Relay shield and relay

Abstract

The utility model discloses a relay shield and a relay, belonging to the relay technology field, the relay shield comprises a shield main body and a shield nut, the shield main body comprises a main protection part and a side protection part arranged along the edge of the main protection part, the main protection part is provided with a plurality of through holes for relay terminals and leads to pass through; one end of the protective cover nut is open, the inner side of the protective cover nut is provided with an internal thread matched with the relay terminal, and the protective cover nut is used for covering the end part of the relay terminal and locking the relay terminal and a connecting structure of the relay terminal; the relay shield is mounted on the support cover of the relay, and the relay terminals penetrate through the through holes and then are locked by the shield nuts, so that complete anti-jumping connection of each wiring terminal can be realized, and the possibility of damage of the relay is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of relay technology, specifically relating to a relay cover and a relay. Background Technology

[0002] Currently, to prevent short circuits caused by workers accidentally touching the relay terminals with a wrench during the assembly of relay 3, an anti-slip-connection structure is designed on relay 3. The existing anti-slip-connection structure uses a rubber sleeve 34, which is placed over the end of the lead wire, and after the lead wire is secured, it is then placed over the terminal head to prevent slippage (as shown in the attached diagram). Figure 1 The anti-jump connection structure still has the following problems or defects:

[0003] 1. Requires lead wire;

[0004] 2. It is easy to fall off and break during the assembly process;

[0005] 3. It is easily detached due to vibration during transportation or application;

[0006] 4. It only applies to protection of a single terminal and cannot achieve complete protection against tripping of all terminals of the relay. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a relay cover and a relay that can completely prevent jump-out of each terminal of the relay, has good vibration resistance, is not easy to fall off during assembly and application, and has high reliability.

[0008] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0009] A relay cover includes a cover body and a cover nut. The cover body includes a main protective portion and a side protective portion disposed along the edge of the main protective portion. The main protective portion has a plurality of through holes for relay terminals and leads to pass through. One end of the cover nut is open, and the inner side of the cover nut is provided with an internal thread adapted to the relay terminal. The cover nut is used to cover the end of the relay terminal and lock the relay terminal to its connection structure.

[0010] Furthermore, the through hole includes a fixing hole, the diameter of which is smaller than the outer diameter of the protective nut.

[0011] Furthermore, the main protective part is fitted with a metal insert, the fixing hole is opened on the metal insert, and the metal insert around the fixing hole is exposed.

[0012] Furthermore, the through hole includes a free hole, the diameter of which is larger than the outer diameter of the protective nut.

[0013] Furthermore, the main protective part is recessed downward on one side of the free hole to form a relief groove.

[0014] Furthermore, the fixing hole and the free hole are located in the middle of the main protective part and are arranged along the longitudinal direction of the main protective part.

[0015] Furthermore, the through hole also includes two clearance holes, which are respectively located at the ends of the main protective part at both lateral ends.

[0016] Furthermore, the side protection portion opens on one side of the clearance hole, causing the clearance hole to form a U-shaped structure.

[0017] Furthermore, the length of the side protection portion at both ends of the main protection portion in the lateral direction is greater than the length of the side protection portion at other locations.

[0018] A relay, wherein the relay support cover is fitted with the aforementioned relay cover, and the relay terminals pass through the through hole and are locked in place by the cover nut.

[0019] After adopting the above technical solution, the beneficial effects of this utility model are:

[0020] The relay cover of this utility model includes a cover body and a cover nut. The cover body includes a main protective part and a side protective part provided along the edge of the main protective part. The main protective part has multiple through holes for relay terminals and leads to pass through. One end of the cover nut is open, and the inner side of the cover nut is provided with an internal thread that is compatible with the relay terminal. The cover nut is used to cover the end of the relay terminal and lock the relay terminal to its connection structure. It has good vibration resistance, is not easy to fall off during assembly and application, has high reliability, and has a good protective effect.

[0021] Because the relay of this utility model has a relay cover installed on the relay support cover, and the relay terminals are locked by the cover nut after passing through the through hole, complete anti-slip connection of each terminal can be achieved, reducing the possibility of relay damage.

[0022] In summary, the relay cover and relay of this utility model solve the technical problems of existing anti-tripping structures being prone to detachment due to vibration and the inability to achieve complete anti-tripping protection for each terminal. The relay cover of this application can be locked onto the relay, is not easy to fall off during assembly and application, has good vibration resistance, high reliability, and achieves complete anti-tripping protection for each terminal of the relay, reducing the possibility of relay damage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a relay with an anti-tripping structure in the prior art;

[0024] Figure 2 This is a schematic diagram of the structure of the main body of the protective cover of this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the protective cap nut of this utility model;

[0026] Figure 4 This is a schematic diagram of one usage state of the relay cover of this utility model;

[0027] Figure 5 This is a schematic diagram of another usage state of the relay cover of this utility model;

[0028] In the figure, 1-protective cover body, 11-main protective part, 12-fixing hole, 13-metal insert, 14-free hole, 15-avoidance hole, 16-side protective part, 17-avoidance groove, 2-protective cover nut, 3-relay, 31-support cover, 32, 33-lead wire, 34-rubber sheath. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the textual part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0030] In the description of this specification, unless otherwise expressly defined, the terms "setup", "installation", "connection", etc. should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in combination with the specific content of the technical solution.

[0031] Example 1:

[0032] like Figure 2 and Figure 3 As shown, a relay cover includes a cover body 1 and a cover nut 2, both made of insulating plastic. The cover body 1 includes a main protective portion 11 and side protective portions 16 arranged along the edge of the main protective portion 11, wherein the main protective portion 11 is horizontally arranged and the side protective portions 16 are vertically arranged. The main protective portion 11 has multiple through holes for relay terminals and leads 33 to pass through. One end of the cover nut 2 is open, and the inner side of the cover nut 2 is provided with an internal thread adapted to the relay terminal. The cover nut 2 is used to cover the end of the relay terminal and lock the relay terminal to its connection structure. The outer side of the cover nut 2 has a hexagonal structure for easy tightening and fixing of the cover.

[0033] The main body 1 of the cover can achieve insulation between relay terminals and wrapping to prevent jump-out. The cover nut 2 can wrap one or more terminals to prevent jump-out during installation and application, as well as fix the cover to the relay. The cover body 1 and the cover nut 2 can achieve complete anti-jump-out function to avoid relay short circuit. The cover with this structure is not easy to fall off when it is touched during assembly and application, has good vibration resistance, and high reliability.

[0034] like Figure 2 As shown, specifically, the through hole includes a fixing hole 12. The diameter of the fixing hole 12 is smaller than the outer diameter of the cover nut 2. The fixing hole 12 is used to restrict the freedom of the cover body 1 and confirm the assembly position. After the relay terminal passes through the fixing hole 12 and is locked with the cover nut 2, the cover body 1 can be fixed on the relay.

[0035] Furthermore, since the lead wire 32 needs to be inserted into the relay terminal before the protective cap 2 is installed, in order to avoid poor conductivity between the lead wire and the relay terminal, a metal insert 13 is embedded in the main protective part 11. The fixing hole 12 is opened on the metal insert 13, and the metal insert 13 around the fixing hole 12 is exposed. After the protective cap 2 is tightened, the lead wire 32 can make good contact and conduction with the relay terminal through the metal insert 13, ensuring that the whole circuit and the assembly of the lead wire 32 are not affected.

[0036] like Figure 2 As shown, the through hole also includes a free hole 14. The diameter of the free hole 14 is larger than the outer diameter of the protective nut 2. After the relay terminal passes through the free hole 14, the connector of the lead wire 32 is inserted. The connector can make good contact with the relay terminal and conduct electricity. The diameter of the free hole 14 is large enough to facilitate the adjustment of the angle of the lead wire 32 and to leave a margin to avoid breakage. The main protective part 11 is recessed downward on one side of the free hole 14 to form a relief groove 17, which can lower the installation position of the connector of the lead wire 33 and avoid the main protective part 11 around the free hole 14 being too thick, which would cause the connector to not be able to make complete contact with the relay terminal after being inserted, resulting in poor conductivity.

[0037] To ensure that the positions of each through hole are compatible with the relay terminals and to accommodate various relay models, the fixed hole 12 and the free hole 14 are located in the middle of the main protective part 11 and are arranged longitudinally along the main protective part 11, allowing the control terminals of the relay, namely terminals 30 and 50, to pass through. The through holes also include two clearance holes 15, which are respectively located at the ends of the main protective part 11 in the lateral direction, allowing the lead wires 33 of the relay's battery terminals to pass through.

[0038] like Figure 4 As shown, the relay shield of this application can be applied to ordinary relays, such as... Figure 5As shown, the relay cover of this application can be applied to multifunctional relays.

[0039] like Figure 2 As shown, preferably, the side protection part 16 has an opening on one side of the clearance hole 15, making the clearance hole 15 form a U-shaped structure, and the lead wire 33 connected to the battery terminal can extend from the main protection part 11 (e.g. Figure 4 As shown), it can also extend from the opening of the side guard 16 (as shown). Figure 5 As shown, this structure is easy to apply to various scenarios. When the relay is installed, the opening of the side protection part 16 is in a position where the wrench cannot be connected, such as the side near the starter. Therefore, the opening of the side protection part 16 does not affect the anti-jumping effect of the cover.

[0040] More preferably, since the position of the battery terminal on the relay is lower than the position of the control terminal, and the two ends of the side protection part 16 are not restricted by the relay support cover 31 structure, the vertical length of the side protection part 16 is set such that the length of the side protection part 16 at both ends of the main protection part 11 is greater than the length of the side protection part 16 at other positions, which can ensure the anti-slip connection effect of the battery terminal.

[0041] Example 2:

[0042] like Figure 4 and Figure 5 As shown, a relay has a relay cover 31 on which the aforementioned relay cover is installed. The relay terminals pass through the through holes and are locked by the cover nut 2. Specifically, the two control terminals of the relay pass through the fixing hole 12 and the free hole 14 on the cover body 1, respectively. After the lead wire 32 is inserted, it is locked by the cover nut 2. After the two battery terminals of the relay are connected to the conductive pieces of the lead wire 33, the lead wire 33 extends out from the clearance hole 15 of the main protection part 11 or the opening of the side protection part 16. Since the battery terminals are covered by the cover, they can be locked with ordinary nuts.

[0043] The relay cover and relay of this utility model are provided with a cover body on the relay terminal. The cover body includes a main protective part and a side protective part provided along the edge of the main protective part. The cover nut has an internal thread, which can cover the end of the relay terminal and lock the relay terminal to its connection structure. It has good vibration resistance, is not easy to fall off during assembly and application, has high reliability, and has a good protective effect.

[0044] While specific embodiments of this utility model have been described above, those skilled in the art should understand that the described embodiments are merely some, not all, embodiments of this utility model. These are merely illustrative examples, and the scope of protection of this utility model is defined by the claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model and without any inventive effort, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A relay cover, characterized in that, It includes a protective cover body (1) and a protective cover nut (2). The protective cover body (1) includes a main protective part (11) and a side protective part (16) provided along the edge of the main protective part (11). The main protective part (11) has multiple through holes for relay terminals and leads (33) to pass through. The protective nut (2) has an open end and an internal thread that is compatible with the relay terminal on the inside. The protective nut (2) is used to cover the end of the relay terminal and lock the relay terminal to its connection structure.

2. The relay cover according to claim 1, characterized in that, The through hole includes a fixing hole (12), the diameter of which is smaller than the outer diameter of the protective nut (2).

3. The relay cover according to claim 2, characterized in that, The main protective part (11) is fitted with a metal insert (13), and a fixing hole (12) is opened on the metal insert (13). The metal insert (13) around the fixing hole (12) is exposed.

4. The relay cover according to claim 2, characterized in that, The through hole includes a free hole (14), the diameter of which is larger than the outer diameter of the protective nut (2).

5. The relay cover according to claim 4, characterized in that, The main protective part (11) is recessed downward on one side of the free hole (14) to form a relief groove (17).

6. The relay cover according to claim 4, characterized in that, The fixing hole (12) and the free hole (14) are located in the middle of the main protective part (11) and are arranged along the longitudinal direction of the main protective part (11).

7. The relay cover according to claim 1, characterized in that, The through hole also includes two clearance holes (15), which are respectively located at the ends of the main protective part (11) at both transverse ends.

8. The relay cover according to claim 7, characterized in that, The side protection part (16) has an opening on one side of the clearance hole (15) to form a U-shaped structure for the clearance hole (15).

9. The relay cover according to claim 8, characterized in that, The length of the side protection part (16) at both ends of the main protection part (11) is greater than the length of the side protection part (16) at other positions.

10. A relay, characterized in that, The relay (3) is fitted with a relay cover (31) as described in any one of claims 1 to 9, and the relay terminals are locked by the cover nut (2) after passing through the through hole.

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