Relay

Abstract

A relay comprises a coil rack, a coil wound on the coil rack, a movable contact piece, a static contact piece and insertion pieces, the coil rack comprises a winding reel, an upper mounting plate arranged at one end of the winding reel and a lower mounting plate arranged at the other end of the winding reel, the insertion pieces are fixed on the upper mounting plate, the relay further comprises a resistor, the resistor is arranged between the two insertion pieces, and the resistor is connected with the winding reel. The inserting piece comprises an inserting part, a winding part, a fixing part and an installing part, the fixing part comprises a side baffle, an upper baffle arranged at the upper end of the side baffle and a lower baffle arranged at the lower end of the side baffle, an installing groove is defined by the upper baffle, the lower baffle and the side baffle, a boss matched with the installing groove is arranged on the side face of the upper installing plate, and the side face of the lower installing plate is provided with a boss matched with the installing groove. The lower end of the inserting part is connected with the upper baffle, one side of the side baffle is connected with one end of the mounting part, the other end of the mounting part is provided with a slot, a pin of the resistor is arranged in the slot, and the winding part is connected with the end, provided with the slot, of the mounting part. The assembly process is simpler, and the resistor can eliminate the negative influence caused by the reverse electromotive force.

Description

TECHNICAL FIELD

[0001] The utility model relates to a relay. BACKGROUND

[0002] The relay assembly for vehicle is composed of a magnetic circuit system, a contact system and a restoring mechanism, and is an important part in the automobile. The contact system of the relay mainly comprises a plug-in piece. The plug-in piece of the existing relay comprises a plug-in part and a winding part arranged at one end of the plug-in part. During installation, one end of the plug-in part is vertically inserted into the coil holder for fixation. Since the winding part intrudes into the winding area of the coil holder, the winding part needs to be bent by 90 degrees to avoid the winding area before winding, resulting in a complicated assembly process of the existing relay. SUMMARY

[0003] The utility model wants to solve the technical problem to provide a kind of relay, and assembly process is simpler, with the resistance can eliminate the negative influence brought by reverse electromotive force.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows: a kind of relay, including coil holder, coil that is wound on coil holder, movable contact piece, static contact piece and plug-in piece, the coil holder includes winding drum, upper mounting plate that is arranged at one end of winding drum and lower mounting plate that is arranged at the other end of winding drum, the plug-in piece is fixed on upper mounting plate, further include resistance, the resistance is arranged between two plug-in pieces, the plug-in piece includes plug-in part, winding part, fixed part and installation part, the fixed part includes side baffle, upper baffle that is arranged at the upper end of side baffle and lower baffle that is arranged at the lower end of side baffle, the upper baffle, lower baffle and side baffle form installation slot, the side surface of upper mounting plate is equipped with the boss that is matched with the installation slot, the lower end of plug-in part is connected with upper baffle, one side of side baffle is connected with one end of installation part, the other end of installation part is equipped with insertion slot, the pin of resistance is arranged in insertion slot, winding part is connected with one end of installation part that is equipped with insertion slot. The utility model principle: plug-in part is exposed in the outside of relay, for the electrical connection of relay and external equipment;Fixed part is used for fixing plug-in piece on one side of coil holder, during assembly, fixed part is inserted into installation from one side of coil holder, and fixed by the boss on one side of coil holder matched with installation slot;The pin of resistance can be installed in insertion slot of installation part and one end thereof, and the increase of resistance helps to eliminate the influence brought by reverse electromotive force of relay;Winding part is connected with installation part, and the position thereof avoids winding area of coil holder, so that automatic winding of coil can be realized.

[0005] As an improvement, the plug-in part, the fixed part, the installation part and the winding part are integrally formed metal pieces.

[0006] As an improvement, the insertion slot is U-shaped, and the opening end of the insertion slot is trumpet-shaped.

[0007] As an improvement, the winding part is L-shaped.

[0008] As an improvement, a clearance groove is provided at the bottom of one side of the upper mounting plate, the mounting part and the winding part extend into the clearance groove, and the resistor is located in the clearance groove.

[0009] As an improvement, the clearance groove is formed by an upper stop surface and a side stop surface, and the left and right sides of the side stop surface are provided with inclined surfaces. The mounting part and the winding part extend from both sides of the clearance groove.

[0010] As an improvement, the leads of the resistor are perpendicular to the mounting portion.

[0011] The beneficial effects of this utility model compared with the prior art are:

[0012] The fixing part is used to fix the insert to one side of the coil frame. During assembly, the fixing part is inserted from one side of the coil frame and fixed by engaging with the boss on one side of the coil frame through the mounting slot, without the need to bend the winding part. The mounting part and the slot at one end can be used to install the resistor pins. Increasing the resistance helps to eliminate the effect of the reverse electromotive force of the relay. The winding part is connected to the mounting part and its position avoids the winding area of ​​the coil frame, which can realize the automatic winding of the coil. Attached Figure Description

[0013] Figure 1 This is a 3D diagram of a relay.

[0014] Figure 2 This is a side view of the relay.

[0015] Figure 3 This is an exploded view of the relay.

[0016] Figure 4 This is a schematic diagram of the coil frame. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figures 1 to 3 As shown, a relay includes a coil frame 2, a coil wound on the coil frame 2, a moving contact, a stationary contact, and a insert 1. The coil frame 2 includes a winding drum 24, an upper mounting plate 22 located at one end of the winding drum 24, and a lower mounting plate 23 located at the other end of the winding drum 24. The winding drum 24, the upper mounting plate 22, and the lower mounting plate 23 are integrally injection molded. The coil is mounted on the winding drum 24, and the insert 1 is fixed on the upper mounting plate 22.

[0019] like Figures 1 to 3As shown, the insert 1 includes a plug-in portion 11, a winding portion 14, a fixing portion 12, and a mounting portion 13. The plug-in portion 11, fixing portion 12, mounting portion 13, and winding portion 14 are integrally formed metal parts. The insert 1 is used to fix itself to an upper mounting plate 22 at one end of the coil frame 2. The upper mounting plate 22 cooperates with the outer shell to protect the coil frame 2. A boss 21 is provided on one side of the upper mounting plate 22. The plug-in portion 11 is exposed outside the upper mounting plate 22 and is used for electrical connection with external equipment. The plug-in portion 11 is plate-shaped. The fixing portion 12 includes a side baffle, an upper baffle provided at the upper end of the side baffle, and a lower baffle provided at the lower end of the side baffle. The upper baffle, lower baffle, and side baffle form a mounting groove, which cooperates with the boss 21 on the upper mounting plate 22. The lower end of the plug-in portion 11 is connected to the upper baffle, and one side of the side baffle is connected to one end of the mounting portion 13. The mounting part 13 is plate-shaped, with one end connected to the side baffle via an L-shaped component. The mounting part 13 and the insertion part 11 are on the same plane. The other end of the mounting part 13 is provided with a slot 131. In this embodiment, a resistor 3 is provided between the two inserts. The pins at both ends of the resistor 3 are respectively placed into the slot 131 of the mounting part 13. The pins of the resistor 3 are perpendicular to the mounting part. The slot 131 is U-shaped, with the opening end of the slot 131 being trumpet-shaped, which facilitates the insertion of the pins of the resistor 3 and improves the assembly speed. The bottom of the mounting part 13 is provided with a limiting platform, which cooperates with the coil frame 2 for limiting. The winding part 14 is connected to the end of the mounting part 13 with the slot 131. The winding part 14 is located at the lower part of one end of the mounting part 13. The winding part 14 is L-shaped and does not intrude into the winding area of ​​the coil frame 2. After the coil frame 2 automatically winds the coil, the coil wire end can be wound in the winding part 14.

[0020] like Figure 4 As shown, a clearance groove 25 is provided at the bottom of one side of the upper mounting plate 22. The mounting part 13 and the winding part 14 extend into the clearance groove 25. The resistor 3 is located in the clearance groove 25 and between the two mounting parts 13. The entire structure is compact and can accommodate the resistor 3. The clearance groove 25 is formed by an upper baffle and a side baffle. The left and right sides of the side baffle are provided with inclined surfaces 26. The mounting part 13 and the winding part 14 extend from the two sides of the clearance groove 25. The design of the inclined surfaces 26 can increase the space on both sides of the clearance groove 25, which facilitates the winding operation at the winding part.

[0021] The utility model discloses principles: the plug -in part 11 is exposed at the relay outside, is used for the electric connection of relay and external device, the fixed part 12 is used for fixing the insert piece in the coil support 2 one side, when assembling, the fixed part 12 is inserted from the coil support 2 one side and installs, realizes the fixation through the boss 21 cooperation of the installation groove and the coil support 2 one side, the installation part 13 and the insertion slot 131 of one end thereof can install the pin of resistance 3, the winding part 14 is connected with the installation part 13, and its position avoids the winding area of coil support 2, and the automatic winding of coil can be realized.

Claims

1. A relay comprising a coil holder, a coil wound on the coil holder, a movable contact, a stationary contact and an insert, the coil holder comprising a bobbin, an upper mounting plate provided at one end of the bobbin and a lower mounting plate provided at the other end of the bobbin, the insert being fixed to the upper mounting plate, characterized in that: The application also discloses a resistance arranged between the two inserting sheets, the inserting sheet comprises an inserting part, a winding part, a fixing part and a mounting part, the fixing part comprises a side baffle, an upper baffle arranged at the upper end of the side baffle and a lower baffle arranged at the lower end of the side baffle, the upper baffle, the lower baffle and the side baffle form a mounting groove, the side of the upper mounting plate is provided with a convex platform matched with the mounting groove, the lower end of the inserting part is connected with the upper baffle, one side of the side baffle is connected with one end of the mounting part, the other end of the mounting part is provided with an inserting groove, the pin of the resistance is arranged in the inserting groove, and the winding part is connected with one end of the mounting part provided with the inserting groove.

2. A relay according to claim 1, characterized in that: The inserting part, the fixing part, the mounting part and the winding part are integrally formed metal parts.

3. A relay according to claim 1, characterized in that: The inserting groove is in a U shape, and the opening end of the inserting groove is in a horn shape.

4. A relay according to claim 1, characterized in that: The winding part is in an L shape.

5. A relay according to claim 1, characterized in that: The bottom of one side of the upper mounting plate is provided with an avoiding groove, the mounting part and the winding part extend into the avoiding groove, and the resistance is arranged in the avoiding groove.

6. A relay according to claim 5, characterized in that: The avoiding groove is surrounded by an upper baffle surface and a side baffle surface, the left and right sides of the side baffle surface are provided with inclined surfaces, and the mounting part and the winding part extend from the two sides of the avoiding groove.

7. A relay according to claim 1, characterized in that: The pin of the resistance is perpendicular to the mounting part.

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