CN220585152U - Clamp spring structure of relay and relay module - Google Patents

Abstract

The utility model relates to the technical field of industrial control, in particular to a clamp spring structure of a relay and a relay module, wherein the module comprises the relay and a socket, the relay is inserted on the socket, the relay is connected with the socket through the clamp spring, and the clamp spring comprises two clamping parts, a pressing part and a connecting part; the connecting portion and the socket of jump ring are connected, and clamping part is pressed the relay from the relay both sides tightly, and the portion of compressing tightly presses the top at the relay to make relay and socket fixed connection, the portion of compressing tightly includes two sections of pushing down, and two section interval settings that push down, and two section of pushing down exist the difference in height, and the step operation mesa of relay includes mesa and lower mesa, and two sections of pushing down are used for pressing respectively on mesa and lower mesa. The two pressing sections have a certain height difference and are matched with the stepped operation table surface of the relay, so that assembly defects caused by suspension of one end, which is contacted with one end of the relay, of the clamp spring are avoided, and the stability of the installation of the relay is improved.

Description

Clamp spring structure of relay and relay module

Technical Field

The utility model relates to the technical field of industrial control, in particular to a clamp spring structure of a relay and a relay module.

Background

Currently, with the continuous perfection and development of the industrial level in China, the relay is widely applied to the fields of automatic electric control cabinets, industrial automation and the like.

The prior relay fastening clamp spring structure mainly comprises a crossing clamp spring as shown in fig. 1 and an arc clamp spring as shown in fig. 2, but the crossing clamp spring shields an operation knob of the relay, and the arc clamp spring has the defect of poor relative precision in manufacturing and production. If the operation platform plane has different steps, the two steps have common problems, and on the assembly of the uneven step surfaces, the contact of one end lifts the height of the clamp spring of the other section, so that the assembly defects of contact of one end and suspension of the other end are caused. The assembly defect causes that only one side of the relay is clamped and not reliably fixed, and the relay can fall off from the relay socket due to vibration and the like in the transportation and use processes, so that the use of the relay module is affected.

Disclosure of Invention

The utility model aims to provide a snap spring structure of a relay and a relay module, which are used for solving the problem that the existing snap spring structure has assembly defects under the condition that the relay has steps with different heights.

In order to achieve the above object, the present utility model provides a technical solution comprising: the clamping spring structure of the relay is elastic, and comprises two clamping parts arranged at the left side and the right side at intervals, a pressing part arranged between the two clamping parts and a connecting part arranged at the lower end of the clamping part;

the two clamping parts are used for being respectively arranged at the left side and the right side of the relay;

the connecting part is used for connecting with the socket so as to install the relay on the socket;

the compressing part is arranged at the upper end relative to the clamping part, the compressing part comprises two pressing sections, the two pressing sections are a first pressing section and a second pressing section which are respectively connected with the two clamping parts, and the first pressing section and the second pressing section have height differences in height.

According to the utility model, the two pressing sections are arranged on the pressing part and have a certain height difference, so that the relay with the height difference on the operating table top is adapted, the assembly defect caused by the fact that the clamp spring is in contact with one end of the relay and the other end of the relay is suspended is avoided, and the stability of the installation of the relay is improved.

In one embodiment, one side of the two clamping parts facing each other is taken as an inner side, one side of the two clamping parts facing each other is taken as an outer side, the pressing part further comprises an inward folded section which is formed by downwards and inwards folding from the upper end of at least one clamping part, the inward folded section comprises an outer end close to the clamping part and an inner end far away from the clamping part, and the inner end of the inward folded section is connected with a pressing section connected to the same clamping part, so that the first pressing section and/or the second pressing section are indirectly connected to the clamping part.

The inward folding section can provide downward pre-pressure for the downward pressing section, so that the downward pressing section further presses the relay.

In one embodiment, the invagination section is L-shaped.

The L-shaped inward folded section enables the pre-pressure provided by the L-shaped inward folded section to face to the right lower direction, so that the component of the pre-pressure in the vertical direction is increased, and the relay is more favorably pressed.

In one embodiment, the hold-down section is formed to extend in the front-rear direction with respect to the inner end of the inward folded section so that the hold-down section is for being disposed on the upper side of the relay.

The pushing section extends along the front-back direction so that the pushing section is closer to the edge of the top, so that a middle yielding space is formed, and the arrangement of the operating piece of the relay is facilitated.

In one embodiment, the end of the pressing section near the clamping part is a first end, the end of the pressing section far away from the clamping part is a second end, and the first end of the pressing section is higher than the second end, so that the pressing section has a slope.

Because the pushing section has a certain inclination, and the operation table surface of the relay is a plane, the pushing section is elastically deformed under the action of the relay, and the elastic force acts on the operation table surface of the relay to further improve the stability of the relay.

In one embodiment, after the snap spring is installed, an included angle between the installation surface of the pressing part and the clamping part is smaller than 90 degrees.

The arrangement enables the pressing part to apply downward pressing and forward acting force to the relay, the relay can be fastened, and the relay is prevented from falling off from the rear side.

In one embodiment, the clamp spring further comprises a side pressing part, wherein the side pressing part is arranged on one side of the pressing part, and the side pressing part is used for being arranged on the front side or the rear side of the relay.

The side pressure portion can press the relay from the front side or the rear side of the relay, and the shake of the relay along the front-rear direction is relieved, so that the stability of the relay is further improved.

In one embodiment, the side pressure part comprises two side pressure sections, the end part, close to the clamping part, of the lower pressure section is a first end, the end part, far away from the clamping part, of the lower pressure section is a second end, and the second end of the lower pressure section is bent downwards to form the side pressure section.

Side pressure sections are respectively formed on the left side and the right side of the clamp spring, so that pressing force is applied to the relay on the left side and the right side, and the stress on the two sides of the relay is balanced.

In one embodiment, the clip further comprises a handle portion disposed between the first hold-down section and the second hold-down section.

The setting handle portion can be with first section of pushing down and second section of pushing down be connected and make the jump ring form as an organic wholely on the one hand to connect two clamping parts indirection, fully press from both sides the relay tightly, and with compressing tightly portion combined action with the relay fixed.

In one embodiment, the handle part comprises a hand-held section, and two ends of the hand-held section are respectively connected with the lower ends of the two side pressing sections.

The handheld section sets up the lower tip at both sides pressure section, when the jump ring is installed on the relay, pushes down the inclination of section and makes the side pressure portion upwarp to make handheld section and relay form the gap, the dismouting of jump ring is convenient for through this gap.

When the side pressure section contacts with the top surface of the relay to press the relay, the side pressure section is tilted outwards relative to the relay, so that a gap exists between the hand-held section and the side surface of the relay, and the hand-held section is convenient to operate through the gap.

The technical scheme of the utility model also comprises the following steps: the utility model provides a relay module, includes relay and socket, and the relay is pegged graft on the socket, and the relay passes through above-mentioned jump ring structure with the socket connection, the jump ring connecting portion and socket connection, the jump ring structure the clamping part presss from both sides the relay clamp tightly from the relay both sides, the jump ring structure the clamping part presses the top at the relay to make relay and socket fixed connection.

The relay and the socket can be fixedly connected through the clamp spring, and the relay is prevented from falling off in the shaking process.

In one embodiment, an operating member is arranged on the top operating table surface of the relay, and the pressing part is arranged on the outer peripheral side of the operating member and is spaced from the operating member, so that the pressing part is prevented from affecting the operation of the operating member.

The compressing part of the clamp spring is arranged on the outer peripheral side of the operating piece and has a certain distance with the operating piece, so that the clamp spring can be prevented from mistakenly touching the operating piece to influence the normal work of the relay under the condition of shaking.

In one embodiment, the hold-down portion acts on the top surface of the relay, and the length of the hold-down portion is greater than half the length of the top surface of the relay.

The relay top is fully pressed and fixed by the arrangement, so that the fastening effect of the clamp spring installation is guaranteed.

In one embodiment, the relay is a time relay.

The utility model has the following beneficial effects:

1. the utility model provides a novel relay clamp spring structure, which is characterized in that the left side and the right side of the upper end of a clamp spring are bent in the front-back direction to form a pressing section, so that the clamp spring avoids an operation knob and a scale, and the problem of shielding the operation knob and the scale is solved.

2. The two pressing sections are respectively formed by extending from the two clamping parts, so that different heights can be flexibly selected, the problem that one side of the clamp spring is tightly matched firstly, the other side of the clamp spring is suspended, and the two ends cannot be tightly matched at the same time due to the size problem of manufacturing tolerance can be avoided; the two pressing sections of the utility model are respectively matched with the upper table top and the lower table top of the stepped operation table top of the relay, so that both sides of the clamp spring can be tightly matched with the relay, and the stability of the relay is improved.

3. The pressing section is designed with a certain inclination, pressing force is applied to the relay through the inclination clamp spring, tight fit of the relay and the clamp spring is achieved, the relay is prevented from falling off in the shaking process, and stability of the relay is further improved.

4. After the clamp spring is installed, the clamping part is obliquely arranged, so that the pressing section applies downward and forward force to the relay, and the relay is prevented from falling off from the rear side.

5. The length of the pressing part is greater than half of the length of the top of the relay, so that the top of the relay is fully stressed, side turnover of the relay can be avoided, and the fastening effect of the clamp spring installation is ensured.

Drawings

Fig. 1 is a prior art cross-over clip configuration.

Fig. 2 is a prior art arc-shaped snap spring structure.

Fig. 3 is a perspective view of the snap spring structure of embodiment 1 of the present utility model.

Fig. 4 is a side view of the snap spring structure of embodiment 1 of the present utility model.

Fig. 5 is a front view of the snap spring structure of embodiment 1 of the present utility model.

Fig. 6 is a perspective view of the snap spring structure of embodiment 2 of the present utility model.

Fig. 7 is a perspective view of the snap spring structure of embodiment 3 of the present utility model.

Fig. 8 is a structural diagram of a relay module according to embodiment 4 of the present utility model without a snap spring.

Fig. 9 is a structural view of a snap spring according to embodiment 1 of the relay module mounting embodiment 4 of the present utility model.

Fig. 10 is a left side view of the snap spring of the relay module mounting example 1 of the embodiment 4 of the present utility model.

Wherein: 100 jump ring, 110 clamping part, 111 clamping section, 112 inner buckle section, 120 clamping part, 121 first section of pushing down, 122 second section of pushing down, 123 inner fold section, 1231 inner extension section, 1232 lower extension section, 130 connecting portion, 131 hook portion, 140 side pressure portion, 141 side pressure section, 150 hand-held portion, 151 hand-held portion, 200 relay, 201 upper mesa, 202 lower mesa, 210 operating element, 220 display panel, 300 socket, 301 connecting hole, A difference in height, B first contained angle, C second contained angle.

Detailed Description

For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present utility model. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.

Example 1

Referring to fig. 3 to 5 and 9, as an embodiment of the present utility model, there is provided a snap spring structure of a relay, in which a snap spring 100 has elasticity, and the snap spring 100 includes two clamping portions 110 disposed at left and right sides at intervals, a pressing portion 120 disposed between the two clamping portions 110, and a connection portion 130 disposed at a lower end of the clamping portion 110. The two clamping portions 110 are respectively disposed at left and right sides of the relay 200, the pressing portion 120 is disposed at an upper end with respect to the clamping portion 110 and is located at a top end of the relay 200, the connecting portion 130 is disposed at a lower end with respect to the clamping portion 110, and the connecting portion 130 is configured to be connected with the socket 300 so as to cooperate with the clamping portion 110 and the pressing portion 120 to fix the relay 200 to the socket 300.

Referring to fig. 3 to 5, the clamping part 110 includes a clamping section 111 extending in an up-down direction and an inner fastening section 112, and a lower end of the clamping section 111 is bent at an angle toward the other clamping part 110 to form the inner fastening section 112. When the two clamping portions 110 of the snap spring 100 are respectively arranged at the left side and the right side of the relay 200 to clamp the relay 200, the inner buckling sections 112 are outwards spread and deformed under the elastic action and apply pressure to the side surface of the relay 200, so that the two inner buckling sections 112 jointly act to further clamp the relay 200 from the side surface of the relay 200. The angle formed by the clamping section 111 and the inner buckling section 112 is an obtuse angle, so that the bending amplitude of the inner buckling section 112 is smaller, the contact range between the clamping part 110 and the relay 200 is enlarged as much as possible while the pressure is applied to the side surface of the relay 200, and the connection reliability of the clamp spring 100 and the relay 200 is improved.

Referring to fig. 3 to 5, the pressing portion 120 includes two pressing sections, which are a first pressing section 121 and a second pressing section 122 respectively connected to the two clamping portions 110, and the first pressing section 121 and the second pressing section 122 have a height difference. In order to use the compression spring for operating the relay 200 having a height difference in the stages, the first and second pressing sections 121 and 122 are pressed against the upper and lower stages 201 and 202 of the relay, respectively. With the sides of the two clamping portions facing each other as the inner side and the sides of the two clamping portions facing each other as the outer sides, the pressing portion 120 includes two L-shaped folded-in sections 123 formed by bending downward and inward from the upper end of one clamping portion 110, specifically, the upper end portions of the clamping sections 111 of the two clamping portions 110 are respectively bent toward the other clamping portion 111 to form two opposite folded-in sections 123. The inner folded section 123 includes an outer end near the clamping portion 110 and an inner end far from the clamping portion 110, and in particular, the outer end of the inner folded section 123 is connected with the clamping section 111 of the clamping portion 110. The first pressing section 121 and the second pressing section 122 are respectively formed to extend in the front-rear direction with respect to the inner end of an inward folded section 123, so that the first pressing section 121 and the second pressing section 122 are respectively and indirectly connected to a clamping portion 110. Further, the first pressing section 121 and the second pressing section 122 are disposed at intervals, the first pressing section 121 and the second pressing section 122 are different in height at the same position in the front-rear direction, so that a height difference a of the two pressing sections 122 is formed, the step-type operation table top of the relay 200 comprises an upper table top 201 and a lower table top 202, the height difference between the upper table top 201 and the lower table top 202 forms a step, and the two pressing sections 122 are respectively used for pressing on the upper table top 201 and the lower table top 202.

In this example, the "L" -shaped folded-in section 123 includes an inner extension section 1231 and a lower extension section 1232, and since the two clamping portions 110 are disposed on two sides of the relay 200, the inner extension section 1231 can make the first pressing-down section 121 and the second pressing-down section 122 actually act on the top of the relay 200, so as to improve the pressing effect on the relay 200. The lower extension 1232 can bear the upward force generated by the shake of the relay 200, thereby preventing the inner extension 1231 from being deformed by directly bearing the upward force, maintaining the shape of the snap spring, applying downward pressure to the relay 200, and improving the assembly stability of the relay 200.

In other embodiments, the inner folded section 123 may be linear, where the downward force generated by the inner folded section 123 is a component force along the extending direction of the inner folded section 123, and may be divided into an inward direction and a downward direction, and the downward component force acts on the top of the relay 200 to further compress the relay 200.

It should be noted that: the inner folded sections 123 are not necessary, and the inner folded sections 123 function to increase the pressing force applied by the pressing portion 120 to the top of the relay, so as to further press the relay 200, so that the inner folded sections 123 may be one (i.e., the inner folded sections 123 are arranged between one of the pressing sections and the pressing portion), or two (i.e., the inner folded sections 123 are arranged between two pressing sections and the pressing portion), or no inner folded sections 123 may be provided (i.e., the two pressing sections are directly connected to the pressing portion). If there is no inward folded section 123, the pressing sections are directly connected to a clamping portion 110, and the pressing sections and the relay are directly connected, because the two clamping portions 110 are disposed on two sides of the relay 200, in order to make the pressing sections actually act on the top of the relay 200, the first pressing section 121 and the second pressing section 122 should be disposed obliquely toward each other, that is, the first pressing section 121 and the second pressing section 122 are also disposed obliquely toward the inner side on the basis of extending toward the front-rear direction, so that the first pressing section 121 and the second pressing section 122 actually act on the top of the relay 200. The elimination of the inner folded section 123 has the advantage of simplifying the structure of the snap spring and simplifying the manufacturing process of the snap spring.

Referring to fig. 4 and 9, the first pressing section 121 and the second pressing section 122 are provided with a slope, and the second pressing section 122 is taken as an example for explanation, and the first end of the second pressing section 122 is higher than the second end, so that the second pressing section 122 has a slope, the second pressing section 122 forms a first included angle B smaller than 90 ° with the clamping section, and by means of the slope, the second pressing section 122 can apply a pressing force to the relay 200, thereby realizing tight fitting of the snap spring 100 and the relay 200. Specifically, since the second pressing section 122 has a certain inclination and the operation table surface of the relay 200 is a plane, the second pressing section 122 is elastically deformed under the action of the relay 200, and the elastic force acts on the operation table surface of the relay 200, so that the stability of the relay 200 can be further improved. Referring to fig. 3 and 4, in this example, the first end of the second pressing section 122 is located behind the second end. In other embodiments, it is also possible that the first end of the second hold-down section 122 is located forward of the second end. The structure of the first push-down section 121 is the same as that of the second push-down section 122, and the inclination of the first push-down section 121 will not be described in detail herein.

Referring to fig. 10, when the clip spring is mounted to the relay 200, the pressing portion 120 is obliquely disposed at a side of the relay 200, specifically: the contact surface between the pressing part 120 of the clamp spring 100 and the relay 200 is the mounting surface of the pressing part 120, the included angle formed by the mounting surface and the clamping part 110 is a second included angle C, and the second included angle C is smaller than 90 °, so that the pressing part 120 applies a forward and downward force to the relay 200, more specifically, the first ends of the two pressing sections of the pressing part 120 apply a forward and downward force to the relay 200, and the relay 200 is prevented from falling off from the rear side.

Referring to fig. 3-5, the clip spring 100 further includes a lateral pressing portion 140, where the lateral pressing portion 140 is disposed on one side of the pressing portion 120, and the lateral pressing portion 140 is disposed on a front side or a rear side of the relay 200. Specifically, the side pressure part 140 includes two side pressure sections 141, and the side pressure sections 141 are formed by bending downward from the second ends of the lower pressure sections. In this example, the second end of the pressing section is disposed in front of the first end, and thus the side pressure portion 140 is disposed on the front side of the relay 200. Because the first end of the pushing section is higher than the second end, when the jump ring 100 is mounted on the relay 200, the deformation of the second end is greater than that of the first end, so as to reduce the deformation of the second end, the jump ring 100 gradually moves along the direction from the second end to the first end in the process of shaking, and in the long run, the jump ring 100 has a risk of falling off from the relay 200. The presence of the side pressure portion 140 prevents the snap spring 100 from falling off the relay 200 after the snap spring is mounted on the relay 200 in the movement tendency.

The stress of the relay 200 is opposite to that of the jump ring 100, and the relay 200 gradually moves along the direction from the first end to the second end in the process of being subjected to the shake, so that the relay 200 is at risk of falling off from the front side. In addition, since the pressing part 120 has downward and forward force components to the top surface of the relay 200, the mating side pressing part 140 blocks the relay from falling off from the front side, thereby achieving relay fastening.

Referring to fig. 3-5, the clip spring 100 further includes a handle portion 150, where the handle portion 150 includes a holding section 151, specifically, a holding section 151 is disposed between the two side pressing sections 141, and two ends of the holding section 151 are connected to the lower ends of the two side pressing sections 141. Because the included angle between the pressing section and the side pressing section is an obtuse angle greater than 90 degrees, after the clamping spring 100 is mounted on the relay 200 (fig. 10), the pressing section is matched with the top surface of the relay 200, and the side pressing section 141 is tilted upward and forward relative to the relay 200, and a certain gap exists between the hand holding section 151 and the side surface of the relay 200 due to the tilting, so that a hand or a tool can be inserted into the gap, and the operation of the pressure spring 100 is facilitated by holding the hand holding section 151 in the process of dismounting the pressure spring 100.

It should be noted that, since the obtuse angle between the pressing section and the side pressing section is only slightly larger than 90 °, and there is a certain deformation after the pressing section is mounted on the relay 200, a right angle of 90 ° may be formed between the side pressing section 141 and the mounting surface of the pressing portion 120, and the side pressing section 141 and the hand-held section 151 are attached to the side of the relay 200 together to form a blocking for the front side of the relay 200.

Referring to fig. 3, 5 and 9, the connecting portion 130 is a hook portion 131 disposed at the lower end of the clamping portion 120, the lower end of the inner fastening section 112 is bent toward the other clamping portion 110 to form the hook portion 131, and the hook portion 131 is used for connecting with the socket 300 so as to connect the relay 200 with the socket 300. The connection operation of the hook part is simple, the hook part is not easy to fall off, and the assembly and disassembly are quicker by utilizing the elasticity of the clamp spring 100.

Further, the included angle between the hook 131 and the inner fastening section 112 is not greater than 90 °, and since the inner fastening section 112 is bent inwards, the hook 131 can be tilted upwards by a certain angle, so as to avoid the hook 131 from falling out of the socket 300.

Referring to fig. 3, in this example, the clip spring is formed by bending a strip metal member with a circular cross section, so that the clamping portion 110, the compressing portion 120 and the connecting portion 130 of the clip spring 100 are integrally formed, the strength and toughness of the clip spring 200 can be increased by the integrally formed structure, and the clip spring 200 can bear larger elastic deformation and is not easy to damage.

In other embodiments, the cross-sectional shape of clip spring 100 is not limited to circular, but may be elliptical, semi-circular, rectangular, or other polygonal shape. The contact area between the clamp spring 100 and the relay can be increased by semicircular, rectangular or other polygons relative to the circle, so that the force of the clamping part 110 on the relay 200 is increased, but the metal piece with the semicircular cross section is required to control the bending direction when being bent, so that the plane is in surface contact with the surface of the relay 200. The contact area of the circular shape and the relay is the same in any direction, so that the direction is not required to be considered during bending, the bending process can be simplified, and the manufacturing difficulty of the clamp spring 100 can be reduced. Because the clamping part 110 and the relay 200 can only be in line contact, the force of the clamping part 110 to the relay 200 can be weakened to a certain extent, but the clamping spring 100 mainly applies a downward force to the relay 200 by the pressing part 120, so that the influence of the clamping part 110 is small, and the embodiment (with a circular cross section) is an optimal scheme after comprehensive consideration.

Example 2

Referring to fig. 6, unlike embodiment 1, the following is adopted: in order to avoid the jump ring from the relay 200 during the shake process, the two clamping portions 110 of the jump ring 100 should be connected, so the hand-held section 151 formed into the hand-held portion 150 is disposed between the two pressing sections, two ends of the hand-held section 151 are respectively connected with the first pressing section 121 and the second pressing section 122, so that the first pressing section 121 and the second pressing section 122 form an integral structure, and the jump ring structure is further connected into an integral body, so that the pressing portion 120 and the clamping portion 110 jointly form a pressing force on the top of the relay 200. In addition, in order to adapt to the situation that the operation table surface of the relay has a height difference, the handheld section 151 may be a fold line shape adapted to the height difference, may be an arc shape that arches upward to be higher than the operation table surface, or may be another structure that does not affect the pressing of the pressing portion 120 on the relay and can connect the clamp springs into a whole.

Example 3

Referring to fig. 7, unlike embodiment 1, the following is adopted: the present embodiment does not have the side pressing part 140 and the handle part 150, so that the first and second pressing sections 121 and 122 are separated, and the socket is hooked by the connection part 130 of the lower end of the snap spring structure, and the pressing part 120 of the upper end presses the top of the relay 200, thereby fixing the relay against falling due to shaking. In order to move the clip spring 100 in a direction away from the relay 200 against the elastic force of the clamping portion 110, a connection structure may be provided at the outer circumferential side of the relay 200 to maintain the clip spring in connection with the relay, wherein the connection structure may be a band or a clip.

Example 4

Referring to fig. 8 and 9, the present utility model further provides a relay module, including a relay 200 and a socket 300, wherein the relay 200 is plugged into the socket 300, the relay 200 is connected to the socket 300 through a clip spring 100, the clip spring 100 is a clip spring according to any one of embodiments 1 to 3, the connection portion 130 of the clip spring 100 is connected to the socket 300, the clamping portion 110 of the clip spring 100 clamps the relay 200 from two sides of the relay 200, and the pressing portion 120 of the clip spring 100 presses on the top of the relay 200, so that the relay 200 is fixedly connected to the socket 300.

The socket 300 is provided with connection holes 301, and the connection holes 301 are located at both sides with respect to the relay 200 with a certain distance from the relay 200. The hook portion 131 of the snap spring 100 is inserted into the connection hole 301 of the socket 300 to form a fixed connection with the socket 300. The clamping portion 110 of the clip spring 100 is deformed outwardly and applies elastic force to the left and right sides of the relay 200, thereby clamping the relay 200. The pressing part 120 of the snap spring 100 applies a pressing force to the top of the relay 200, thereby fixedly connecting the relay 200 with the socket 300, preventing the relay 200 from falling off during shaking.

Referring to fig. 8 and 9, the relay 200 is a time relay, an operation member 210 is provided on a top operation table of the relay 200, and the operation member 210 is a mechanical knob, so that the relay is more likely to be erroneously operated due to mechanical impact during vibration. The pressing portion 120 is disposed at an outer circumferential side of the operation piece 210 with a certain distance from the operation piece 210, thereby preventing the pressing portion 120 from affecting the operation of the operation piece 210. The top operation table surface of the relay 200 is also provided with a display panel 220, scales are arranged on the display panel 220, and the pressing part 120 is arranged avoiding the display panel 220, so that the influence of the pressing part 120 on the reading due to the shielding of the scales of the display panel 220 is avoided.

Referring to fig. 4, 8 and 9, specifically, an upper table 201 and a lower table 202 are provided on an operation table of the relay 200, the upper table 201 and the lower table 202 are different in height to form steps, two pressing sections of the snap spring 100 are respectively pressed on the upper table 201 and the lower table 202, and a height difference a between the first pressing section 121 and the second pressing section 122 of the snap spring 100 is equal to a step height between the upper table 201 and the lower table 202, so that the first pressing section 121 and the second pressing section 122 apply equal pressing forces to the upper table 201 and the lower table 202. The two pressing sections are in tight fit with the operation table surface of the relay 200 at the same time, so that two sides of the clamp spring 100 can be in tight fit with the relay 200, and stability of the relay 200 is improved.

The operating member 210 of the relay 200 is disposed on the lower table 202 at a substantially central position of the operating table of the relay 200, and the display panel 220 is disposed on the upper table 201 at one side of the operating member 210. The second pressing section 122 is located at a side of the operating member 210 away from the display panel 220, and the first pressing section 121 is located at a side of the display panel 220 away from the operating member 210, so that the two pressing sections avoid the operating member 210 and the display panel 220.

The inner folded section 123 is disposed at the first end of the pressing section and is higher than the operation table, so that the inner folded section 123 does not affect the operation member 210 when neither the first pressing section 121 nor the second pressing section 122 contacts the operation member 210. Therefore, the two pressing sections are spaced apart from each other on both sides of the operating member 210 of the relay 200, so that the pressing portion 120 of the clip spring 100 can prevent the operating member 210 from being touched by mistake under the condition of shaking, thereby preventing the relay 200 from operating normally.

In addition, the first end of the pressing section is higher than the second end, so that the pressing section forms a certain inclination, when the pressing section is matched with the top surface of the relay, the clamping part can incline forwards from top to bottom and forms an included angle smaller than 90 degrees with the top surface of the relay, and therefore the first end of the pressing section forms downward and forward pre-pressing force on the relay 200, on one hand, the relay 200 can be pressed down on the socket 300, and on the other hand, the relay 200 can be prevented from falling backwards. In addition, since the pressing portion is obliquely provided with downward and forward force components, the mating side pressing portion blocks the relay 200 from falling forward, improving the reliability of the connection of the relay 200 with the socket 300. The specific value of the first included angle B formed by the pressing section and the clamping section can be obtained by a person skilled in the art through limited experiments according to the size and the installation requirement of the relay 200, and will not be described here again.

The length of the pressing section should be greater than half of the width of the top surface of the relay in the front-rear direction, so as to cover the center of gravity of the relay, and the relay 200 is pressed down on the socket 300 practically, so that the fastening fit of the pressing part and the top surface is further ensured, and the falling is prevented.

Referring to fig. 9, since the hold-down section has a certain inclination, when the clip spring 100 is mounted on the relay module, the hold-down section elastically deforms to make the second end of the hold-down section tilt upward, so that the handle portion 150 described in embodiment 1 tilts slightly forward and upward to be away from the side of the relay 200 by a certain distance, that is, a certain distance is generated between the hand-held section 151 and the relay 200, so that the hand-held section 151 is convenient to hold, and the clip spring 100 is convenient to detach from the relay module through the handle portion 150. In addition to directly holding the hand-held segment 151 with a hand, since there is a certain gap between the hand-held segment 151 and the relay 200, a tool can be inserted into the gap between the hand-held segment 151 and the relay 200 to pry up the hand-held portion 150, thereby making the disassembly of the clip spring 100 simpler.

In the utility model, a time relay is taken as an example, and other relays with height differences on the top surface besides the time relay can be connected through the clamp spring structure.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (13)

1. The clamping spring structure of the relay is elastic, and comprises two clamping parts arranged at the left side and the right side at intervals, a pressing part arranged between the two clamping parts and a connecting part arranged at the lower end of the clamping part;

the two clamping parts are used for being respectively arranged at the left side and the right side of the relay;

the connecting part is used for connecting with the socket so as to install the relay on the socket;

the compressing part is arranged at the upper end relative to the clamping part, and is characterized in that the compressing part comprises two pressing sections, the two pressing sections are a first pressing section and a second pressing section which are respectively connected to the two clamping parts, and the first pressing section and the second pressing section have height differences in height.

2. The snap spring structure of claim 1, wherein the two clamping portions are disposed on the inner side of one side facing each other and the two clamping portions are disposed on the outer side of the other side facing each other, the pressing portion further comprises an inward folded section formed by bending downward and inward from the upper end of at least one clamping portion, the inward folded section comprises an outer end close to the clamping portion and an inner end far away from the clamping portion, and the inner end of the inward folded section is connected with a pressing section connected to the same clamping portion, so that the first pressing section and/or the second pressing section are indirectly connected to the clamping portion.

3. The snap spring structure of a relay according to claim 2, wherein said inner folded section is "L" -shaped; the hold-down section is formed to extend in the front-rear direction with respect to the inner end of the inward folded section so that the hold-down section is for being disposed on the upper side of the relay.

4. The snap spring structure of claim 1, wherein the end of the hold-down section near the clamping portion is a first end, the end of the hold-down section far away from the clamping portion is a second end, and the first end of the hold-down section is higher than the second end, so that the hold-down section has a slope.

5. The snap spring structure of claim 1, wherein an included angle between a mounting surface of the pressing portion and the clamping portion is smaller than 90 ° after the snap spring is mounted.

6. The snap spring structure of claim 1, wherein the snap spring further comprises a side pressing portion, the side pressing portion is disposed on one side of the pressing portion, and the side pressing portion is disposed on a front side or a rear side of the relay.

7. The spring clip structure of claim 6, wherein the side pressure portion comprises two side pressure segments, the end of the lower pressure segment near the clamping portion is a first end, the end of the lower pressure segment far away from the clamping portion is a second end, and the second end of the lower pressure segment is bent downwards to form the side pressure segment.

8. The latch spring structure of claim 1, wherein said latch spring further includes a handle portion disposed between the first hold-down section and the second hold-down section.

9. The clamp spring structure of the relay according to claim 8, wherein the clamp spring further comprises a side pressing part, the side pressing part comprises two side pressing sections, the end, close to the clamping part, of the lower pressing section is a first end, the end, far away from the clamping part, of the lower pressing section is a second end, and the second end of the lower pressing section is bent downwards to form the side pressing section; the handle part comprises a hand-held section, and two ends of the hand-held section are respectively connected with the lower ends of the pressing sections on two sides.

10. The utility model provides a relay module, includes relay and socket, and the relay is pegged graft on the socket, its characterized in that, relay and socket pass through any of claims 1-9 jump ring structure is connected, the connecting portion of jump ring is connected with the socket, the jump ring structure press from both sides the relay tightly to clamp the portion from the relay both sides, the jump ring structure press the portion of compressing tightly at the top of relay to make relay and socket fixed connection.

11. The relay module according to claim 10, wherein the top operation table of the relay is provided with an operation member, and the pressing portion is provided on an outer peripheral side of the operation member with a certain distance from the operation member, thereby preventing the pressing portion from affecting the operation of the operation member.

12. A relay module according to claim 10, wherein the hold-down portion acts on the top surface of the relay, the hold-down portion having a length greater than half the length of the top surface of the relay.

13. A relay module according to any of claims 10-12, wherein the relay is a time relay.