CN208400780U - Thermal protector and electric appliance - Google Patents
Thermal protector and electric appliance Download PDFInfo
- Publication number
- CN208400780U CN208400780U CN201820551989.9U CN201820551989U CN208400780U CN 208400780 U CN208400780 U CN 208400780U CN 201820551989 U CN201820551989 U CN 201820551989U CN 208400780 U CN208400780 U CN 208400780U
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- Prior art keywords
- movable contact
- bracket
- thermal protector
- contact piece
- base
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- 230000001012 protector Effects 0.000 title claims abstract description 76
- 230000003068 static effect Effects 0.000 claims abstract description 32
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 230000013011 mating Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model embodiment provides a kind of thermal protector and electric appliance.The thermal protector includes: shell；It is mounted on the bracket of the interior of shell；The movable contact spring being connect with the first end of the bracket；The static contact contacted with the movable contact spring, the end thereof contacts that the static contact is connect with the separate and bracket of the movable contact spring；Bimetal leaf between the bracket and the movable contact spring is set；First inserting terminal, one end of first inserting terminal are mounted in the second end of the bracket or connect with the static contact, and the other end is emerging in the shell exterior.
Description
Technical Field
The utility model relates to an electrical apparatus safety field particularly, relates to a thermal protector and electrical apparatus.
Background
Existing thermal protectors are used to protect electrical appliances. The specific working principle is as follows: when the electrical equipment provided with the thermal protector is in overcurrent or overheating, the bimetallic strip of the thermal protector can bounce up and down under the action of the current thermal effect to break a loop, so that the electrical equipment is protected. But the existing thermal protector and electrical equipment are inconvenient to install.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a thermal protector and an electrical appliance.
The embodiment of the utility model provides a pair of thermal protector, thermal protector includes:
a housing;
a bracket mounted inside the housing;
the movable contact spring is connected with the first end of the bracket;
the static contact piece is in contact with one end of the movable contact piece, which is far away from the end connected with the bracket;
the bimetallic strip is arranged between the bracket and the movable contact spring;
and one end of the first plug-in terminal is arranged on the second end of the bracket or connected with the static contact piece, and the other end of the first plug-in terminal is exposed outside the shell.
Optionally, the thermal protector further comprises a second plug terminal mounted on the stationary contact or on the second end of the bracket.
Through setting up two spliced terminal convenience of customers and treating the electrical apparatus of protecting and be connected when using, improve hot protector's installation effectiveness.
Optionally, the thermal protector further comprises a wire, the static contact is provided with a static contact terminal, and the wire is mounted on the terminal of the static contact or on the second end of the bracket.
The thermal protector is provided with the lead, so that the requirements of users in different scenes are met, and the thermal protector is stronger in variability.
Optionally, the thermal protector further comprises a base, a first surface of the base is mounted in contact with a second end of the bracket, the static contact is mounted on a second surface of the base opposite to the first surface, and an end of the movable contact far away from the connection with the bracket covers the static contact.
Through setting up the base, will the static contact is installed on the base, can avoid the activity of static contact, avoid when hot protection, movable contact and static contact all are in the active condition and lead to effectively breaking off circuit and connecting to improve hot protector's protection effect.
Optionally, the base is perpendicular to the first surface and the second surface, two opposite connection surfaces connecting the first surface and the second surface are respectively provided with a clamping groove, and the bracket is provided with a clamping pin matched with the clamping groove.
Through set up the draw-in groove on the base, can make the support can hug closely the base better, makes thermal protector's structure compacter, improves thermal protector's stability.
Optionally, a first positioning hole is formed in the first surface of the base, and a second positioning hole corresponding to the first positioning hole is formed in the support; and when the positioning device is installed, the first positioning hole and the second positioning hole are correspondingly installed.
Through setting up the locating hole can make thermal protector when the preparation installation, can install more accurately, reduces each part dislocation installation's of thermal protector probability.
Optionally, the base is arranged in a stepped shape, the second surface is an upper surface of the first step, an edge of the movable contact piece faces a side surface of the second step, and the side surface is an arc-shaped side surface matched with the edge of the movable contact piece in shape.
Optionally, one end of the movable contact piece, which is in contact with the fixed contact piece, is provided with a movable contact, and the movable contact piece is in contact with the fixed contact piece through the movable contact.
By arranging the movable contact, the contact surface between the movable contact piece and the static contact piece is less, so that the movable contact piece and the static contact piece are directly and easily separated, the thermal protector is better in sensitivity, and the effect of protecting an electric appliance is better.
Optionally, at least one protrusion is arranged at one end of the movable contact piece, which is mounted on the bracket, and grooves or through holes corresponding to the number of the protrusions are arranged at one end of the movable contact piece, which is mounted on the bracket, and the protrusions are mounted corresponding to the grooves or the through holes when the movable contact piece is mounted; or,
at least one groove or through hole is arranged at one end of the movable contact piece, which is mounted with the bracket, bulges with the number corresponding to that of the grooves or the through holes are arranged at one end of the movable contact piece, which is mounted with the bracket, and the bulges are correspondingly mounted with the grooves or the through holes during mounting.
The support and the bimetallic strip can be directly and stably installed by arranging the protrusion and the groove, and the bimetallic strip is prevented from jumping to be separated from the support when the current or the overheat occurs.
The embodiment of the utility model provides a still an electrical apparatus, electrical apparatus includes foretell hot protector.
Compared with the prior art, the utility model discloses thermal protector and electrical apparatus through be provided with plug terminal on thermal protector, can not need to process thermal protector just can realize that thermal protector and electrical apparatus are connected and use, has improved thermal protector's convenience of use greatly.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a thermal protector according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a support of a thermal protector according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a thermal protector according to another embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a thermal protector according to another embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a base of a thermal protector according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of another angle of the base of the thermal protector according to the embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a movable contact piece of a thermal protector according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a bimetal of the thermal protector according to an embodiment of the present invention.
Icon: 100-thermal protector; 110-a housing; 120-a scaffold; 121-bayonet lock; 122-a first end; 123-a second end; 124-central bump; 130-a movable contact spring; 131-a movable contact; 132-a bump; 133-a bump; 140-static contact; 141-stationary contact terminal; 150-bimetallic strip; 151-through holes; 161-a first plug terminal; 162-a second mating terminal; 170-a wire; 180-a base; 181-a first surface; 182-a second surface; 183-flank; 184-card slot; 185-first locating hole; 190-sealing member.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the utility model usually visits when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as a limitation of the present invention.
In the description of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a schematic structural diagram of a thermal protector 100 according to an embodiment of the present invention. As shown in fig. 1, the thermal protector 100 includes: a housing 110, a holder 120, a movable contact 130, a stationary contact 140, a bimetal 150, and a first socket terminal 161.
The housing 110 is sleeved outside the support 120, the movable contact piece 130, the static contact piece 140 and the bimetallic strip 150, so that the support 120, the movable contact piece 130, the static contact piece 140 and the bimetallic strip 150 are all installed inside the housing 110. The housing 110 may have any shape such as a rectangular parallelepiped shape, a square arch bridge shape, etc. with an opening. It is understood that the housing 110 may be configured to enclose the bracket 120, the movable contact 130, the static contact 140, the bimetal 150, and the like, and the embodiment of the present invention does not limit the shape of the housing 110.
In this embodiment, the length of the housing 110 may be between 15-25mm, for example, the length of the housing 110 may be 20 ± 0.5 mm. The width of the housing 110 may be between 7-8mm, for example, the width of the housing 110 may be 7.3 ± 0.15 mm. The thickness of the housing 110 may be between 3-4mm, for example, the width of the housing 110 may be 3.7 ± 0.15 mm.
In this embodiment, the bracket 120 is installed inside the housing 110. As shown in fig. 2, the first end 122 of the bracket 120 is stepped with the main body of the bracket 120, and the main body of the bracket 120 is provided with a central protrusion 124.
As shown in fig. 1, the movable contact 130 is connected to the first end 122 of the holder 120. Further, the movable contact 130 may be coupled with the step portion of the first end 122 of the holder 120.
The stationary contact 140 is in contact with the movable contact 130. In one embodiment, as shown in fig. 1, the stationary contact 140 contacts an end of the movable contact 130 distal from the connection with the carrier 120. In the first state, the bimetal strip 150 can abut against the central convex point 124 of the bracket 120; in another state, when the bimetal 150 bounces, the movable contact 130 may be touched to separate the movable contact 130 from the stationary contact 140.
The bimetal 150 is disposed between the holder 120 and the movable contact 130.
When the thermal protector is used, the static contact 140 can be connected with a wire, the wire and the first plug-in terminal 161 are connected in series in loops of various motors or electrical appliances, when the motors or the electrical appliances are in working, if the motors or the electrical appliances are abnormal in work or the current sharply increases, namely the ambient temperature reaches a temperature value set by the thermal protector 100, the bimetallic strip 150 bounces up and down under the action of the current thermal effect of large current and abuts against and collides with the movable contact 130, so that the movable contact 130 is separated from the static contact 140, and the loops are disconnected, and therefore, the overcurrent or overheat protection effect on the motors or the electrical appliances can be achieved. When the current of the motor or the electrical appliance returns to normal or the ambient temperature around the thermal protector 100 drops to a certain temperature, the bimetal 150 returns to a natural state and contacts with the central salient point 124 of the bracket 120, so that the movable contact 130 contacts with the static contact 140, the current returns to be connected, and the motor or the electrical appliance can return to normal operation.
In one embodiment, one end of the first plug terminal 161 is mounted on the second end 123 of the bracket 120, and the other end is exposed outside the housing 110. In one embodiment, the first mating terminal 161 is connected to the second end 123 of the bracket 120 by a fastener. In another embodiment, the first plug terminal 161 is connected to the direct second end 123 by welding or the like. In another embodiment, the first plug terminal 161 is integrally formed with the bracket 120.
In another embodiment, the first mating terminal 161 may be connected to the stationary contact 140. Further, the stationary contact 140 may be provided with a stationary contact terminal 141 (as shown in fig. 5), and the first socket terminal 161 is connected to the stationary contact terminal 141 of the stationary contact 140.
In this embodiment, as shown in fig. 3, the thermal protector 100 further includes a second plug terminal 162, and the second plug terminal 162 is mounted on the stationary contact 140. In another embodiment, the second mating terminal 162 is coupled to the second end 123 of the housing 120. Further, the first jack terminal 161 and the second jack terminal 162 are respectively connected to the bracket 120 or the stationary contact 140. Specifically, it may be that the first jack terminal 161 is connected to the second end 123 of the bracket 120, and the second jack terminal 162 is connected to the static contact 140; the second jack terminal 162 may be connected to the second end 123 of the holder 120, and the first jack terminal 161 may be connected to the stationary contact 140.
In this embodiment, as shown in fig. 4, the thermal protector 100 further includes a conducting wire 170, and the static contact 140 is provided with a static contact terminal 141. In one embodiment, the wires 170 may be mounted on the stationary terminals 141 of the stationary blades 140; may also be mounted at the second end 123 of the bracket 120. Further, the first plug terminal 161 and the wire 170 are respectively connected to the bracket 120 or the stationary contact 140. Specifically, it may be that the first jack terminal 161 is connected to the second end 123 of the bracket 120, and the wire 170 is connected to the static contact 140; the wires 170 may be connected to the second end 123 of the bracket 120, and the first plug terminal 161 may be connected to the stationary contact 140.
In this embodiment, referring to fig. 1 again, the thermal protector 100 further includes a base 180. Further, as shown in fig. 1 and 5, a first surface 181 of the base 180 is mounted in contact with a second end 123 of the holder 120, the stationary contact 140 is mounted on a second surface 182 of the base 180 opposite to the first surface 181, and an end of the movable contact 130 remote from the connection with the holder 120 is covered on the stationary contact 140.
In this embodiment, as shown in fig. 5, the base 180 is perpendicular to the first surface 181 and the second surface 182, two opposite connection surfaces connecting the first surface and the second surface are respectively provided with a clamping groove 184, and the bracket 120 is provided with a clamping pin 121 matching with the clamping groove 184.
In this embodiment, as shown in fig. 6, a first positioning hole 185 is disposed on the first surface 181 of the base 180, and a second positioning hole corresponding to the first positioning hole 185 is disposed on the bracket 120; when the positioning device is installed, the first positioning hole 185 and the second positioning hole are installed correspondingly.
In this embodiment, the base 180 is configured to be a step shape, the second surface 182 is an upper surface of the first step, the edge of the movable contact 130 faces a side 183 of the second step, and the side 183 is an arc-shaped side 183 matching with the edge of the movable contact 130 in shape.
In this embodiment, as shown in fig. 7, a movable contact 131 is disposed at one end of the movable contact 130 contacting the fixed contact 140, and the movable contact 130 contacts the fixed contact 140 through the movable contact 131. When the thermal protector 100 is used, when the ambient temperature around the thermal protector 100 reaches a temperature value set by the thermal protector 100, the bimetal 150 bounces up and down under the action of a large-current thermal effect, touches the movable contact 130, and exerts an action on the movable contact 130, so that the movable contact 131 of the movable contact 130 is separated from the fixed contact 140, and the thermal protector 100 is disconnected from an electric appliance to form a loop.
Further, as shown in fig. 1, a protrusion 133 is disposed on the movable contact 130, and the protrusion 133 corresponds to a tail position of the bimetal 150. When the thermal protector 100 is used, when the ambient temperature around the thermal protector 100 reaches a temperature value set by the thermal protector 100, the bimetal 150 bounces up and down under the action of a large-current thermal effect, touches the protrusion 133 of the movable contact spring 130, and exerts a force on the movable contact spring 130, so that the movable contact 131 of the movable contact spring 130 is separated from the fixed contact 140, and the thermal protector 100 is disconnected from an electric appliance to form a loop. The movable contact spring 130 can be more easily bounced off by arranging the lug 133, so that the protection of the electric appliance is realized.
In one embodiment, as shown in fig. 7, the movable contact 130 is provided with at least one protrusion 132 (two are shown) at an end thereof mounted to the holder 120. As shown in fig. 8, grooves or through holes 151 (two are shown) corresponding to the number of the protrusions 132 are formed at one end of the bimetal 150 mounted to the bracket 120, and the protrusions 132 are mounted to the grooves or through holes 151.
In another embodiment, at least one groove or through hole is formed at one end of the movable contact piece 130 mounted on the bracket 120, and protrusions corresponding to the number of the grooves or through holes are formed at one end of the bimetal piece 150 mounted on the bracket 120, and when the bimetal piece is mounted, the protrusions are mounted corresponding to the grooves or through holes.
Further, a sealing member 190 is disposed at the opening of the housing 110, so that the holder 120, the movable contact 130, the stationary contact 140, the bimetal 150 and the base 180 are sealed inside the housing 110. In this embodiment, the sealing member 190 may be a sealant.
The utility model discloses thermal protector 100 through be provided with plug terminal on thermal protector 100, can not need to process thermal protector 100 just can realize that thermal protector 100 is connected with the electrical apparatus and uses, has improved thermal protector 100's convenience of use greatly.
The embodiment of the present invention is also an electrical appliance, which includes the thermal protector 100.
For specific details of the thermal protector 100 in this embodiment, reference may be further made to the description of the above-mentioned embodiment of the thermal protector 100, and details are not repeated here.
The utility model discloses electrical apparatus, through be provided with plug terminal on hot protector 100, can not need to process hot protector 100 just can realize that hot protector 100 is connected with the electrical apparatus and uses, has improved hot protector 100's convenience of use greatly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A thermal protector, characterized in that it comprises:
a housing;
a bracket mounted inside the housing;
the movable contact spring is connected with the first end of the bracket;
the static contact piece is in contact with the movable contact piece, and is in contact with one end of the movable contact piece, and the end is far away from the bracket;
the bimetallic strip is arranged between the bracket and the movable contact spring;
one end of the first plug terminal is mounted on the second end of the bracket or connected with the static contact piece, and the other end of the first plug terminal is exposed outside the shell;
the thermal protector further comprises a second plug terminal mounted on the stationary contact or on the second end of the bracket;
the thermal protector also comprises a base, wherein a first surface of the base is installed in contact with a second end of the bracket, the static contact piece is installed on a second surface of the base opposite to the first surface, and one end, far away from the end connected with the bracket, of the movable contact piece covers the static contact piece;
the base is perpendicular to the first surface and the second surface, two opposite connecting surfaces which are connected with the first surface and the second surface are respectively provided with a clamping groove, and the support is provided with a clamping pin matched with the clamping groove.
2. A thermal protector according to claim 1 further comprising a wire, the static contact being provided with a static contact terminal, the wire being mounted on the terminal of the static contact or on the second end of the carrier.
3. The thermal protector according to claim 1, wherein the first surface of the base is provided with a first positioning hole, and the holder is provided with a second positioning hole corresponding to the first positioning hole; and when the positioning device is installed, the first positioning hole and the second positioning hole are correspondingly installed.
4. A thermal protector according to claim 1 in which the base is stepped, the second face being the upper face of a first step, the edge of the movable contact facing the side of a second step, the side being an arcuate side which conforms to the shape of the edge of the movable contact.
5. A thermal protector according to claim 1, wherein a movable contact is provided at an end of the movable contact piece contacting the stationary contact piece, the movable contact piece contacting the stationary contact piece through the movable contact.
6. A thermal protector according to claim 1, wherein the movable contact is provided with at least one protrusion at an end thereof mounted to the holder, and the end thereof mounted to the holder is provided with a number of recesses or through holes corresponding to the number of the protrusions, and the protrusions are mounted to correspond to the recesses or through holes; or,
at least one groove or through hole is arranged at one end of the movable contact piece, which is mounted with the bracket, bulges with the number corresponding to that of the grooves or the through holes are arranged at one end of the movable contact piece, which is mounted with the bracket, and the bulges are correspondingly mounted with the grooves or the through holes during mounting.
7. An electrical appliance, characterized in that it comprises a thermal protector according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820551989.9U CN208400780U (en) | 2018-04-17 | 2018-04-17 | Thermal protector and electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820551989.9U CN208400780U (en) | 2018-04-17 | 2018-04-17 | Thermal protector and electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208400780U true CN208400780U (en) | 2019-01-18 |
Family
ID=65063888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820551989.9U Active CN208400780U (en) | 2018-04-17 | 2018-04-17 | Thermal protector and electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208400780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461349A (en) * | 2018-04-17 | 2018-08-28 | 佛山市常宏同力电器有限公司 | Thermal protector and electric appliance |
-
2018
- 2018-04-17 CN CN201820551989.9U patent/CN208400780U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461349A (en) * | 2018-04-17 | 2018-08-28 | 佛山市常宏同力电器有限公司 | Thermal protector and electric appliance |
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