CN206480570U - A kind of shield for electrothermal relay - Google Patents
A kind of shield for electrothermal relay Download PDFInfo
- Publication number
- CN206480570U CN206480570U CN201720169907.XU CN201720169907U CN206480570U CN 206480570 U CN206480570 U CN 206480570U CN 201720169907 U CN201720169907 U CN 201720169907U CN 206480570 U CN206480570 U CN 206480570U
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- Prior art keywords
- shield
- electrothermal relay
- buckle
- bottom plate
- top cover
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Abstract
The utility model is related to a kind of shield for electrothermal relay, the electrothermal relay is provided with 3 switch grooves, the shield includes integrally formed top cover and foreboard, top cover and the foreboard vertical distribution, the rear end of the top cover is provided with 3 pairs with switching the snap fits that groove inwall matches provided with 3 buckles for switching connection at the top of groove with electrothermal relay, the bottom of the foreboard.Compared with prior art, shield only one of which part of the present utility model, so as to reduce the management of material；Meanwhile, by the setting of buckle and snap fit, employee is also more simple and convenient in assembling process, while also saving cost.
Description
Technical field
The utility model is related to electrothermal relay technical field, and in particular to a kind of shield for electrothermal relay.
Background technology
The operation principle of electrothermal relay is to produce heat by the electric current of inflow thermal element, makes the double gold for having the different coefficients of expansion
Category piece is deformed upon, when deformation reaches certain distance, is just promoted connecting rod action, is disconnected control circuit, so that contactor
Dead electricity, main circuit disconnects, and realizes the overload protection of motor.Relay as motor overload protection element, with its volume
Small, simple in construction, low cost and other advantages are widely applied in production.
In order to protect the internal structure of electrothermal relay, while avoiding the charged structures inside human contact's electrothermal relay, all
A shield can be set in the outside of electrothermal relay.Electrothermal relay typically all has 3 switch grooves, is placed in each switch groove
There is bimetal leaf, heater element is then wound on bimetal leaf, shield is arranged on top and the lateral wall of switch groove.It is existing
Shield includes two kinds, a kind of top for being used to cover switch groove, a kind of lateral wall for being used to cover switch groove, right latter two shield
Mutual clamping, forms complete electrothermal relay shield.But, such structure is complex, with two kinds of parts, and installs
Inconvenience, can influence the production efficiency of electrothermal relay.
Utility model content
The purpose of this utility model be exactly in order to overcome defect that above-mentioned prior art is present and provide it is a kind of it is integrated,
Shield for electrothermal relay easy for installation.
The purpose of this utility model can be achieved through the following technical solutions：A kind of shield for electrothermal relay, institute
Electrothermal relay is stated provided with 3 switch grooves, the shield includes integrally formed top cover and foreboard, and the top cover and foreboard vertically divide
Cloth, the rear end of the top cover is provided with 3 buckles for being used to switch connection at the top of groove with electrothermal relay, and the bottom of the foreboard is provided with
3 pairs with switching the snap fit that groove inwall matches.Top cover and foreboard are integrally formed by shield of the present utility model, so whole shield
Cover only one of which part, reduces the management of material；And by buckle and snap fit, operating personnel can be very easily by shield
In the switch groove for snapping fit onto electrothermal relay.
Described buckle includes bottom plate and the buckle with bottom plate arrangement at an acute angle, and the lower surface of the bottom plate and top cover is neat
Flat, the bottom plate and buckle are integrally formed.The bottom plate and buckle are plastic products, so with certain elasticity.
Angle between described bottom plate and buckle is 20~40 °.
The top of the switch groove is provided with cylindricality through hole, and the width of the through hole and the width of bottom plate match, the height of through hole
Degree is less than the distance between buckle afterbody and bottom plate.When mounted, one end bottom plate and buckle connected is moved into through hole, directly
Base to bottom plate and through hole is in contact, and is in contact, continues to move at the top of the top of buckle and through hole, and bottom plate and buckle can quilts
Compression, until buckle passes completely through the through hole, buckle can restore to the original state in the presence of elasticity, now bottom plate still with through hole
Bottom connection is touched, but the afterbody of buckle can prop up the upper limb of through hole, so that by buckle clamping in through-holes.
Snap fit described in each pair includes two vertical and parallel straight panels and is arranged on the outside of two pieces of straight panels and to extending out
Distance between the wedge of exhibition, two pieces of straight panels matches with switching the distance between groove inwall.
The inwall of each switch groove is provided with two projections being oppositely arranged.The clamping principle of snap fit is similar with buckle, cardboard
It can be compressed between wedge, during forward movement, two wedges are in close contact with projection and constantly pressed
Contracting, after wedge fully passes over projection, wedge restores to the original state, now straight panel and projection contacts, and two wedges are blocked by projection
Firmly, so as to ensure that the clamping of snap fit and switch groove.
The top cover is provided with 3 wiring holes, and the position of each wiring hole is corresponding with a switch groove.
Compared with prior art, the beneficial effects of the utility model are embodied in：Shield only one of which zero of the present utility model
Part, so as to reduce the management of material；Meanwhile, by the setting of buckle and snap fit, employee is also more simple in assembling process
It is convenient, while also saving cost.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model shield；
Fig. 2 is the backsight structural representation of a-quadrant in Fig. 1；
Fig. 3 is the backsight structural representation in B regions in Fig. 1；
Fig. 4 is the structural representation that the utility model electrothermal relay switchs groove.
Wherein, 1 is top cover, and 11 be buckle, and 12 be bottom plate, and 13 be buckle, and 14 be wiring hole, and 2 be foreboard, and 21 be snap fit,
22 be straight panel, and 23 be wedge, and 3 be switch groove, and 31 be through hole, and 32 be projection.
Embodiment
Embodiment of the present utility model is elaborated below, the present embodiment using technical solutions of the utility model before
Put and implemented, give detailed embodiment and specific operating process, but protection domain of the present utility model is not limited
In following embodiments.
Embodiment 1
A kind of shield for electrothermal relay, including integrally formed top cover 1 and foreboard 2, top cover 1 and foreboard 2 vertically divide
Cloth, the rear end of top cover 1 is provided with 3 buckles 11 for being used to switch connection at the top of groove with electrothermal relay, and the bottom of foreboard 2 is provided with 3 pairs
The snap fit 21 matched with the switch inwall of groove 3, as shown in figure 1, top cover 1 is provided with 3 wiring holes 14, the position of each wiring hole 14
Put corresponding with a switch groove 3.
Buckle 11 includes bottom plate 12 and is in 30 ° of buckles 13 arranged with bottom plate 12, and the lower surface of bottom plate 12 and top cover 1 is neat
Flat, bottom plate 12 and buckle 13 are integrally formed.The bottom plate 12 and buckle 13 are plastic products, so with certain elasticity.Such as
Shown in Fig. 2.
Each pair snap fit 21 includes two vertical and parallel straight panels 22 and is arranged on the outside of two pieces of straight panels 22 and to extending out
Distance between the wedge 23 of exhibition, two pieces of straight panels 22 matches with switching the distance between inwall of groove 3, as shown in Figure 3.
The structure of groove 3 is switched as shown in figure 4, the top of switch groove 3 is provided with cylindricality through hole 31, the width of the through hole 31 and bottom
The width of plate 12 matches, and the height of through hole 31 is less than the distance between the afterbody of buckle 13 and bottom plate 12.When mounted, by bottom plate
12 and the one end that connects of buckle 13 moved into through hole 31, until the base of bottom plate 12 and through hole 31 is in contact, the top of buckle 13
Portion and the top of through hole 31 are in contact, and continue to move to, and bottom plate 12 and buckle 13 can be compressed, and are led to until buckle 13 passes completely through this
Hole 31, buckle 13 can be restored to the original state in the presence of elasticity, and now bottom connection of the bottom plate 12 still with through hole 31 is touched, but buckle
13 afterbody can prop up the upper limb of through hole 31, so that buckle 11 is connected in through hole 31.
The inwall of each switch groove 3 is provided with two projections 32 being oppositely arranged.The clamping principle of snap fit 21 and the class of buckle 11
Seemingly, it can be compressed between cardboard and wedge 23, during forward movement, two wedges 23 closely connect with projection 32
Touch and constantly compressed, after wedge 23 fully passes over projection 32, wedge 23 restores to the original state, now straight panel 22 and projection 32
Contact, two wedges 23 are blocked by projection 32, so as to ensure that the clamping of snap fit 21 and switch groove 3.
Claims (7)
1. a kind of shield for electrothermal relay, the electrothermal relay is provided with 3 switch grooves, it is characterised in that the shield bag
Include integrally formed top cover and foreboard, top cover and the foreboard vertical distribution, the rear end of the top cover be used for provided with 3 and heat after
The buckle of connection at the top of electric switch groove, the bottom of the foreboard is provided with 3 pairs of snap fits matched with switch groove inwall.
2. a kind of shield for electrothermal relay according to claim 1, it is characterised in that described buckle includes bottom plate
And the buckle with bottom plate arrangement at an acute angle, the bottom plate flushed with the lower surface of top cover, and the bottom plate and buckle are integrally formed.
3. a kind of shield for electrothermal relay according to claim 2, it is characterised in that described bottom plate and buckle it
Between angle be 20~40 °.
4. a kind of shield for electrothermal relay according to claim 2, it is characterised in that set at the top of the switch groove
There is cylindricality through hole, the width of the through hole and the width of bottom plate match, the height of through hole is less than between buckle afterbody and bottom plate
Distance.
5. a kind of shield for electrothermal relay according to claim 1, it is characterised in that the snap fit described in each pair includes
Two vertical and parallel straight panels and it is arranged on the outside of two pieces of straight panels and abducent wedge, between two pieces of straight panels
Distance matches with switching the distance between groove inwall.
6. a kind of shield for electrothermal relay according to claim 5, it is characterised in that the inwall of each switch groove is set
There are two projections being oppositely arranged.
7. a kind of shield for electrothermal relay according to claim 1, it is characterised in that the top cover is provided with 3
Wiring hole, the position of each wiring hole is corresponding with a switch groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720169907.XU CN206480570U (en) | 2017-02-24 | 2017-02-24 | A kind of shield for electrothermal relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720169907.XU CN206480570U (en) | 2017-02-24 | 2017-02-24 | A kind of shield for electrothermal relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206480570U true CN206480570U (en) | 2017-09-08 |
Family
ID=59746431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720169907.XU Active CN206480570U (en) | 2017-02-24 | 2017-02-24 | A kind of shield for electrothermal relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206480570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133340A (en) * | 2019-01-18 | 2019-08-16 | 广东电网有限责任公司 | A kind of outer shield |
-
2017
- 2017-02-24 CN CN201720169907.XU patent/CN206480570U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133340A (en) * | 2019-01-18 | 2019-08-16 | 广东电网有限责任公司 | A kind of outer shield |
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