)；安裝座(2)，設置在所述殼體(1)內，所述安裝座(2)具有安裝腔，所述安裝座(2)的頂壁具有兩個間隔設置的第一觸點安裝孔(21)；兩個靜觸點(3)，分別安裝在對應的所述第一觸點安裝孔(21)中並且一端凸設於所述安裝腔內；動觸點(4)，可移動地設置在所述安裝腔內，並與兩個所述靜觸點(3)相對設置；以及緩衝塊(6)，設置在所述安裝腔內並位於兩個所述靜觸點(3)之間，所述緩衝塊(6)設置在所述動觸點(4)和所述安裝座(2)的頂壁之間，所述緩衝塊(6)具有彈性；其中，所述緩衝塊(6)包括：主體(61)，具有沿所述動觸點(4)的移動方向相背設置的第一側和第二側，所述主體(61)的第一側凹設有凹孔(611)；以及凸塊(62)，設置在所述主體(61)的所述第二側並與所述凹孔(611)對準；所述緩衝塊(6)被配置為受到縱向擠壓時，所述凸塊(62)向所述凹孔(611)的方向凹陷以使得所述凸塊(62)突出於所述第二側的高度減小；所述繼電器處於斷開狀態時，所述動觸點(4)遠離所述靜觸點(3)，所述緩衝塊(6)突出於所述靜觸點(3)與所述動觸點(4)相對的一側端面；所述動觸點(4)向靠近所述靜觸點(3)的方向運動時，所述緩衝塊(6)被壓縮。 A relay comprises: a housing (1); a mounting seat (2) arranged in the housing (1), the mounting seat (2) having a mounting cavity, the top wall of the mounting seat (2) having two first contact mounting holes (21) arranged at intervals; two static contacts (3) respectively mounted in the corresponding first contact mounting holes (21) and one end of which protrudes in the mounting cavity; a moving contact (4), The movable contact (4) is movably arranged in the installation cavity and is arranged opposite to the two static contacts (3); and a buffer block (6) is arranged in the installation cavity and is located between the two static contacts (3), the buffer block (6) is arranged between the movable contact (4) and the top wall of the installation seat (2), and the buffer block (6) is elastic; wherein the buffer block (6) comprises: a main body (61) having The main body (61) has a first side and a second side arranged opposite to each other along the moving direction of the moving contact point (4); the first side of the main body (61) is provided with a concave hole (611); and a convex block (62) is arranged on the second side of the main body (61) and aligned with the concave hole (611); the buffer block (6) is configured such that when subjected to longitudinal extrusion, the convex block (62) is concave in the direction of the concave hole (611). The movable contact (4) is recessed so that the height of the protrusion (62) protruding from the second side is reduced; when the relay is in a disconnected state, the movable contact (4) is away from the static contact (3), and the buffer block (6) protrudes from the side end surface of the static contact (3) opposite to the movable contact (4); when the movable contact (4) moves in a direction approaching the static contact (3), the buffer block (6) is compressed.

如請求項1所述的繼電器，其中，所述凸塊(62)垂直於所述動觸點(4)的移動方向的尺寸小於所述凹孔(611)。 A relay as described in claim 1, wherein the size of the protrusion (62) perpendicular to the moving direction of the moving contact (4) is smaller than that of the recess (611).

如請求項1所述的繼電器，其中，所述凸塊(62)具有與所述主體(61)的第一側相背設置的接觸端面(621)，所述凹孔(611)的深度大於或等於所述接觸端面(621)與所述凹孔(611)的底壁之間的距離。 A relay as described in claim 1, wherein the protrusion (62) has a contact end surface (621) disposed opposite to the first side of the main body (61), and the depth of the recessed hole (611) is greater than or equal to the distance between the contact end surface (621) and the bottom wall of the recessed hole (611).

如請求項1所述的繼電器，其中，所述凸塊(62)的厚度被配置為使得所述凸塊(62)完全縮入所述主體(61)的所述第二側時，所述緩衝塊(6)突出於所述靜觸點(3)與達到動觸點(4)相對的一側端面。 A relay as claimed in claim 1, wherein the thickness of the protrusion (62) is configured so that when the protrusion (62) is completely retracted into the second side of the main body (61), the buffer block (6) protrudes from the end surface of the static contact (3) opposite to the dynamic contact (4).

如請求項1所述的繼電器，其中，所述主體(61)的第一側與所述動觸點(4)相對設置，或者所述凸塊(62)與所述動觸點(4)相對設置。 A relay as described in claim 1, wherein the first side of the main body (61) is disposed opposite to the moving contact (4), or the protrusion (62) is disposed opposite to the moving contact (4).

如請求項1所述的繼電器，其中，還包括：第一磁軛(7)，安裝在所述安裝座(2)的頂壁內側並設置在兩個所述第一觸點安裝孔(21)之間，所述第一磁軛(7)與所述動觸點(4)間隔相對設置，所述第一磁軛(7)與所述動觸點(4)相對的一側具有第一安裝槽(71)，所述第一安裝槽(71)的形狀與所述緩衝塊(6)相對應；其中，所述緩衝塊(6)設置在所述第一磁軛(7)與所述動觸點(4)之間，所述緩衝塊(6)與所述第一安裝槽(71)連接。 The relay as claimed in claim 1, further comprising: a first magnetic yoke (7), mounted on the inner side of the top wall of the mounting seat (2) and arranged between the two first contact mounting holes (21), the first magnetic yoke (7) and the movable contact (4) being arranged opposite to each other at intervals, the first magnetic yoke (7) having a first mounting groove (71) on the side opposite to the movable contact (4), the shape of the first mounting groove (71) corresponding to the buffer block (6); wherein the buffer block (6) is arranged between the first magnetic yoke (7) and the movable contact (4), and the buffer block (6) is connected to the first mounting groove (71).

如請求項6所述的繼電器，其中，還包括：第二磁軛(60)，設置在所述動觸點(4)背向所述第一磁軛(7)的一側。 The relay as described in claim 6 further comprises: a second magnetic yoke (60) disposed on a side of the moving contact (4) facing away from the first magnetic yoke (7).

如請求項1所述的繼電器，其中，還包括：屏蔽罩(8)，設置在所述安裝腔內，所述屏蔽罩(8)具有兩個與所述第一觸點安裝孔(21)一一對應的第二觸點安裝孔(81)，所述屏蔽罩(8)的內側具有第二安裝槽(82)，所述第二安裝槽(82)設置在兩個所述第二觸點安裝孔(81)之間，所述第二安裝槽(82)的形狀與所述緩衝塊(6)相對應；其中，所述緩衝塊(6)安裝在所述第二安裝槽(82)內，所述靜觸點(3)還穿設於對應的所述第二觸點安裝孔(81)。 The relay as claimed in claim 1, further comprising: A shielding cover (8) disposed in the mounting cavity, the shielding cover (8) having two second contact mounting holes (81) corresponding one to one with the first contact mounting holes (21), the inner side of the shielding cover (8) having a second mounting groove (82), the second mounting groove (82) being disposed between the two second contact mounting holes (81), the shape of the second mounting groove (82) corresponding to the buffer block (6); wherein the buffer block (6) is mounted in the second mounting groove (82), and the static contact (3) is also penetrated through the corresponding second contact mounting hole (81).

如請求項1所述的繼電器，其中，所述緩衝塊(6)的厚度被配置為在處於彈性壓縮極限狀態下，所述緩衝塊(6)凹於所述靜觸點(3)與所述動觸點(4)相對的一側端面。 A relay as described in claim 1, wherein the thickness of the buffer block (6) is configured such that when in an elastic compression limit state, the buffer block (6) is recessed in a side end surface of the static contact (3) opposite to the dynamic contact (4).

如請求項1所述的繼電器，其中，所述繼電器還包括：推桿(5)，與所述動觸點(4)連接，並可移動地設置於所述殼體(1)內；彈簧定位座(70)，與所述推桿(5)連接；觸頭彈簧(50)，平行於所述動觸點(4)的運動方向設置，所述觸頭彈簧(50)的一端與所述動觸點(4)連接，另一端與所述彈簧定位座(70)連接；以及限位件(80)，具有頂板(801)和設置在所述頂板(801)的兩端的兩個側板(802)，所述頂板(801)設置在所述動觸點(4)與所述安裝座(2)的頂壁之間，兩個所述側板(802)分別設置在所述動觸點(4)的兩側並延伸至所述彈簧定位座(70)；其中，所述緩衝塊(6)設置在所述頂板(801)上。 The relay as claimed in claim 1, wherein the relay further comprises: a push rod (5) connected to the moving contact (4) and movably disposed in the housing (1); a spring positioning seat (70) connected to the push rod (5); a contact spring (50) disposed parallel to the moving direction of the moving contact (4), one end of the contact spring (50) being connected to the moving contact (4) and the other end being connected to the spring positioning seat (70). ; and a stopper (80), comprising a top plate (801) and two side plates (802) arranged at two ends of the top plate (801), the top plate (801) being arranged between the movable contact point (4) and the top wall of the mounting seat (2), the two side plates (802) being arranged on two sides of the movable contact point (4) and extending to the spring positioning seat (70); wherein the buffer block (6) is arranged on the top plate (801).

如請求項1所述的繼電器，其中，所述緩衝塊(6)沿平行於所述動觸點(4)的運動方向具有均勻粗細；或者，所述緩衝塊(6)為變截面立體結構，所述截面垂直於所述動觸點(4)的運動方向。 A relay as described in claim 1, wherein the buffer block (6) has a uniform thickness along a direction parallel to the movement direction of the moving contact (4); or, the buffer block (6) is a three-dimensional structure with a variable cross-section, and the cross-section is perpendicular to the movement direction of the moving contact (4).

如請求項1所述的繼電器，其中，所述緩衝塊(6)具有沿平行於所述動觸點(4)的運動方向的非線性壓縮特性。 A relay as described in claim 1, wherein the buffer block (6) has a nonlinear compression characteristic along a movement direction parallel to the moving contact (4).