CN218631820U

CN218631820U - Relay with a movable contact

Info

Publication number: CN218631820U
Application number: CN202222625236.7U
Authority: CN
Inventors: 余航飞; 姚师培; 葛森彪; 胡学波; 李涛涛
Original assignee: T Max Hangzhou Technology Co Ltd
Current assignee: T Max Hangzhou Technology Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-03-14
Anticipated expiration: 2032-09-30
Also published as: WO2024066817A1

Abstract

The utility model discloses a relay, relay includes: the relay comprises a relay body, a diode and a mounting part, wherein the relay body comprises a first connecting part, the diode is connected with a wiring harness of the relay body, the mounting part comprises a second connecting part and a plurality of fixing parts, the first connecting part is matched with the second connecting part so that the mounting part can be detachably mounted on the relay body, and a placing groove for mounting the diode is formed in the fixing part. The utility model discloses relay through detachable cooperation relation between first connecting portion and the second connecting portion to make installed part detachably install on the relay body, improve the convenience of changing the installed part. Through set up the standing groove on the fixed part to make the diode install in the standing groove, thereby make the fixed part play the guard action to the diode, and then avoid the diode to be squeezed the problem that causes the damage, improved the security performance of relay.

Description

Relay with a movable contact

Technical Field

The utility model relates to an electric control device technical field especially relates to a relay.

Background

A relay is an electric control device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount (excitation amount) meets a predetermined requirement. It has an interactive relationship between a control system (also called an input loop) and a controlled system (also called an output loop). It is commonly used in automated control circuits, which are actually a "recloser" that uses low current to control high current operation. Therefore, the circuit has the functions of automatic regulation, safety protection, circuit conversion and the like.

In addition, two ends of the coil of the relay are connected with diodes in parallel, and the function of protecting the circuit is achieved. However, in the related art, the diode on the relay is not fixed or fixed by a band, and the diode or the heat shrinkage tube for protecting the diode is easily damaged during assembly, thereby causing the breakdown or short circuit of the diode. Because the mode of fixing the diode by the binding tape is adopted, the diode needs to be fixed on the existing wiring harness in the circuit, the position of the diode can only be relatively fixed, and the relay is arranged in the control box, so that whether the diode can be pressed by the control box on the peripheral side of the diode after the assembly is finished can not be ensured, and potential safety hazards also exist.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving one of the technical problems in the related art at least to a certain extent.

Therefore, the embodiment of the utility model provides a higher relay of security performance, this relay has diode protection architecture, and the rational standard of structural arrangement.

The utility model discloses relay includes: the relay comprises a relay body, a diode and a mounting part, wherein the relay body comprises a first connecting part, the diode is connected with a wiring harness of the relay body, the mounting part comprises a second connecting part and a plurality of fixing parts, the first connecting part is matched with the second connecting part so that the mounting part can be detachably mounted on the relay body, and a placing groove for mounting the diode is formed in the fixing part.

The utility model discloses relay through detachable cooperation relation between first connecting portion and the second connecting portion to make installed part detachably install on relay body, improve the convenience of changing the installed part. Through set up the standing groove on the fixed part to make the diode install in the standing groove, thereby make the fixed part play the guard action to the diode, and then avoid the diode to be squeezed the problem that causes the damage, improved the security performance of relay.

Therefore, the utility model discloses relay has solved the problem that there is the potential safety hazard in the diode.

In some embodiments, the second connecting portion has a ring shape, the second connecting portion is fitted around an outer peripheral side of the first connecting portion, and at least a portion of an outer peripheral wall of the first connecting portion abuts against at least a portion of an inner peripheral wall of the second connecting portion.

In some embodiments, the mounting member further includes a sealing portion, an outer peripheral wall of the sealing portion is connected to an inner peripheral wall of the second connecting portion, the sealing portion is provided with a plurality of mounting holes, the mounting holes correspond to the contacts on the relay body in a one-to-one manner, and the contacts on the relay body penetrate through the mounting holes corresponding to the contacts.

In some embodiments, the plurality of fixing portions may be divided into a first fixing portion and a second fixing portion according to an extending direction of the placement groove opened therein, the placement groove on the first fixing portion extends in a first direction, and the placement groove on the second fixing portion extends in a second direction.

In some embodiments, the number of the first fixing portions is two, and the two first fixing portions are symmetrically disposed on two sides of the second connecting portion in the second direction.

In some embodiments, the placing groove on the first fixing portion is a first placing groove, the first placing groove is formed in an end surface of the first fixing portion, the end surface is close to the relay body, the mounting member further includes two isolation portions, the two isolation portions correspond to the two first fixing portions one to one, the isolation portions are formed on the peripheral wall of the second connecting portion, and the isolation portions are located on one side of the first fixing portion, which is close to the relay body.

In some embodiments, the isolation portion and the first fixing portion have a gap therebetween, and a distance of the gap in the third direction is smaller than a minimum diameter of the diode.

In some embodiments, the first placement slot includes a first slot segment and a second slot segment in communication, the first slot segment having a cross-sectional area greater than a cross-sectional area of the second slot segment, the second slot segment having a cross-sectional area greater than a minimum cross-sectional area of the diode and less than a maximum cross-sectional area of the diode.

In some embodiments, the number of the second fixing portions is two, the two second fixing portions are distributed at intervals along the second direction, the placing groove in the second fixing portion is a second placing groove, the second fixing portion includes a vertical section, a horizontal section and a bent section, one end of the vertical section is connected to the outer peripheral wall of the second connecting portion, the other end of the vertical section is connected to the end face, close to the vertical section, of the horizontal section, the bent section is located on the side, away from the relay body, of the vertical section, one end, away from the second connecting portion, of the bent section is connected to the horizontal section, and the second placing groove is defined by the vertical section, the horizontal section and the bent section together.

In some embodiments, a distance between an end of the bent section close to the second connection portion and the outer circumferential wall of the second connection portion in the first direction is smaller than the minimum diameter of the diode.

Drawings

Fig. 1 is a schematic diagram of a relay body of a relay according to an embodiment of the present invention.

Fig. 2 is a schematic view of a mounting member of a relay according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a relay according to an embodiment of the present invention, in which a diode is mounted in a first placement groove in a vertical direction.

Fig. 4 is a right side schematic view of a mounting and a vertically mounted diode of a relay according to an embodiment of the invention.

Fig. 5 is a schematic cross-sectional view of a mounting and a vertically mounted diode of a relay according to an embodiment of the invention.

Fig. 6 is a schematic diagram of the relay according to the embodiment of the present invention in which the diode is horizontally mounted in the second placement groove.

Fig. 7 is a schematic right view of a mounting member and a horizontally mounted diode of a relay according to an embodiment of the present invention.

Reference numerals are as follows:

a relay body 1, a first connecting portion 11, a wire harness 12, a contact 13,

A diode 2,

The mounting member 3, the second connecting member 31, the first fixing portion 32, the first placement groove 321, the second fixing portion 33, the second placement groove 331, the vertical section 332, the horizontal section 333, the curved section 334, the sealing portion 34, the mounting hole 341, and the partition 35.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The relay according to an embodiment of the present invention is described below with reference to the drawings.

As shown in fig. 1 to 7, a relay according to an embodiment of the present invention includes: relay body 1, diode 2 and mounting 3. The relay body 1 includes a first connection portion 11, and the diode 2 is connected to a wire harness 12 of the relay body 1. The mounting member 3 includes a second connecting portion 31 and a plurality of fixing portions, and the first connecting portion 11 cooperates with the second connecting portion 31 to detachably mount the mounting member 3 on the relay body 1. The fixing part is provided with a placing groove for installing the diode 2.

It can be understood that, as shown in fig. 1, the relay body 1 has a plurality of wire harnesses 12 led out from the inside of the relay body 1, and the high-voltage current backflow avoided by connecting the diode 2 is avoided on two of the wire harnesses 12 in the plurality of wire harnesses 12, so as to damage the relay body 1, thereby protecting the circuit connected by the relay according to the embodiment of the present invention.

Alternatively, as shown in fig. 1, the plurality of wire harnesses 12 are led out from the upper end surface of the relay body 1, the first connection portion 11 is provided on the front end surface of the relay body 1, the first connection portion 11 is annular, and the first connection portion 11 is provided in the front-rear direction. The relay body 1 further has a plurality of contacts 13, the contacts 13 are located on a front end surface of the relay body 1, the contacts 13 are arranged along a front-rear direction, and the plurality of contacts 13 are located inside the first connecting portion 11.

Optionally, as shown in fig. 1 to 7, the mount 3 comprises a second connection portion 31. The second connecting portion 31 has a detachable fitting relationship with the first connecting portion 11, so that the mounting member 3 is detachably mounted on the relay body 1 by the fitting relationship therebetween.

Alternatively, as shown in fig. 3 and 6, the fixing portion is provided with a placement groove for mounting the diode 2. After the diode 2 is connected with the wiring harness 12 on the relay body 1, the diode 2 is installed in the placing groove, so that the fixing part plays a role in protecting the diode 2, and further the diode 2 is prevented from being damaged due to extrusion of other parts. And, the position of accessible planning fixed part to make diode 2 fix suitable position on relay body 1, and then make the utility model discloses the structural arrangement of relay of embodiment is reasonable standard.

Further, after the diode 2 is mounted in the placement groove, the harness terminal and the harness terminal insert sheet are mounted on the diode 2, and then the harness terminal insert sheet is fixed on the corresponding contact 13. Specifically, as shown in fig. 3 and 6, there are two diodes 2, the two diodes 2 are connected to two wire harnesses 12 on the relay body 1, respectively, the two diodes 2 are placed in placement grooves on two fixing portions, and then the wire harnesses 12 are bent upward and forward (embodiment of fig. 3) or the wire harnesses 12 are bent downward and forward so that two wire harness end tabs are connected to the contacts 13 located on the leftmost side and the contacts 13 located on the rightmost side, respectively, thereby further functioning to fix the diodes 2.

Therefore, the utility model discloses the relay of embodiment is through detachable cooperation relation between first connecting portion 11 and the second connecting portion 31 to make installed part 3 detachably install on relay body 1, improve the convenience of changing installed part 3. Through set up the standing groove on the fixed part to make diode 2 install in the standing groove, thereby make the fixed part play the guard action to diode 2, and then avoid diode 2 to be squeezed the problem that causes the damage, improved the security performance of relay.

Therefore, the utility model discloses the problem that there is the potential safety hazard in diode 2 has been solved to the relay.

In some embodiments, as shown in fig. 1 to 7, the second connecting portion 31 has a ring shape, the second connecting portion 31 is disposed on an outer peripheral side of the first connecting portion 11, and at least a portion of an outer peripheral wall of the first connecting portion 11 abuts against at least a portion of an inner peripheral wall of the second connecting portion 31.

Alternatively, the first connecting portion 11 is made of aluminum, the second connecting portion 31 is made of plastic, and the outer shape of the first connecting portion 11 is substantially the same as that of the second connecting portion 31. It can be understood that the second connecting portion 31 is sleeved on the first connecting portion 11, and the second connecting portion 31 has a certain elasticity, so that the inner peripheral wall of the second connecting portion 31 abuts against the outer peripheral wall of the first connecting portion 11, so that the first connecting portion 11 and the second connecting portion 31 are matched with each other, and the mounting member 3 is mounted on the relay body 1.

In some embodiments, as shown in fig. 1 to 7, the mounting member 3 further includes a sealing portion 34, an outer peripheral wall of the sealing portion 34 is connected to an inner peripheral wall of the second connecting portion 31, a plurality of mounting holes 341 are provided on the sealing portion 34, the plurality of mounting holes 341 correspond to the plurality of contacts 13 on the relay body 1 one-to-one, and the contacts 13 on the relay body 1 penetrate through the mounting holes 341 corresponding thereto.

Alternatively, as shown in fig. 2, the sealing portion 34 is located at an opening at the front end of the second connection portion 31. In other words, the sealing portion 34 is a front cover of the second connecting portion 31. The sealing portion 34 is provided with a plurality of mounting holes 341, and the mounting holes 341 extend in the front-rear direction and penetrate the sealing portion 34.

Specifically, as shown in fig. 1 and 2, there are four contacts 13 on the relay body 1, and there are also four mounting holes 341 on the seal portion 34, and the four contacts 13 correspond to the four mounting holes 341 one by one. When the mounting member 3 is mounted on the relay body 1, the contact 13 penetrates the mounting hole 341 corresponding thereto.

Further, as shown in fig. 1 and 2, the mounting hole 341 is a square hole, and the size of the mounting hole 341 matches the size of the contact 13, so that after the contact 13 penetrates through the mounting hole 341, the upper end surface, the lower end surface, the left end surface and the right end surface of the contact 13 are respectively attached to the hole wall of the mounting hole 341, thereby improving the assembling effect between the mounting member 3 and the contact body.

In some embodiments, the plurality of fixing portions may be divided into a first fixing portion 32 and a second fixing portion 33 according to an extending direction of the placement groove opened thereon, the placement groove on the first fixing portion 32 extends in a first direction, and the placement groove on the second fixing portion 33 extends in a second direction.

It can be understood that the extension directions of the placing grooves formed in the plurality of fixing portions are different. The first direction refers to the up-down direction as shown in fig. 2, and the second direction refers to the left-right direction as shown in fig. 2. That is, according to the operating condition demand, diode 2 can be installed in the standing groove of different extending direction to improve the multi-adaptability of assembly.

In some embodiments, as shown in fig. 2 to 5, there are two first fixing portions 32, and the two first fixing portions 32 are symmetrically disposed on two sides of the second connecting portion 31 in the second direction.

Alternatively, as shown in fig. 2, the two first fixing portions 32 are located at the left and right sides of the second connecting portion 31 and are symmetrically disposed. The right end of the first fixing portion 32 located on the left side of the second connecting portion 31 is connected to the left end face of the second connecting portion 31, and the left end of the first fixing portion 32 located on the right side of the second connecting portion 31 is connected to the right end face of the second connecting portion 31. It is understood that, as shown in fig. 3, two diodes 2 are respectively provided on the left and right sides of the second connection portion 31.

In some embodiments, as shown in fig. 2 to 5, the placing groove on the first fixing portion 32 is a first placing groove 321, and the first placing groove 321 is opened on an end surface of the first fixing portion 32 close to the relay body 1. The mounting member 3 further includes two isolation portions 35, the two isolation portions 35 correspond to the two first fixing portions 32 one to one, the isolation portions 35 are provided on the outer peripheral wall of the second connecting portion 31, and the isolation portions 35 are located on one side of the first fixing portion 32 close to the relay body 1.

Alternatively, as shown in fig. 2 to 5, the first placing groove 321 is opened on the rear end surface of the first fixing portion 32, the first placing groove 321 extends in the up-down direction, and the upper and lower ends of the first placing groove 321 extend onto the upper and lower end surfaces of the first fixing portion 32.

Specifically, the cross section of the first placement groove 321 is semicircular, and the size of the first placement groove 321 is matched with the size of the outer peripheral wall of the diode 2, so that the diode 2 is placed in the diode 2, and the outer peripheral wall of the diode 2 is attached to the groove wall of the first placement groove 321.

Optionally, as shown in fig. 2 to 5, the mounting member 3 further includes two isolation portions 35, and the two isolation portions 35 are located at the left and right sides of the second connecting portion 31 and are symmetrically disposed. The right end of the isolation portion 35 located at the left side of the second connection portion 31 is connected to the left end surface of the second connection portion 31, and the left end of the isolation portion 35 located at the right side of the second connection portion 31 is connected to the right end surface of the second connection portion 31. The two partition portions 35 correspond to the front and rear positions of the two first fixing portions 32, and the partition portion 35 is located behind the first partition portion 35.

From this, through setting up isolation part 35 to make diode 2 and relay body 1 separate each other, avoid diode 2 and relay body 1 contact to cause the problem of short circuit to take place, thereby improve the utility model discloses the security of relay.

Further, as shown in fig. 2 to 5, a gap is provided between the isolation portion 35 and the first fixing portion 32, and a distance of the gap in the third direction is smaller than the minimum diameter of the diode 2.

It will be appreciated that as shown in fig. 1, the diode 2 comprises a first segment, a second segment and a third segment which are connected in series, the first segment and the third segment have the same diameter, and the diameter of the first segment and the third segment is smaller than that of the second segment. That is, the minimum diameter of the diode 2 refers to the diameters of the first and third segments.

Therefore, the diode 2 is inserted into the first placing groove 321 in the up-down direction, and the diode 2 is prevented from coming off from the side of the first placing groove 321 by the restriction of the first fixing portion 32 and the separating portion 35, thereby improving the stability of the assembly of the diode 2.

In some embodiments, as shown in fig. 5, the first placement groove 321 includes a first groove section and a second groove section that are communicated, the first groove section having a cross-sectional area larger than that of the second groove section, and the second groove section having a cross-sectional area larger than the minimum cross-sectional area of the diode 2 and smaller than the maximum cross-sectional area of the diode 2.

Alternatively, as shown in fig. 5, the first slot section is located above the second slot section, the cross-sectional area of the first slot section is larger than the cross-sectional area of the second section of the diode 2, and the cross-sectional area of the second slot section is larger than the cross-sectional area of the first section of the diode 2 and smaller than the cross-sectional area of the second section of the diode 2. In other words, the radius of the first slot segment is larger than the radius of the second segment of the diode 2, and the radius of the second slot segment is larger than the radius of the first segment of the diode 2 and smaller than the radius of the second segment of the diode 2.

Therefore, the diode 2 can only be inserted into the first placement groove 321 from the top to the bottom, and the diode 2 is prevented from falling out of the first placement groove 321 due to self weight under the obstruction of the step formed at the joint of the second groove section and the first groove section, so that the stability of the assembly of the diode 2 is further improved.

In some embodiments, as shown in fig. 1 to 7, there are two second fixing portions 33, two second fixing portions 33 are spaced apart along the second direction, and the placement groove on the second fixing portions 33 is the second placement groove 331. The second fixing portion 33 includes a vertical section 332, a horizontal section 333, and a bent section 334. One end of the vertical section 332 is connected with the outer peripheral wall of the second connecting portion 31, the other end of the vertical section 332 is connected with the end face, close to the vertical section 332, of the horizontal section 333, the bent section 334 is located on the side, away from the relay body 1, of the vertical section 332, one end, away from the second connecting portion 31, of the bent section 334 is connected with the horizontal section 333, and the vertical section 332, the horizontal section 333 and the bent section 334 define a second placing groove 331 together

Alternatively, as shown in fig. 2, the second fixing portion 33 is disposed above the second connecting portion 31, the second placement groove 331 is located between the second fixing portion 33 and the second connecting portion 31, and the two second fixing portions 33 are spaced apart in the left-right direction so that there is a gap between the two second fixing portions 33.

Alternatively, as shown in fig. 7, the lower end of the vertical section 332 is connected to the outer circumferential wall of the second connecting portion 31, the upper end of the vertical section 332 is connected to the lower end surface of the horizontal section 333, the curved section 334 is located at the front side of the vertical section 332, and the upper end of the curved section 334 is connected to the front end of the horizontal section 333. The vertical section 332, the horizontal section 333, and the curved section 334 collectively define a second placement groove 331.

In some embodiments, as shown in fig. 7, a distance between an end of the curved section 334 close to the second connection portion 31 and the outer circumferential wall of the second connection portion 31 in the first direction is smaller than the minimum diameter of the diode 2.

Alternatively, as shown in fig. 7, the distance in the up-down direction between the lower end of the bent section 334 and the upper wall surface of the second connection portion 31 is smaller than the diameter of the first section of the diode 2. Thereby, the diode 2 is prevented from coming out from the front side of the second placement groove 331.

In summary, the diode 2 is mounted in two ways, i.e., the diode 2 is mounted on the mount 3 in the up-down direction as shown in fig. 3, and the diode 2 is mounted on the mount 3 in the left-right direction as shown in fig. 6. In any of the mounting methods, the wire harness end tabs of the two diodes 2 are connected to the leftmost contact 13 and the rightmost contact 13. Therefore, the utility model discloses relay can select more reasonable diode 2's assembly methods according to the wiring condition of different control boxes.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Although the above embodiments have been shown and described, it should be understood that they are exemplary and should not be construed as limiting the present invention, and that many changes, modifications, substitutions and alterations to the above embodiments by those of ordinary skill in the art are intended to be within the scope of the present invention.

Claims

1. A relay, comprising:

a relay body including a first connection portion;

the diode is connected with the wiring harness of the relay body;

the mounting part comprises a second connecting part and a plurality of fixing parts, the first connecting part is matched with the second connecting part to detachably mount the mounting part on the relay body, and a placing groove for mounting the diode is formed in the fixing part.

2. The relay according to claim 1, wherein the second connecting portion has a ring shape, the second connecting portion is fitted around an outer peripheral side of the first connecting portion, and at least a portion of an outer peripheral wall of the first connecting portion abuts against at least a portion of an inner peripheral wall of the second connecting portion.

3. The relay according to claim 2, wherein the mounting member further includes a sealing portion, an outer peripheral wall of the sealing portion is connected to an inner peripheral wall of the second connecting portion, the sealing portion is provided with a plurality of mounting holes, the plurality of mounting holes correspond to the plurality of contacts on the relay body in a one-to-one manner, and the contacts on the relay body penetrate through the corresponding mounting holes.

4. The relay according to claim 2, wherein the plurality of fixing portions are divided into a first fixing portion and a second fixing portion in an extending direction of the placement groove opened therein, the placement groove on the first fixing portion extends in a first direction, and the placement groove on the second fixing portion extends in a second direction.

5. The relay according to claim 4, wherein the number of the first fixing portions is two, and the two first fixing portions are symmetrically disposed on both sides of the second connecting portion in the second direction.

6. The relay according to claim 5, wherein the placement groove on the first fixing portion is a first placement groove that is opened on an end surface of the first fixing portion that is close to the relay body;

the mounting part still includes two pars separata, two pars separata and two first fixed part one-to-one, the pars separata is established on the periphery wall of second connecting portion, just the isolation position is located being close to of first fixed part one side of relay body.

7. The relay according to claim 6, wherein the separation portion and the first fixing portion have a gap therebetween, and a distance of the gap in the third direction is smaller than a minimum diameter of the diode.

8. The relay according to claim 6, wherein the first placement groove comprises a first groove section and a second groove section communicating with each other, a cross-sectional area of the first groove section is larger than a cross-sectional area of the second groove section, and a cross-sectional area of the second groove section is larger than a minimum cross-sectional area of the diode and smaller than a maximum cross-sectional area of the diode.

9. The relay according to claim 4, wherein the second fixing portions are two, the two second fixing portions are spaced apart along the second direction, and the placement grooves on the second fixing portions are second placement grooves;

the second fixed part includes vertical section, horizontal segment and crooked section, the one end of vertical section with the periphery wall of second connecting portion links to each other, the other end of vertical section with being close to of horizontal segment the terminal surface of vertical section links to each other, crooked section is located keeping away from of vertical section one side of relay body, keeping away from of crooked section the one end of second connecting portion with the horizontal segment links to each other, the vertical section the horizontal segment and crooked section prescribes a limit to jointly the second standing groove.

10. The relay according to claim 9, wherein a distance between an end of the bent section close to the second connection portion and an outer peripheral wall of the second connection portion in the first direction is smaller than a minimum diameter of the diode.