CN204029754U - The spiral fuse unit of a kind of electric motor car - Google Patents
The spiral fuse unit of a kind of electric motor car Download PDFInfo
- Publication number
- CN204029754U CN204029754U CN201420311189.1U CN201420311189U CN204029754U CN 204029754 U CN204029754 U CN 204029754U CN 201420311189 U CN201420311189 U CN 201420311189U CN 204029754 U CN204029754 U CN 204029754U
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- electric motor
- motor car
- fuse
- over cap
- base
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Abstract
The utility model discloses the spiral fuse unit of a kind of electric motor car, belong to fuse technical field.The spiral fuse unit of a kind of electric motor car of the present utility model, comprise base, over cap, strip fuse and nut, in described base, be provided with two mount pads, described mount pad is provided with connecting stud, described strip fuse is installed on two mount pads, and be set on connecting stud, and by nut check; Described over cap and base one side are rotationally connected, and opposite side snaps together.Fuse of the present utility model is difficult for loosening, and security performance is good, can effectively ensure the security appliance of electric motor car, and simple in structure, with low cost, easy for installation, is convenient to promote.
Description
Technical field
The utility model relates to a kind of fuse unit, more particularly, relates to the spiral fuse unit of a kind of electric motor car.
Background technology
The safeties of electric motor car are the safety guarantee of electric motor car.But what mostly use in industry at present is insert type fuse, because insert type fuse is prone to insecure phenomenon of pegging graft, has potential safety hazard.The severe sections such as the environment for use of electric motor car is more various, and some jolts, muddy, electric motor car is all the time in vibrational state, and inserted sheet fuse can become flexible due to frequent vibration, thereby causes that heating even burns.As China Patent No. ZL200920047172.9, Granted publication day is on June 16th, 2010, utility model name is called: a kind of vehicle high-temperature resistant insert type fuse, this application case relates to a kind of vehicle high-temperature resistant insert type fuse, comprise metal body and housing, metal body is that two pins that are connected by fuse-link form, housing is ceramic material, housing is provided with the flat cavity of a rear aperture, the front portion of housing have two with the pin mouth of cavity UNICOM, metal body is placed in housing cavity, the front end of two pins of metal body is placed in outside housing through pin mouth respectively, pin two side positions inside and outside being positioned at pin mouth are respectively provided with internal projection and outer lug, by spacing to metal body and housing, a recess is respectively established in two pin rear ends, and the opening of two recesses is relative, is provided with a glass column at housing cavity rear portion, and glass column is stuck between two recesses.The fuse structure of this application case is comparatively complicated, and shows by practice, and the fuse of this blade inserting easily becomes flexible because of vibration, causes potential safety hazard.Therefore, guarantee the reliability of safeties, become those skilled in the art and need badly the problem of solution.
Summary of the invention
1. the technical problem that utility model will solve
The purpose of this utility model is to overcome existing electric motor car insert type fuse easily because vibration is become flexible, form the deficiency of potential safety hazard, provide a kind of electric motor car spiral fuse unit, adopt the technical solution of the utility model, fuse is difficult for loosening, security performance is good, can effectively ensure the security appliance of electric motor car, and simple in structure, with low cost, easy for installation, be convenient to promote.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
The spiral fuse unit of a kind of electric motor car of the present utility model, comprise base, over cap, strip fuse and nut, in described base, be provided with two mount pads, described mount pad is provided with connecting stud, described strip fuse is installed on two mount pads, and be set on connecting stud, and by nut check; Described over cap and base one side are rotationally connected, and opposite side snaps together.
Further, described base is provided with convex edge, and described over cap is provided with snap fit, and described base and over cap fasten by above-mentioned convex edge, snap fit.
Further, be also provided with lug on described base, described lug and convex edge are positioned at the same side, for being easy to open base and over cap.
Further, on described over cap, be also provided with inspection hole, for observing the state of strip fuse.
Further, described strip fuse is zinc metal sheet.
Further, described base and over cap integrated injection molding.
Further, after described base and over cap fastening, be less than the rotary structure of intermediate sizes for two ends size.
3. beneficial effect
The technical scheme that adopts the utility model to provide, compared with existing known technology, has following beneficial effect:
(1) the spiral fuse unit of a kind of electric motor car of the present utility model, is provided with two mount pads in its base, and mount pad is provided with connecting stud, and strip fuse is installed on two mount pads, and is set on connecting stud, and by nut check; Over cap and base one side are rotationally connected, and opposite side snaps together; Adopt above-mentioned fuse unit structure, make the contact at fuse two ends more reliable, reduced contact resistance, reduced heating, can not cause that heating even burns because Vehicular vibration causes loosening, effectively ensure the security appliance of electric motor car;
(2) the spiral fuse unit of a kind of electric motor car of the present utility model, its base is provided with convex edge, over cap is provided with snap fit, base and over cap fasten by above-mentioned convex edge, snap fit, and on base, be also provided with the lug for being easy to open base and over cap, simple in structure, easy installation and removal;
(3) the spiral fuse unit of a kind of electric motor car of the present utility model, is also provided with inspection hole on its over cap, for observing the state of strip fuse, can intuitive judgment fault whether because blown fuse causes, be convenient to maintenance and repair;
(4) the spiral fuse unit of a kind of electric motor car of the present utility model, its strip fuse is zinc metal sheet, can in the time of battery short circuit, fuse, the safety of protection miscellaneous part has prevented other potential safety hazards that cause due to short circuit simultaneously;
(5) the spiral fuse unit of a kind of electric motor car of the present utility model, its base and over cap integrated injection molding, insulation property and fire resistance are good, with low cost;
(6) the spiral fuse unit of a kind of electric motor car of the present utility model, its base and over cap fasten the rotary structure that is less than afterwards intermediate sizes for two ends size, and compact conformation, takes up room little;
(7) the spiral fuse unit of a kind of electric motor car of the present utility model, adopts standard nut locking strip fuse, and guarantee insurance silk, still can be in locking state under the situation of constantly vibration, and contact resistance can not increase, safe and reliable.
Brief description of the drawings
Fig. 1 is the structural representation of the spiral fuse unit of a kind of electric motor car of the present utility model.
Label declaration in schematic diagram:
1, base; 11, mount pad; 12, connecting stud; 13, lug; 14, convex edge; 2, over cap; 21, inspection hole; 22, snap fit; 3, strip fuse; 4, nut.
Embodiment
For further understanding content of the present utility model, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
Embodiment
In conjunction with Fig. 1, the spiral fuse unit of a kind of electric motor car of the present embodiment, comprise base 1, over cap 2, strip fuse 3 and nut 4, in base 1, be provided with two mount pads 11, mount pad 11 is provided with connecting stud 12, and particularly, two mount pads 11 are symmetrical arranged in base 1, and mount pad 11 is cylindric, on this face of cylinder, is provided with reinforcement; Strip fuse 3 is installed on two mount pads 11, and be set on connecting stud 12, and lock by nut 4, when use, strip fuse 3 is connected on the circuit needing, then with nut 4, strip fuse 3 and circuit lead are locked, make the contact at fuse two ends more reliable, reduced contact resistance, reduced heating, can not cause that heating even burns because Vehicular vibration causes loosening, effectively ensure the security appliance of electric motor car.
Over cap 2 is rotationally connected (being similar to hinged) with base 1 one sides, and opposite side snaps together.Specifically in the present embodiment, base 1 is provided with convex edge 14, and over cap 2 is provided with snap fit 22, and base 1 and over cap 2 fasten by above-mentioned convex edge 14, snap fit 22, sound construction after fastening.For the ease of easily opening of base 1 and over cap 2, on base 1, be also provided with lug 13, lug 13 is positioned at the same side with convex edge 14, simple in structure, easy installation and removal; When concrete operations, two hands are buckled in respectively on snap fit 22 and lug 13, and pull in the opposite direction, just can open like a cork over cap 2.
For the ease of observing the state of strip fuse 3, on over cap 2, be also provided with inspection hole 21, the position of this inspection hole 21 is right against strip fuse 3, can intuitive judgment fault whether because blown fuse causes, be convenient to maintenance and repair; In the time that strip fuse 3 fuses, also play certain thermolysis, while avoiding strip fuse 3 to fuse, heat is too concentrated and damage miscellaneous part simultaneously.
Strip fuse 3 in the present embodiment is zinc metal sheet, can in the time of battery short circuit, fuse, and the safety of protection miscellaneous part has prevented other potential safety hazards that cause due to short circuit simultaneously.Base 1 and over cap 2 integrated injection moldings, particularly, comprise mount pad 11, lug 13, the convex edge 14 of being located on base 1 and be located at inspection hole 21, the snap fit 22 on over cap 2, the junction of base 1 and over cap 2 is flexible plastic thin layer, to ensure that base 1 and over cap 2 can rotate fastening; In addition, connecting stud 12 is metallic article, and together with being together injection-moulded in base 1, over cap 2 as inserts, moulding insulation property and fire resistance are good, with low cost.Nut 4 is metal standard component, and locking torque is set as 5～7N.m, has good locking function, guarantee insurance silk, still can be in locking state under the situation of constantly vibration, and contact resistance can not increase, safe and reliable, and after being connected with circuit lead, there is good conductivity.The rotary structure that is less than intermediate sizes after base 1 in the present embodiment and over cap 2 fasten for two ends size, compact conformation, takes up room little.
The spiral fuse unit of a kind of electric motor car of the present utility model, while installing and using, is installed on strip fuse 3 on mount pad 11, and is connected on the circuit needing; Then lock with nut 4, buckle over cap 2, base 1 is fixed on vehicle frame.In the time there is vehicle fault, can, by the inspection hole 21 intuitive judgment faults on over cap 2 whether because blown fuse causes, facilitate malfunction elimination and maintenance; In the time being judged as strip fuse 3 and fusing, discharge after fault, over cap 2 is opened, change strip fuse 3, simple to operation.The spiral fuse unit of a kind of electric motor car of the present utility model, fuse is difficult for loosening, and security performance is good, can effectively ensure the security appliance of electric motor car, and simple in structure, with low cost, easy for installation, is convenient to promote.
Below schematically the utility model and execution mode thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of execution mode of the present utility model, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that not departing from the utility model creation aim, without creatively designing the frame mode similar to this technical scheme and embodiment, all should belong to protection range of the present utility model.
Claims (7)
1. the spiral fuse unit of electric motor car, it is characterized in that: comprise base (1), over cap (2), strip fuse (3) and nut (4), in described base (1), be provided with two mount pads (11), described mount pad (11) is provided with connecting stud (12), described strip fuse (3) is installed on two mount pads (11), and it is upper to be set in connecting stud (12), and by nut (4) locking; Described over cap (2) is rotationally connected with base (1) one side, and opposite side snaps together.
2. the spiral fuse unit of a kind of electric motor car according to claim 1; it is characterized in that: described base (1) is provided with convex edge (14); described over cap (2) is provided with snap fit (22), and described base (1) and over cap (2) fasten by above-mentioned convex edge (14), snap fit (22).
3. the spiral fuse unit of a kind of electric motor car according to claim 2; it is characterized in that: on described base (1), be also provided with lug (13); described lug (13) is positioned at the same side with convex edge (14), for being easy to open base (1) and over cap (2).
4. according to the spiral fuse unit of a kind of electric motor car described in claims 1 to 3 any one, it is characterized in that: on described over cap (2), be also provided with inspection hole (21), for observing the state of strip fuse (3).
5. the spiral fuse unit of a kind of electric motor car according to claim 4, is characterized in that: described strip fuse (3) is zinc metal sheet.
6. the spiral fuse unit of a kind of electric motor car according to claim 5, is characterized in that: described base (1) and over cap (2) integrated injection molding.
7. the spiral fuse unit of a kind of electric motor car according to claim 6, is characterized in that: the rotary structure that is less than intermediate sizes after described base (1) and over cap (2) fasten for two ends size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420311189.1U CN204029754U (en) | 2014-06-11 | 2014-06-11 | The spiral fuse unit of a kind of electric motor car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420311189.1U CN204029754U (en) | 2014-06-11 | 2014-06-11 | The spiral fuse unit of a kind of electric motor car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204029754U true CN204029754U (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420311189.1U Expired - Fee Related CN204029754U (en) | 2014-06-11 | 2014-06-11 | The spiral fuse unit of a kind of electric motor car |
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| Country | Link |
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| CN (1) | CN204029754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071156A (en) * | 2015-07-23 | 2015-11-18 | 柳州铁道职业技术学院 | Intelligent and environment-friendly type automobile plug-in protector with replaceable fuse |
-
2014
- 2014-06-11 CN CN201420311189.1U patent/CN204029754U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071156A (en) * | 2015-07-23 | 2015-11-18 | 柳州铁道职业技术学院 | Intelligent and environment-friendly type automobile plug-in protector with replaceable fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20190611 |