CN207909612U - A kind of patch resistor and flexible PCB - Google Patents
A kind of patch resistor and flexible PCB Download PDFInfo
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- CN207909612U CN207909612U CN201820098937.0U CN201820098937U CN207909612U CN 207909612 U CN207909612 U CN 207909612U CN 201820098937 U CN201820098937 U CN 201820098937U CN 207909612 U CN207909612 U CN 207909612U
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- patch resistor
- backplate
- patch
- ceramic substrate
- resistor
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Abstract
The utility model is related to resistor technologies fields, disclose a kind of patch resistor and flexible PCB, patch resistor includes ceramic substrate and is connected to the backplate at the both ends of the bottom of ceramic substrate, the width of backplate and ceramic substrate it is of same size;Patch resistor further includes the front electrode at the both ends at the top for being connected to ceramic substrate and is connected to the termination electrode of the both sides of ceramic substrate, and one end of termination electrode is connect with front electrode, and the other end of termination electrode is connect with backplate;Patch resistor further includes resistive element, and resistive element is connected between two front electrodes;Patch resistor further includes nickel layer, and nickel layer is attached to the outer surface of backplate, front electrode and termination electrode.The patch resistor of the utility model embodiment can increase the contact area of patch resistor and flexible PCB, improve the mechanical strength of patch resistor, so that it is guaranteed that patch resistor can be securely connected on flexible PCB.
Description
Technical field
The utility model is related to resistor technologies fields, more particularly to a kind of patch resistor and flexible PCB.
Background technology
Patch resistor is one kind in glassy metal uranium resistor, by the way that metal powder and glass uranium powder are mixed,
And it is imprinted on substrate using silk screen print method manufactured.In addition, patch resistor has small characteristic, electricity can be greatlyd save
Road space cost, and convenient for safeguarding, therefore patch resistor is widely used in automotive electronics, medical instrument, electronics production
The fields such as product and household appliance.
Patch resistor is typically welded on flexible PCB, and flexible PCB be one kind by insulating substrate system flexible
At printed circuit, with good bending, thus flexible circuit inevitably encounter bending actively or passively,
Distortion and folding etc..Currently, due to the joint face common design of existing patch resistor and flexible PCB obtain it is smaller so that patch
The adhesive force of sheet resistance device is low, and mechanical strength is low, therefore when flexible PCB bends, be easy to cause patch resistor with
The cracking phenomenon of the welding end of flexible PCB so that patch resistor is disconnected with circuit, and then leads to circuit malfunction.
Utility model content
The purpose of this utility model is to provide a kind of patch resistor and flexible PCB, to solve due to existing patch electricity
The mechanical strength for hindering device is low, so as to cause when flexible circuit bends, what patch resistor and circuit were easy to disconnect
Technical problem, to ensure the normal work of circuit.
In order to solve the above-mentioned technical problem, the utility model provides a kind of patch resistor, including ceramic substrate and point
It is not connected to the backplate at the both ends of the bottom of the ceramic substrate, the width of the backplate and the ceramic substrate
It is of same size;
The patch resistor further include the both ends at the top for being connected to the ceramic substrate front electrode and
It is connected to the termination electrode of the both sides of the ceramic substrate, one end of the termination electrode is connect with the front electrode, described
The other end of termination electrode is connect with the backplate;
The patch resistor further includes resistive element, and the resistive element is connected between two front electrodes;
The patch resistor further includes nickel layer, and the nickel layer is attached to the backplate, the front electrode and institute
State the outer surface of termination electrode.
Preferably, the length of the patch resistor is 3.0mm~3.4mm, and width is 1.45mm~1.75mm;
Correspondingly, the width of the backplate is 1.45mm~1.75mm.
Preferably, the cross-sectional area of a backplate is 0.7975mm2~1.3125mm2。
Preferably, the thickness of the nickel layer is 7 μm~14 μm.
Preferably, the patch resistor further includes tin layers, and the tin layers are attached to the outer surface of the nickel layer.
Preferably, the patch resistor further includes the first protective layer and the second protective layer, first protection
Layer is attached to the outer surface of the resistive element, and the second protection sheath is attached on the outer surface of first protective layer;Institute
One end of one end and the tin layers for stating nickel layer is resisted against on second protective layer.
In order to solve identical technical problem, the utility model also provides a kind of flexible PCB, including pad and on
The patch resistor stated, the patch resistor are connected on the pad.
The utility model provides a kind of patch resistor and flexible PCB, the patch resistor include ceramic substrate with
And it is connected to the backplate at the both ends of the bottom of the ceramic substrate, the width of the backplate and the ceramic base
Plate it is of same size;The patch resistor further includes the front electrode at the both ends at the top for being connected to the ceramic substrate
And it is connected to the termination electrode of the both sides of the ceramic substrate, one end of the termination electrode is connect with the front electrode,
The other end of the termination electrode is connect with the backplate;The patch resistor further includes resistive element, and the resistive element connects
It is connected between two front electrodes;The patch resistor further includes nickel layer, the nickel layer be attached to the backplate,
The outer surface of the front electrode and the termination electrode.By the way that the back side electricity is arranged at the both ends of the bottom of the ceramic substrate
Pole, and make the of same size of the width of the backplate and the ceramic substrate, to ensure the area foot of the backplate
It is enough big, so that it is guaranteed that the contact area of the patch resistor and flexible PCB can be increased, to improve the Chip-R
The mechanical strength of device, and then ensure that the patch resistor can be securely connected on flexible PCB, therefore effectively keep away
Exempted from when the flexible circuit bends, the patch resistor be easy with circuit disconnect the problem of, to ensure electricity
The normal work on road.In addition, by making the of same size of the width of the backplate and the ceramic substrate, guaranteeing
While so that the patch resistor is securely connected on flexible PCB, efficiently avoid due to the backplate
Area is excessive and leads to waste of material, and then guarantees to save the production cost of the patch resistor.In addition, passing through setting
The nickel layer, and make the nickel layer be attached to the backplate, the front electrode and the termination electrode outer surface, enhancing
It is connected to the ability of the patch resistor cracking resistance on flexible PCB, thereby further ensures that the normal work of circuit
Make.
Description of the drawings
Fig. 1 is the structural schematic diagram of the patch resistor in the utility model embodiment;
Fig. 2 is the assembling schematic diagram of the backplate and ceramic substrate in the utility model embodiment.
Wherein, 1, ceramic substrate;2, backplate;3, front electrode;4, termination electrode;5, resistive element;6, the first protective layer;
7, the second protective layer;8, nickel layer;9, tin layers.
Specific implementation mode
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the explanation of the utility model, the description in the orientation such as upper, lower, left, right, front and rear is limited both for Fig. 1
Fixed, when the modes of emplacement of the patch resistor changes, the description in corresponding orientation also will be according to modes of emplacement
Change and change, this will not be repeated here for the utility model.
In conjunction with shown in Fig. 1 and Fig. 2, a kind of patch resistor of the preferred embodiment in the utility model, including ceramic substrate 1 with
And it is connected to the backplate 2 at the both ends of the bottom of the ceramic substrate 1, the width of the backplate 2 and the pottery
Porcelain substrate 1 it is of same size;
The patch resistor further include the front electrode 3 at the both ends at the top for being connected to the ceramic substrate 1 with
And it is connected to the termination electrode 4 of the both sides of the ceramic substrate 1, one end of the termination electrode 4 connects with the front electrode 3
It connects, the other end of the termination electrode 4 is connect with the backplate 2;
The patch resistor further includes resistive element 5, and the resistive element 5 is connected between two front electrodes 3;
The patch resistor further includes nickel layer 8, and the nickel layer 8 is attached to the backplate 2, the front electrode 3
With the outer surface of the termination electrode 4.
In the utility model embodiment, the backplate is set by the both ends in the bottom of the ceramic substrate 1
2, and make the of same size of the width of the backplate 2 and the ceramic substrate 1, to ensure the area of the backplate 2
It is sufficiently large, so that it is guaranteed that the contact area of the patch resistor and flexible PCB can be increased, to improve the patch electricity
The mechanical strength of device is hindered, and then ensures that the patch resistor can be securely connected on the flexible PCB, therefore is had
Effect ground is avoided when flexible circuit bends, and the patch resistor is easy and circuit the problem of disconnecting, to ensure
The normal work of circuit.In addition, by making the of same size of the width of the backplate 2 and the ceramic substrate 1, ensuring
While the patch resistor can be made securely to be connected on flexible PCB, efficiently avoid due to back side electricity
The area of pole 2 is excessive and leads to waste of material, and then guarantees to save the production cost of the patch resistor.In addition, logical
It crosses and the nickel layer 8 is set, and the nickel layer 8 is made to be attached to the backplate 2, the front electrode 3 and the termination electrode 4
Outer surface enhances the ability for being connected to the patch resistor cracking resistance on flexible PCB, thereby further ensures that electricity
The normal work on road.
In the utility model embodiment, the length of the patch resistor is 3.0mm~3.4mm, width 1.45mm
~1.75mm;Correspondingly, the width of the backplate 2 is 1.45mm~1.75mm.By by the width of the backplate 2
It is set as 1.45mm~1.75mm with the width of the patch resistor, so that the width of the backplate 2 and the ceramics
Substrate 1 it is of same size, so that it is guaranteed that the area of the backplate 2 is sufficiently large, to guarantee to improve the Chip-R
The mechanical strength of device, and then guarantee that the patch resistor is securely connected to flexible electrical by the backplate 2
On the plate of road.
In the utility model embodiment, in order to ensure the area of the backplate 2 is sufficiently large, to guarantee to improve
The mechanical strength of the patch resistor, the cross-sectional area of a backplate 2 is 0.7975mm in the present embodiment2~
1.3125mm2.By the way that the cross-sectional area of the backplate 2 is arranged to 0.7975mm2~1.3125mm2, described to ensure
The area of backplate 2 is sufficiently large, to realize the contact area for increasing the patch resistor and flexible PCB, improves
The mechanical strength of the patch resistor, and then the stability that the backplate 2 is connect with flexible PCB is enhanced, to have
It avoids when flexible circuit bends to effect, what is split between the backplate 2, the nickel layer 8 and flexible PCB asks
Topic, so that it is guaranteed that the normal work of circuit.
In the utility model embodiment, in order to further increase the mechanical strength of the patch resistor, to ensure
Stating patch resistor can securely be connected on flexible PCB, and the thickness of nickel layer 8 described in the present embodiment is 7 μm~14 μ
m.By the way that the thickness of the nickel layer 8 is set as 7 μm~14 μm, the mechanical strength of the Chip-R is further improved, and
Enhance the ability for being connected to the patch resistor cracking resistance on flexible PCB so that guaranteeing to avoid the back of the body
While splitting between face electrode 2, the nickel layer 8 and flexible PCB, moreover it is possible to be effectively prevented from the termination electrode 4, the nickel
The problem of splitting between layer 8 and flexible PCB, so that it is guaranteed that can avoid between the patch resistor and flexible PCB
It disconnects, to ensure the normal work of circuit.
As shown in Figure 1, in order to make the Chip-R that there is good solderability, patch resistor described in the present embodiment
Further include tin layers 9, the tin layers 9 are attached to the outer surface of the nickel layer 8.By the way that institute is arranged on the outer surface of the nickel layer 8
State tin layers 9 so that the patch resistor has good solderability, in order to which the patch resistor is connected to flexible electrical
In the plate of road.In addition, by the way that the tin layers 9 are arranged, the storage life of the patch resistor is extended.
In the utility model embodiment, in order to protect the resistive element 5, patch resistor described in the present embodiment also wraps
Including the first protective layer 6 and the second protective layer 7, first protective layer 6 is attached to the outer surface of the resistive element 5, and described second
Protection sheath 7 is attached on the outer surface of first protective layer 6;One end of the nickel layer 8 and one end of the tin layers 9 are supported
It leans against on second protective layer 7.By making first protective layer 6 be attached to the outer surface of the resistive element 5, and make described
Second protection sheath 7 is attached on the outer surface of first protective layer 6 so that first protective layer 6 and described second is protected
While sheath 7 can play the role of mechanical protection to the resistive element 5 so that the surface of the resistive element 5 has good
Insulating properties, contact and break down with other conductors to avoid the resistive element 5.
In the utility model embodiment, the molding mode of the backplate 2 can be arranged according to actual use situation,
It need to only meet and guarantee securely to be connected to the patch resistor on flexible PCB i.e. by the backplate 7
It can.In order to make design and simplify the structure, to reduce cost, backplate 7 described in the present embodiment is using strip printing molding.
In the utility model embodiment, by setting the cross-sectional area of a backplate 2 to
0.7975mm2~1.3125mm2, the contact area of the patch resistor and flexible PCB is increased, to improve the patch
The mechanical strength of resistor, to enhance the stability that the backplate 2 is connect with flexible PCB;Meanwhile by by institute
The thickness for stating nickel layer is set as 7 μm~14 μm, further improves the mechanical strength of the patch resistor, and enhance connection
The ability of the patch resistor cracking resistance on flexible PCB, and then efficiently avoid bending when flexible circuit
When, the patch resistor be easy with circuit disconnect the problem of, it is ensured that the normal work of circuit.
In order to solve identical technical problem, the utility model also provides a kind of flexible PCB, including pad and on
The patch resistor stated, the patch resistor are connected on the pad.
To sum up, a kind of patch resistor of the utility model embodiment offer and flexible PCB, the patch resistor packet
It includes ceramic substrate 1 and is connected to the backplate 2 at the both ends of the bottom of the ceramic substrate 1, the backplate 2
Width is of same size with the ceramic substrate 1;The patch resistor further includes the top for being connected to the ceramic substrate 1
The front electrode 3 at the both ends in portion and be connected to the ceramic substrate 1 both sides termination electrode 4, the one of the termination electrode 4
End is connect with the front electrode 3, and the other end of the termination electrode 4 is connect with the backplate 2;The patch resistor is also
Including resistive element 5, the resistive element 5 is connected between two front electrodes 3;The patch resistor further includes nickel layer 8,
The nickel layer 8 be attached to the backplate 2, the front electrode 3 and the termination electrode 4 outer surface.By in the pottery
The backplate 2 is arranged in the both ends of the bottom of porcelain substrate 1, and makes the width and the ceramic substrate 1 of the backplate 2
Of same size, the area to ensure the backplate 2 is sufficiently large, so that it is guaranteed that can increase the patch resistor and flexibility
The area of the contact surface of circuit board to improve the mechanical strength of the patch resistor, and then ensures the patch resistor energy
It is enough to be securely connected on the flexible PCB, therefore be effectively prevented from when flexible circuit bends, the patch electricity
The problem of resistance device is easy to disconnect with circuit, to ensure the normal work of circuit.In addition, by making the backplate 2
Width is of same size with the ceramic substrate 1, is ensuring that the patch resistor is securely connected to flexible circuit
While on plate, efficiently avoid leading to waste of material since the area of the backplate 2 is excessive, and then guarantee
Save the production cost of the patch resistor.In addition, by the way that the nickel layer 8 is arranged, and the nickel layer 8 is made to be attached to the back of the body
The outer surface of face electrode 2, the front electrode 3 and the termination electrode 4 enhances the patch being connected on flexible PCB
The ability of resistor cracking resistance thereby further ensures that the normal work of circuit.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
The scope of protection of the utility model is also should be regarded as into replacement.
Claims (7)
1. a kind of patch resistor, which is characterized in that including ceramic substrate and be connected to the bottom of the ceramic substrate
Both ends backplate, the width of the backplate is of same size with the ceramic substrate;
The patch resistor further includes the front electrode and difference at the both ends at the top for being connected to the ceramic substrate
It is connected to the termination electrode of the both sides of the ceramic substrate, one end of the termination electrode is connect with the front electrode, the end electricity
The other end of pole is connect with the backplate;
The patch resistor further includes resistive element, and the resistive element is connected between two front electrodes;
The patch resistor further includes nickel layer, and the nickel layer is attached to the backplate, the front electrode and the end
The outer surface of electrode.
2. patch resistor as described in claim 1, which is characterized in that the length of the patch resistor be 3.0mm~
3.4mm, width are 1.45mm~1.75mm;Correspondingly, the width of the backplate is 1.45mm~1.75mm.
3. patch resistor as claimed in claim 1 or 2, which is characterized in that the cross-sectional area of a backplate
For 0.7975mm2~1.3125mm2。
4. patch resistor as described in claim 1, which is characterized in that the thickness of the nickel layer is 7 μm~14 μm.
5. patch resistor as described in claim 1 or 4, which is characterized in that the patch resistor further includes tin layers, described
Tin layers are attached to the outer surface of the nickel layer.
6. patch resistor as claimed in claim 5, which is characterized in that the patch resistor further include the first protective layer and
Second protective layer, first protective layer are attached to the outer surface of the resistive element, and second protective layer is attached to described
The outer surface of one protective layer;One end of the nickel layer and one end of the tin layers are resisted against on second protective layer.
7. a kind of flexible PCB, which is characterized in that including pad and patch as claimed in any one of claims 1 to 6 electricity
Device is hindered, the patch resistor is connected on the pad.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820098937.0U CN207909612U (en) | 2018-01-19 | 2018-01-19 | A kind of patch resistor and flexible PCB |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820098937.0U CN207909612U (en) | 2018-01-19 | 2018-01-19 | A kind of patch resistor and flexible PCB |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207909612U true CN207909612U (en) | 2018-09-25 |
Family
ID=63564188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201820098937.0U Active CN207909612U (en) | 2018-01-19 | 2018-01-19 | A kind of patch resistor and flexible PCB |
Country Status (1)
Country | Link |
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CN (1) | CN207909612U (en) |
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2018
- 2018-01-19 CN CN201820098937.0U patent/CN207909612U/en active Active
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