Positioning and locking system for relays on circuit breakers

Abstract

Positioning and Locking System of a Relay on a Circuit Breaker The subject of the invention is a positioning and locking system of a relay (1) on a circuit breaker (2), characterized in that at the circuit breaker (2): a receiving interface (51) configured for the connection interface of the relay (1) to pass through, a locking plate (52) parallel to the receiving interface and configured for the connection interface of the relay and for at least one fixed interface (9) of the relay to pass through and having a cooperating interface with the fixed interface of the relay, a translation mechanism (10) of the locking plate relative to the receiving interface, and at the relay (1): at least one fixed interface (9) positioned at an end of the relay (1) to cooperate with the cooperating interface of the translated locking plate.

Description

[Technical Field]

[0001] The present invention relates to the field of systems for mounting removable electromagnetic relays on circuit breakers, and in particular to the field of positioning and locking systems for removable electromagnetic relays on ACB circuit breakers. [Background technology]

[0002] Circuit breakers typically require the replacement of one or more magnetic relays as part of their maintenance work, especially if the circuit breaker must withstand overloads or overvoltages. Traditionally, replacing an electromagnetic relay, which generally has the form of a coil, involves disassembling one or more elements of the circuit breaker to gain access to the relay being replaced. Mounting the relay inside the circuit breaker also requires various fastening means, such as screws, to hold the relay securely in place. Therefore, as part of replacing the relay, the worker must disassemble the various screws that secure the relay to the circuit breaker structure.

[0003] However, such an operation has several drawbacks. In addition to the need for the operator to be equipped with tools for disassembling the relay, the various steps for removing the screws that make up the fastening means can be complicated. In fact, accessing the various screws and loosening them individually creates various constraints, which, when combined with the number of screws, lengthen the intervention time for the same circuit breaker. Furthermore, even if an electric screwdriver is available to make the operator's work easier, the operation must be carried out with some care. The screws that make up the fastening means are generally small and standardized, making them easy for the operator to lose. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to overcome these various drawbacks by proposing a solution that allows the relay to be easily replaced in a circuit breaker without the need for tools and without the risk of losing fixing elements, while maintaining easy positioning of the electromagnetic relay and optimal quality of its locking in the circuit breaker in which it is integrated. [Means for solving the problem]

[0005] The subject of the present invention is therefore a positioning and locking system for at least one detachable electromagnetic relay, such as a coil, on an ACB circuit breaker, one end of the relay carrying a connection interface adapted to come into contact with a corresponding interface of the circuit breaker, the locking system comprising at least: -By circuit breaker: a receiving interface having a substantially flat surface and including at least one through opening configured to receive a connecting interface of the relay; a locking plate positioned in a plane substantially parallel to the surface of the receiving interface, the locking plate comprising a first through-opening arranged opposite the through-opening of the receiving interface so that a connecting interface of the relay passes through it, and at least one second through-opening configured on the one hand for a fixing interface of the relay to pass through and coupled on the other hand to a cooperating interface with the fixing interface of the relay, the cooperating interface being positioned on the edge of the second through-opening in a part of the locking plate facing the receiving interface; a translation mechanism that translates the locking plate from a first position to a second position relative to the receiving interface along an axis contained in the plane of the locking plate, such that the cooperating interface in the second position occupies at least a portion of the space occupied by the second through opening in the first position; - in the relay: at least one fixing interface positioned at an end of the relay supporting a connection interface, the end of the fixing interface being provided with an enlarged portion supporting a locking surface configured to cooperate with a cooperating interface of the locking plate that is translated to a second position when the connection end of the relay is inserted through the receiving interface and the respective through-openings of the locking plate; The present invention is characterized by comprising:

[0006] The invention also relates to a locking method for implementing the system according to the invention, comprising the steps of: - positioning an end of a detachable electromagnetic relay, such as a coil, so that on the one hand the connection interfaces of the relay pass through the through-openings dedicated to the receiving interface and the locking plate and abut against the corresponding connection interfaces of the circuit breaker, and on the other hand at least one fixing interface passes through at least one second through-opening of the locking plate; - locking the relay onto the receiving interface by translating the locking plate from a first position to a second position relative to the receiving interface such that a cooperating interface of the locking plate is positioned against a locking surface of the fixed interface of the relay; The present invention is characterized by comprising:

[0007] The invention will be better understood on reading the following description of various preferred embodiments given as non-limiting examples and with reference to the accompanying drawings, in which: [Brief explanation of the drawings]

[0008] [Figure 1] 1 shows a schematic diagram illustrating an embodiment of a relay according to the present invention, with a connecting interface and a fixing interface at one end. [Figure 2] 2 shows a schematic view of an embodiment of the relay according to FIG. 1 in reverse; [Figure 3]1 shows a schematic diagram illustrating one embodiment of a locking plate and receiving interface for a system according to the present invention. [Figure 4] 1 shows a schematic diagram illustrating a detailed embodiment of a fixed interface for a relay according to the present invention; [Figure 5] 1 shows a schematic diagram illustrating a first step of an embodiment of placing a relay on a breaker in a system according to the invention. [Figure 6] 1 shows a schematic diagram illustrating a second step of an embodiment of placing a relay on a breaker in a system according to the invention. [Figure 7] 10 shows a schematic diagram illustrating a third step of an embodiment of placing a relay on a breaker in a system according to the invention. [Figure 8] 1 shows a schematic diagram illustrating a spring element intended to be attached to a locking plate according to the invention; [Figure 9] 1 shows a schematic cross-sectional view along a plane parallel to the plane of the locking plate and receiving interface when the relay is placed in a circuit breaker. [Figure 10] 1 shows a schematic cross-sectional view along a plane parallel to the plane of the locking plate and the receiving interface when the relay is locked to the circuit breaker. DETAILED DESCRIPTION OF THE INVENTION

[0009] The present invention relates to a positioning and locking system for at least one detachable electromagnetic relay 1, such as a coil, on an ACB circuit breaker 2, one end of the relay 1 carrying a connection interface 3 adapted to interface with a corresponding interface 4 of the circuit breaker, the locking system comprising at least: -On circuit breaker 2: a receiving interface 51 having a substantially flat surface and comprising at least one through-opening 6 adapted for the connection interface 3 of the relay 1 to pass through; a locking plate (52) positioned in a plane substantially parallel to the surface of the receiving interface (51), the locking plate (52) comprising a first through-opening (7) arranged opposite the through-opening (6) of the receiving interface (51) so that the connecting interface (3) of the relay (1) passes therethrough, and at least one second through-opening (8) arranged on the one hand for the fixing interface (9) of the relay (1) to pass therethrough and coupled to a cooperating interface (81) with the fixing interface (9) of the relay (1) on the other hand, the cooperating interface (81) being located on the edge of the second through-opening (8) in a part of the locking plate (52) facing the receiving interface (51); a translation mechanism 10 for translating the locking plate 52 relative to the receiving interface 51 from a first position to a second position along an axis contained in the plane of the locking plate 52, so that the cooperating interface 81 in the second position occupies at least a portion of the space occupied by the second through-opening 8 in the first position; - in the relay 1: at least one fixing interface 9 positioned at an end of the relay 1 supporting the connection interface 3, the end of this fixing interface 9 having an enlarged portion supporting a locking surface 93 configured to cooperate with a cooperating interface 81 of the locking plate 52 that is translated to a second position when the connecting end of the relay 1 is inserted through the respective through-openings 6, 7, 8 of the receiving interface 51 and the locking plate 52; The present invention is characterized by comprising:

[0010] This system of the invention therefore allows the user to position the relay 1 in the receiving interface 51 of the circuit breaker 2 in a simple manner by performing an insertion that approximately corresponds to a male / female connection. This connection is made together with respect to one or more fixing interfaces 9 of the relay 1, fixing the relay 1 to the circuit breaker 2 at the location of at least one connection interface 3 of the relay 1 and allowing the relay 1 to interact mechanically, electrically and magnetically with the circuit breaker 2. Such a male / female connection is therefore made, on the one hand, at the fixing interface 9 of the relay 1, which is inserted via the locking interface 52, and, on the other hand, at the connection interface 3 of the relay 1, which is inserted via both the locking interface 52 and the receiving interface 51.

[0011] The system of the present invention also allows for easy positioning of the relay 1 in the circuit breaker 2 by locking the fixed interface 9, inserted via the receiving interface 51 and the locking plate 52, by translating the locking plate 52 relative to the receiving interface 51. The unique configuration of the second through-opening 8 of the locking plate 52 allows insertion of the fixed interface 9 of the relay 1 in the first position. In the second translational position, the configuration of the second through-opening 8 allows blocking of the inserted fixed interface 9 by positioning the portion of the locking plate 52 that forms the cooperating interface 81, preventing the movement stroke of the portion of the fixed interface 9 formed by the locking portion 93. The fixed interface 9 is therefore prevented from translating along the insertion axis of the relay 1 into the circuit breaker 2 by its portion that forms the locking portion 93. According to one variant embodiment, inserting and positioning the connection interface 3 of the relay 1 via the receiving interface 51 contributes to preventing translation of the relay 1 in a plane perpendicular to the insertion axis of the relay 1. The connection interface 3 of the relay 1 cooperates with a complementary connection interface supported by the circuit breaker 2. This assembly helps prevent movement of the relay 1 in a plane perpendicular to the axis of insertion of the relay 1 .

[0012] According to a preferred configuration of the first through-opening 7 of the locking plate 52, this locking plate has a hole that is elongated relative to the hole of the through-opening 6 of the receiving interface 51. This elongated shape of the hole of the first through-opening 7 is arranged in the translation direction of the locking plate 52 so that the through-opening 6 of the receiving interface 51 is oriented along the axis of movement of the locking plate 52. Thus, at any position in the movement stroke of the locking plate 52, the entire surface of the through-opening 6 of the fixed, immovable receiving interface 51 is arranged opposite at least a portion of the first through-opening of the movable locking plate 52. This arrangement of the first through-opening 7 allows for axial translation of the locking plate 52, which is penetrated by the connection interface 3 of the relay 1, without the connection interface 3 restricting the translation of the locking plate 52.

[0013] It should be noted that according to the first preferred structural variant embodiment, the circuit breaker 2 is configured such that the locking plate 52 is positioned facing the connection interface 3 of the relay 1 between the connection interface 3 of the relay 1 and the receiving interface 51 of the circuit breaker.

[0014] According to a second structural variant embodiment, which is an alternative to the first structural variant embodiment set forth in the preceding paragraph, the circuit breaker 2 is configured such that the receiving interface 51 is positioned facing the connection interface 3 of the relay 1, between the connection interface 3 of the relay 1 and the locking plate 52 of the circuit breaker. According to this structural variant embodiment, the receiving interface 51 of the circuit breaker 2 comprises at least one second through-opening configured to be penetrated by the fixing interface 9 of the relay 1. This second through-opening is arranged in the receiving interface 51 such that, on the one hand, it is completely opposite the second through-opening 8 of the locking plate 52 when the fixing interface 9 of the relay 1 is inserted, and, on the other hand, it is partially blocked by the cooperating interface 81 of the locking plate 52 when the locking plate 52 is translated to its second position to block the fixing interface 9 of the relay 1 inserted in the circuit breaker 2.

[0015] According to one embodiment corresponding to a particular variant embodiment of the positioning and locking system according to the invention, the system is characterized in that the relay 1 comprises at least two fixing interfaces 9 arranged around the connection interface 3 at the end of the relay 1, and the locking plate 52 comprises at least two second through-openings 8 arranged to be penetrated by respective fixing interfaces 9. According to this particular embodiment, the locking of the relay 1 in the circuit breaker 2 is performed at at least two fixing points formed by each of the fixing interfaces 9. In addition to simplifying the positioning by inserting the relay 1 in the circuit breaker 2, this increase in the number of fixing points optimizes the assembly and fixing of the relay 1 to the circuit breaker 2. In that case, the mutual arrangement of the fixing interfaces 9 of the relay 1 is configured to engage with dedicated through-openings 8 supported by the locking plate 52.

[0016] According to one embodiment corresponding to another specific variant of the positioning and locking system according to the invention and combinable with the previous variants, the locking plate 52 comprises at least one second through-opening 8, the size of which is sufficient for two fixing interfaces 9 carried by two individual relays 1 arranged side-by-side in the circuit breaker 2 to pass through. According to this structural variant, the two relays 1 are arranged side-by-side with each other, with at least one fixing interface 9 of each relay 1 being in the vicinity of the fixing interface 9 of the juxtaposed relay 1. The juxtaposed relays 1 are positively positioned such that the individual fixing interfaces 9 are likewise juxtaposed and can co-interact with the blocking mechanisms of the relays 1 in the inserted position. The blocking locking mechanisms of the two relays 1 share the same through-opening 8, the size of which is sufficient for the fixing interfaces 9 of the two relays 1 arranged side-by-side in the circuit breaker 2 to pass through. According to one preferred configuration of this particular variant embodiment, the juxtaposed locking interfaces 9 have substantially the same arrangement and are arranged substantially parallel, whereby, as the locking plate translates, the locking surfaces 93 of each of the locking interfaces 9 are arranged to cooperate with two juxtaposed portions of the cooperating interface 81 of the locking plate 52.

[0017] According to one embodiment corresponding to another specific variant of the positioning and locking system according to the invention and combinable with the aforementioned variants, the cooperating interface 81 with the fixed interface 9 of the relay 1 is supported by at least one spring element 12 attached to the locking plate 52, which spring element 12 is configured to abut against a locking surface 93 and move the locking surface 93 of the fixed interface 9 of the relay 1 away from the locking plate 52. In the fully inserted state, a gap may exist between the locking plate 52 and the locking surface 93 of the fixed interface 9 of the relay 1. In this case, there may be play between the locking surface 93 and the locking plate 52, so that the inserted relay 1, blocked by the locking plate 52, can axially swing between the fully inserted position and the supporting position of the locking surface 93 against the surface of the locking plate 52. In this case, the spring element 12 is configured to be arranged between a portion of the surface of the locking plate 52 and the locking surface 93 of the fixed interface 9 of the relay 1. The spring element 12 is configured to exert pressure against the locking surface 93 in a direction that generally corresponds to the insertion direction of the fixed interface 9 of the relay 1 in the circuit breaker 2. Thus, with respect to the direction of pressure exerted by the spring element 12, the spring element pushes back the fixed interface 9 and the relay 1, maintaining the relay in a maximum insertion position on the circuit breaker 2. To that end, the spring element 12 is configured to exert a pressure on the fixed interface 9 that is at least equal to the pressure required to move the fixed interface 9 of the relay 1 to a maximum insertion state. By exerting pressure between the locking surface 93 of the relay 1 and the surface of the locking plate 52, the spring element 12 prevents the fixed interface 9 of the relay 1 from being inserted into the locking plate 52. 9 The spring element 12 limits or even eliminates the rocking of the relay 1 in the inserted state along the translation stroke blocked by the locking plate 52. As a result, the play of the fixed interface 9 inserted into the locking plate 52 is removed by the spring element 12, thereby locking the relay 1 in the circuit breaker 2 and stabilizing the relay 1 inserted and positioned in the circuit breaker 2.

[0018] According to one example corresponding to a specific variant embodiment of the spring element 12, the spring element 12 is formed from at least one curved blade 121 oriented so that the convex surface of the curved portion abuts the locking surface 93, and the intersection of the plane of the locking plate 52 and the curved surface of the blade 121 corresponds to the translation axis of the locking plate 52. Since the spring element 12 is mounted on the locking plate 52, it translates together with the locking plate 52. Thus, the spring element 12 moves against and exerts pressure on the locking surface 93 of the fixed interface 9 of the relay 1. The curved portion of the blade 121 forming the spring element 12 forms a deformable surface that can smoothly and gradually slide against the locking surface 93 of the fixed interface 9 of the relay 1 during translation of the locking plate 52, and can exert pressure against this locking surface 93 as the locking plate 52 translates.

[0019] According to one embodiment, which corresponds to another specific variant of the positioning and locking system according to the invention and which can be combined with the previous variants, the spring element 12 comprises at least one pair of parallel curved blades 121 connected at a common end 122, each of the blades 121 adapted to abut against a locking surface 93 of the fixed interface 9 of a respective relay 1. According to this structural variant, the spring element 12 is arranged in the second hole 8 of the locking plate 52, through which the fixed interfaces 9 of the two juxtaposed relays 1 pass, and is adapted to interact with each of the fixed interfaces 9, with each blade 121 abutting against the locking surface 93 of the respective fixed interface 9. According to a preferred configuration, the two blades 121 of the spring 12 are parallel to each other and oriented along an axis that corresponds approximately to the translation axis of the locking plate 52. In that case, each blade 121 can cooperate with the locking surface 93 by independently exerting pressure on the respective fixed interface 9.

[0020] According to one example implementation corresponding to another specific variant of the positioning and locking system according to the invention and combinable with the previous variants, at least one fixing interface 9 of the relay 1 is formed in the form of a tab, a first portion 91 of the tab being joined with the rest of the structure of the relay 1 and being arranged along the insertion axis of the fixing interface 9 through the locking plate 52, and a second portion 92 of the tab supporting a locking surface 93 for a cooperating interface 81 of the locking plate 52, the locking surface 93 being arranged along a plane perpendicular to the insertion axis of the fixing interface 9. According to one particular example implementation of this variant of the system, the first portion 91 and the second portion 92 of the tab of the fixing interface 9 are arranged relative to one another to form an "L" shape. The tab forming the fixing interface 9 thus has the shape of a hook, the locking surface 93 of which can prevent translation of the relay 1 on the circuit breaker 2 along the insertion axis by the locking plate 52 and its cooperating interface 81.

[0021] According to one embodiment corresponding to another specific variant of the positioning locking system according to the invention and combinable with the variants described above, the relay 1 has, at its end supporting the connection interface 3, a surface 31 arranged facing the surface of the circuit breaker 2, and this surface 31 of the relay 1 is provided with at least three non-aligned support points 13 protruding relative to the surface of the circuit breaker 2. Each of these support points 13 protrudes from the remainder of the surface 31 of the relay 1 so as to form an unevenness. The surface of the circuit breaker 2 therefore preferentially contacts the surface 31 at the ends of these various protruding support points 13. Therefore, the support points 13 of the surface 31 of the relay 1 contact the surface of the circuit breaker 2 when one or more fixing interfaces 9 of the relay 1 are positioned for maximum insertion into the circuit breaker 2. By forming the surface 31 with three non-aligned protruding support points 13, the positioning of the surface 31 of the relay 1 relative to the surface of the circuit breaker 2 can be stabilized when the relay 1 is fully inserted into the circuit breaker 2. According to one preferred variant of the inventive system, the surface of the circuit breaker 2 against which the protruding support point 13 is positioned is formed by the surface of the locking plate 52 opposite the surface that supports the cooperating interface 81 with the fixed interface 9. However, according to an alternative construction, the circuit breaker 2 comprises an intermediate surface that is arranged between the locking plate 52 and the end support surface 31 of the relay 1. This intermediate surface also comprises various openings configured to allow the connection interface 3 and the fixed interface 9 of the relay 1 to pass through, respectively. According to one particular example of this alternative construction variant, the intermediate surface against which the end surface 31 of the relay 1 is configured to abut is formed by the receiving interface 51 of the circuit breaker 2.

[0022] The invention also relates to a locking method implementing the system according to the invention, said method comprising the following steps: - positioning the ends of a detachable electromagnetic relay 1, such as a coil, so that on the one hand the connection interface 3 of the relay 1 passes through the dedicated through-openings 6, 7, 8 of the receiving interface 51 and the locking plate 52 and abuts on the connection interface 4, and on the other hand at least one fixing interface 9 passes through at least one second through-opening 8 of the locking plate 52; - locking the relay 1 to the receiving interface 51 by translating the locking plate 52 from a first position to a second position relative to the receiving interface 51 so that the cooperating interface 81 of the locking plate 52 is positioned against the locking surface 93 of the fixing interface 9 of the relay 1; The present invention is characterized by comprising:

[0023] According to one example corresponding to a particular variant embodiment of the locking method, if the system comprises a spring element 12, the method comprises positioning by inserting the spring element 12 in conjunction with the locking step between the locking plate 52 and the locking surface 93 of the fixed interface 9 of the relay 1.

[0024] Naturally, the invention is not limited to the embodiments described and shown in the accompanying drawings: various modifications are still possible, particularly in terms of the configuration of the various elements or by the substitution of equivalent techniques, without departing from the scope of protection of the invention.

Claims

1. 1. A system for positioning and locking at least one detachable electromagnetic relay (1), such as a coil, on an ACB type circuit breaker (2), one end of said relay (1) carrying a connection interface (3) adapted to interface with a corresponding interface (4) of the circuit breaker, said system comprising at least: - at said circuit breaker (2): a receiving interface (51) having a substantially flat surface and comprising at least one through opening (6) adapted to receive a connection interface (3) of said relay (1); a locking plate (52) positioned in a plane substantially parallel to the surface of the receiving interface (51), the locking plate (52) comprising: a first through-opening (7) arranged opposite the through-opening (6) of the receiving interface (51) so that the connection interface (3) of the relay (1) passes through; and at least one second through-opening (8) configured, on the one hand, for the fixing interface (9) of the relay (1) to pass through and, on the other hand, coupled to a cooperating interface (81) with the fixing interface (9) of the relay (1), the cooperating interface (81) being positioned on the edge of the second through-opening (8) in a part of the locking plate (52) facing the receiving interface (51); a translation mechanism (10) for translating the locking plate (52) relative to the receiving interface (51) from a first position to a second position along an axis contained in the plane of the locking plate (52), such that the cooperating interface (81) in the second position occupies at least a part of the space occupied by the second through-opening (8) in the first position; Including, - in said relay (1): at least one fixing interface (9) positioned at an end of said relay (1) supporting said connection interface (3), said end of said fixing interface (9) being provided with an enlarged portion supporting a locking surface (93) configured to cooperate with a cooperating interface (81) of said locking plate (52) that is translated into a second position when a connecting end of said relay (1) is inserted through said receiving interface (51) and the respective through-openings (6, 7, 8) of said locking plate (52); A system comprising:

2. 2. The system according to claim 1, wherein the relay (1) includes at least two fixing interfaces (9) arranged around the connection interface (3) at an end of the relay (1), and the locking plate (52) has at least two second through-openings (8) arranged so that each fixing interface (9) passes through.

3. 3. The system according to claim 1 or 2, characterized in that the locking plate (52) includes at least one second through-opening (8) large enough for two fixed interfaces (9) carried by two individual relays (1) positioned side-by-side on the circuit breaker (2) to pass through.

4. 2. The system according to claim 1, characterized in that a cooperating interface (81) cooperating with the fixed interface (9) of the relay (1) is supported by at least one spring element (12) attached to the locking plate (52), the spring element abutting against the locking surface (93) and configured to move the locking surface (93) of the fixed interface (9) of the relay (1) away from the locking plate (52).

5. 5. The system according to claim 4, wherein the spring element (12) is formed from at least one curved blade (121) oriented so that the convex surface of the curved portion abuts the locking surface (93), and the intersection of the plane of the locking plate (52) and the curved surface of the blade (121) corresponds to the translation axis of the locking plate (52).

6. 6. The system of claim 2 or 5, wherein the spring element (12) comprises at least one pair of blades (121) curved parallel to each other and connected at a common end (122), each of the blades (121) configured to abut against a locking surface (93) of the fixed interface (9) of a respective relay (1).

7. 2. The system according to claim 1, characterized in that the relay (1) has, at the end of the relay (1) that supports the connection interface (3), a face (31) that is arranged facing the surface of the circuit breaker (2), and this face (31) of the relay (1) comprises at least three non-aligned support points (13) that project relative to the surface of the circuit breaker (2).

8. 2. The system of claim 1, wherein at least one fixation interface (9) of the relay (1) is formed in the form of a tab, a first portion (91) of which joins with the rest of the structure of the relay and is arranged along an insertion axis of the fixation interface (9) through the locking plate (52), and a second portion (92) of the tab supports the locking surface (93) against a cooperating interface (81) of the locking plate (52), the locking surface (93) being arranged along a plane perpendicular to the insertion axis of the fixation interface (9).

9. 10. A locking method implementing the system of claim 1, said locking method comprising: - positioning an end of a detachable electromagnetic relay (1), such as a coil, so that on the one hand the connection interface (3) of said relay (1) passes through the through-openings (6, 7, 8) dedicated to said receiving interface (51) and to said locking plate (52) and abuts against the corresponding connection interface (4) of said circuit breaker (2), and on the other hand said at least one fixing interface (9) passes through at least one second through-opening (8) of said locking plate (52); - locking the relay (1) onto the receiving interface (51) by translating the locking plate (52) relative to the receiving interface (51) from a first position to a second position such that the cooperating interface (81) of the locking plate (52) is positioned against the locking surface (93) of the fixed interface (9) of the relay (1); A locking method comprising:

10. 10. The locking method according to claim 9, wherein the system includes at least one spring element attached to the locking plate, wherein a cooperating interface (81) cooperating with the fixed interface (9) of the relay (1) is supported by the at least one spring element (12), the spring element abutting against the locking surface (93) and configured to move the locking surface (93) of the fixed interface (9) of the relay (1) away from the locking plate (52), and wherein the locking method, together with the locking step, includes positioning by inserting the spring element (12) between the locking plate (52) and the locking surface (93) of the fixed interface (9) of the relay (1).

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